From fredrik at pythonware.com  Thu Oct  2 19:47:28 2008
From: fredrik at pythonware.com (Fredrik Lundh)
Date: Thu, 02 Oct 2008 19:47:28 +0200
Subject: [Image-SIG] No "transparency" key in info for transparent PNG
In-Reply-To: <199b51b30809281630o1abf9b56ubef76dd4c3a9720c@mail.gmail.com>
References: <199b51b30809281630o1abf9b56ubef76dd4c3a9720c@mail.gmail.com>
Message-ID: <gc31fj$ieu$1@ger.gmane.org>

Szymon Kosok wrote:

> I have transparent PNG (when I open it in Photoshop it's transparent)
> and when I try to open it with PIL there is no "transparency" key in
> info. I've tried another transparent PNG (famfamfam icon) and no luck
> with that too. What can cause that problem? Mode is "RGBA".

the transparency key is used to mark a given color index as transparent 
for 8-bit (mode "P") images.  an RGBA image has a transparency value for 
each pixel (that's what the "A" in the mode name stands for).

</F>


From michael.odonnell at uam.es  Fri Oct  3 00:26:05 2008
From: michael.odonnell at uam.es (Michael O'Donnell)
Date: Fri, 3 Oct 2008 00:26:05 +0200
Subject: [Image-SIG] PIL and Python 2.6
Message-ID: <47e491110810021526la9bc525oa7867fb3950b8d0a@mail.gmail.com>

Hi All,

   Anyone know if PIL will be updated to work with Python 2.6
now that it is fully released?

If no update pending, is there a way to use the libraries installed
under 2.5 with 2.6?

(I am keen to use Python 2.6 but my software needs PIL)

Mick

From micko at wagsoft.com  Fri Oct  3 00:28:29 2008
From: micko at wagsoft.com (Michael O'Donnell)
Date: Fri, 3 Oct 2008 00:28:29 +0200
Subject: [Image-SIG] PIL and Python 2.6
Message-ID: <47e491110810021528v15631751mafb50a3a4784bffe@mail.gmail.com>

Hi All,

  Anyone know if PIL will be updated to work with Python 2.6
now that it is fully released?

If no update pending, is there a way to use the libraries installed
under 2.5 with 2.6?

(I am keen to use Python 2.6 but my software needs PIL)

Mick

From d_l_goldsmith at yahoo.com  Sat Oct  4 08:40:30 2008
From: d_l_goldsmith at yahoo.com (David Goldsmith)
Date: Fri, 3 Oct 2008 23:40:30 -0700 (PDT)
Subject: [Image-SIG] How to create a new RGB image from an mxnx3 numpy array
Message-ID: <977391.3577.qm@web52103.mail.re2.yahoo.com>

Hi!  I've been over and over the handbook, tried everything I could think of, and still can't figure it out: how the heck does one get an m x n x 3 numpy array interpreted as an RGB image?  I tried fromarray, both with the whole array, and trying to merge the three images resulting from fromarray-ing the three m x n sub-arrays, creating the image first and then using putdata in various ways, etc., etc.  Please help.  Thanks.

DG

PS: Also, more discussion of the Palette concept in the handbook would be nice (e.g., what's its relation, if any, to the concept of colormaps, as used, e.g., in matlab and matplotlib).  Thanks again.


      

From ned at nedbatchelder.com  Sat Oct  4 16:59:32 2008
From: ned at nedbatchelder.com (Ned Batchelder)
Date: Sat, 04 Oct 2008 10:59:32 -0400
Subject: [Image-SIG] How to create a new RGB image from an mxnx3 numpy
 array
In-Reply-To: <977391.3577.qm@web52103.mail.re2.yahoo.com>
References: <977391.3577.qm@web52103.mail.re2.yahoo.com>
Message-ID: <48E784D4.4020800@nedbatchelder.com>

I use code like this:

    pixels = numpy.zeros((200, 300, 3), dtype=numpy.uint8)
    //.. write data into the pixels array ..
    im = Image.fromarray(pixels)
  
--Ned.
http://nedbatchelder.com

David Goldsmith wrote:
> Hi!  I've been over and over the handbook, tried everything I could think of, and still can't figure it out: how the heck does one get an m x n x 3 numpy array interpreted as an RGB image?  I tried fromarray, both with the whole array, and trying to merge the three images resulting from fromarray-ing the three m x n sub-arrays, creating the image first and then using putdata in various ways, etc., etc.  Please help.  Thanks.
>
> DG
>
> PS: Also, more discussion of the Palette concept in the handbook would be nice (e.g., what's its relation, if any, to the concept of colormaps, as used, e.g., in matlab and matplotlib).  Thanks again.
>
>
>       
> _______________________________________________
> Image-SIG maillist  -  Image-SIG at python.org
> http://mail.python.org/mailman/listinfo/image-sig
>
>
>
>   

-- 
Ned Batchelder, http://nedbatchelder.com



From d_l_goldsmith at yahoo.com  Sat Oct  4 18:40:19 2008
From: d_l_goldsmith at yahoo.com (David Goldsmith)
Date: Sat, 4 Oct 2008 09:40:19 -0700 (PDT)
Subject: [Image-SIG] How to create a new RGB image from an mxnx3 numpy
	array
In-Reply-To: <48E784D4.4020800@nedbatchelder.com>
Message-ID: <851995.52002.qm@web52109.mail.re2.yahoo.com>

Awesome, thanks Ned!  FTR (in case it helps others): Ned's "solution" was, formally, among the first things (if not the first thing) I tried, but...for my RGB table, I was using a colormap salvaged from some previous work in matlab using the scipy sub-package scipy.io.mio.  All that data was in floating point in the interval [0,1], which I knew, but by the time I guessed that I probably needed to convert it to [0,255], I think I must've made some other change somewhere else and/or neglected to simultaneously enforce that the m x n x 3 array be numpy.uint8 so that, between those other two problems, the solution to my problem was being "masked". :-(  Anyway, thanks again!

DG

--- On Sat, 10/4/08, Ned Batchelder <ned at nedbatchelder.com> wrote:

> From: Ned Batchelder <ned at nedbatchelder.com>
> Subject: Re: [Image-SIG] How to create a new RGB image from an mxnx3 numpy array
> To: d_l_goldsmith at yahoo.com
> Cc: image-sig at python.org
> Date: Saturday, October 4, 2008, 7:59 AM
> I use code like this:
> 
>     pixels = numpy.zeros((200, 300, 3), dtype=numpy.uint8)
>     //.. write data into the pixels array ..
>     im = Image.fromarray(pixels)
>   
> --Ned.
> http://nedbatchelder.com
> 
> David Goldsmith wrote:
> > Hi!  I've been over and over the handbook, tried
> everything I could think of, and still can't figure it
> out: how the heck does one get an m x n x 3 numpy array
> interpreted as an RGB image?  I tried fromarray, both with
> the whole array, and trying to merge the three images
> resulting from fromarray-ing the three m x n sub-arrays,
> creating the image first and then using putdata in various
> ways, etc., etc.  Please help.  Thanks.
> >
> > DG
> >
> > PS: Also, more discussion of the Palette concept in
> the handbook would be nice (e.g., what's its relation,
> if any, to the concept of colormaps, as used, e.g., in
> matlab and matplotlib).  Thanks again.
> >
> >
> >       
> > _______________________________________________
> > Image-SIG maillist  -  Image-SIG at python.org
> > http://mail.python.org/mailman/listinfo/image-sig
> >
> >
> >
> >   
> 
> -- 
> Ned Batchelder, http://nedbatchelder.com


      

From fredrik at pythonware.com  Sun Oct  5 17:31:45 2008
From: fredrik at pythonware.com (Fredrik Lundh)
Date: Sun, 05 Oct 2008 17:31:45 +0200
Subject: [Image-SIG] PIL and Python 2.6
In-Reply-To: <47e491110810021528v15631751mafb50a3a4784bffe@mail.gmail.com>
References: <47e491110810021528v15631751mafb50a3a4784bffe@mail.gmail.com>
Message-ID: <gcaml1$k72$1@ger.gmane.org>

Michael O'Donnell wrote:

>   Anyone know if PIL will be updated to work with Python 2.6
> now that it is fully released?
> 
> If no update pending, is there a way to use the libraries installed
> under 2.5 with 2.6?
> 
> (I am keen to use Python 2.6 but my software needs PIL)

afaik, PIL 1.1.6 works just fine under 2.6.  there's a 2.6 build for 
windows available from:

     http://effbot.org/downloads/#pil

</F>


From mail at karsten.name  Sun Oct  5 22:54:17 2008
From: mail at karsten.name (Karsten Hiddemann)
Date: Sun, 05 Oct 2008 22:54:17 +0200
Subject: [Image-SIG] PIL and Python 2.6
In-Reply-To: <gcaml1$k72$1@ger.gmane.org>
References: <47e491110810021528v15631751mafb50a3a4784bffe@mail.gmail.com>
	<gcaml1$k72$1@ger.gmane.org>
Message-ID: <48E92979.3050002@karsten.name>

Fredrik Lundh schrieb:
> afaik, PIL 1.1.6 works just fine under 2.6.  there's a 2.6 build for
> windows available from:

I remember somebody saying 'If 2.6 doesn't require fixes, there will
most likely be a "patch catchup" round in august/september, and an
official 1.1.7 release after that.' I'm eagerly awaiting said things. :)

Cheers,
Karsten

From fredrik at pythonware.com  Mon Oct  6 20:42:26 2008
From: fredrik at pythonware.com (Fredrik Lundh)
Date: Mon, 06 Oct 2008 20:42:26 +0200
Subject: [Image-SIG] PIL and Python 2.6
In-Reply-To: <48E92979.3050002@karsten.name>
References: <47e491110810021528v15631751mafb50a3a4784bffe@mail.gmail.com>	<gcaml1$k72$1@ger.gmane.org>
	<48E92979.3050002@karsten.name>
Message-ID: <gcdm6i$579$1@ger.gmane.org>

Karsten Hiddemann wrote:

>> afaik, PIL 1.1.6 works just fine under 2.6.  there's a 2.6 build for
>> windows available from:
> 
> I remember somebody saying 'If 2.6 doesn't require fixes, there will
> most likely be a "patch catchup" round in august/september, and an
> official 1.1.7 release after that.' I'm eagerly awaiting said things. :)

yep, I seem to remember that too...

however, I got somewhat distracted by a job offer I couldn't refuse, in 
a country I haven't lived in before, so things are a bit busy right now.

(but in the meantime, maybe we could set up a google moderator series or 
a slinkset forum to collect and prioritize patches and other fixes that 
would be nice to have in an 1.1.7 maintenance release.  what would the 
list prefer?)

</F>


From borgus at gmx.de  Tue Oct  7 11:17:41 2008
From: borgus at gmx.de (Sebastian Wernicke)
Date: Tue, 07 Oct 2008 11:17:41 +0200
Subject: [Image-SIG] support for more image-formats? iff?
Message-ID: <48EB2935.60200@gmx.de>

Hi guys!
This is my very first mail in this list, just wanna say 'hello' and ask 
a question...
I'm mainly a 3d artist and not a programmer...i just write my own small 
tools to make my work easyer...:o)

Question 1:
I'm searching  for iff  support, would be very nice for me to be able to 
open
it with the pil-modules... is this format planned to be supported?
IFF a maya file format with RGBA and a Z Channel (8 or 16Bit)

Question 2:
Is there a way to display 16 Bit/per Channel Pictures (such as Tiff)?

Hope that are not to stupid questions for you....

Best regards, Sebastian


From jcupitt at gmail.com  Tue Oct  7 12:00:04 2008
From: jcupitt at gmail.com (jcupitt at gmail.com)
Date: Tue, 7 Oct 2008 11:00:04 +0100
Subject: [Image-SIG] Yet another image processing library
In-Reply-To: <522c6460707300858q33bbdadehb8fb355c7cd617c3@mail.gmail.com>
References: <522c6460707300858q33bbdadehb8fb355c7cd617c3@mail.gmail.com>
Message-ID: <522c6460810070300g61c445e5xae544daba11fed99@mail.gmail.com>

2007/7/30  <jcupitt at gmail.com>:
> I help maintain an image processing library called VIPS. We've just
> released a new stable version and one of the new features is a Python
> binding.
>
>  http://www.vips.ecs.soton.ac.uk

I hope no one minds this announcement. We've just released a new
stable version of vips, 7.16.2, that improves the Python binding quite
a bit.

Good things about vips:

* fast, since it's written in C and has good SMP support
* low memory use, especially for large images and complex processing,
since it is demand-driven and keeps source images on disc where
possible
* many pixel formats, from 8 to 128-bit pixels, and any number of image bands
* >300 image processing operations available in Python
* LGPL license

Bad things about vips:

* no Python binding for Windows (though it ought to be easy to build)
* this new version is not yet available in all linuxes so you might
need to compile from source
* the Python binding is generated automatically from a C++ binding and
isn't very Pythonesque

More detail and benchmarks here:

http://www.vips.ecs.soton.ac.uk/index.php?title=Python

New stuff in this version:

* The varargs parts of the C++ API are now wrapped in Python, so you
can do things like building masks from lists:

mask = VMask.VIMask (3, 3, 2, 0,
		  [-1, -1, -1,
		   -1,  16, -1,
		   -1, -1, -1])

To make a 3x3 integer convolution mask, with scale == 2.

* The VImage class now has .tobuffer(), .frombuffer() and .tostring()
and .fromstring(), so you can efficiently move images between PIL and
VIPS. There are also a couple of utility functions to convert VIPS
headers to PIL headers and back. There's some sample code in SVN:

http://vips.svn.sourceforge.net/viewvc/vips/vips7/branches/vips-7.16/python/test/pilvips.py?view=markup

Although it won't copy over image metadata, like EXIF and ICC profiles, sadly.

John

From d_l_goldsmith at yahoo.com  Wed Oct  8 02:48:58 2008
From: d_l_goldsmith at yahoo.com (David Goldsmith)
Date: Tue, 7 Oct 2008 17:48:58 -0700 (PDT)
Subject: [Image-SIG] Yet another image processing library
In-Reply-To: <522c6460810070300g61c445e5xae544daba11fed99@mail.gmail.com>
Message-ID: <553219.92670.qm@web52103.mail.re2.yahoo.com>

How "PIL-like" is your Python API?

DG
--- On Tue, 10/7/08, jcupitt at gmail.com <jcupitt at gmail.com> wrote:

> From: jcupitt at gmail.com <jcupitt at gmail.com>
> Subject: Re: [Image-SIG] Yet another image processing library
> To: image-sig at python.org
> Date: Tuesday, October 7, 2008, 3:00 AM
> 2007/7/30  <jcupitt at gmail.com>:
> > I help maintain an image processing library called
> VIPS. We've just
> > released a new stable version and one of the new
> features is a Python
> > binding.
> >
> >  http://www.vips.ecs.soton.ac.uk
> 
> I hope no one minds this announcement. We've just
> released a new
> stable version of vips, 7.16.2, that improves the Python
> binding quite
> a bit.
> 
> Good things about vips:
> 
> * fast, since it's written in C and has good SMP
> support
> * low memory use, especially for large images and complex
> processing,
> since it is demand-driven and keeps source images on disc
> where
> possible
> * many pixel formats, from 8 to 128-bit pixels, and any
> number of image bands
> * >300 image processing operations available in Python
> * LGPL license
> 
> Bad things about vips:
> 
> * no Python binding for Windows (though it ought to be easy
> to build)
> * this new version is not yet available in all linuxes so
> you might
> need to compile from source
> * the Python binding is generated automatically from a C++
> binding and
> isn't very Pythonesque
> 
> More detail and benchmarks here:
> 
> http://www.vips.ecs.soton.ac.uk/index.php?title=Python
> 
> New stuff in this version:
> 
> * The varargs parts of the C++ API are now wrapped in
> Python, so you
> can do things like building masks from lists:
> 
> mask = VMask.VIMask (3, 3, 2, 0,
> 		  [-1, -1, -1,
> 		   -1,  16, -1,
> 		   -1, -1, -1])
> 
> To make a 3x3 integer convolution mask, with scale == 2.
> 
> * The VImage class now has .tobuffer(), .frombuffer() and
> .tostring()
> and .fromstring(), so you can efficiently move images
> between PIL and
> VIPS. There are also a couple of utility functions to
> convert VIPS
> headers to PIL headers and back. There's some sample
> code in SVN:
> 
> http://vips.svn.sourceforge.net/viewvc/vips/vips7/branches/vips-7.16/python/test/pilvips.py?view=markup
> 
> Although it won't copy over image metadata, like EXIF
> and ICC profiles, sadly.
> 
> John
> _______________________________________________
> Image-SIG maillist  -  Image-SIG at python.org
> http://mail.python.org/mailman/listinfo/image-sig


      

From jcupitt at gmail.com  Wed Oct  8 10:33:41 2008
From: jcupitt at gmail.com (jcupitt at gmail.com)
Date: Wed, 8 Oct 2008 09:33:41 +0100
Subject: [Image-SIG] Yet another image processing library
In-Reply-To: <553219.92670.qm@web52103.mail.re2.yahoo.com>
References: <522c6460810070300g61c445e5xae544daba11fed99@mail.gmail.com>
	<553219.92670.qm@web52103.mail.re2.yahoo.com>
Message-ID: <522c6460810080133x1378b368h9e9e88ec298c6ed1@mail.gmail.com>

2008/10/8 David Goldsmith <d_l_goldsmith at yahoo.com>:
> How "PIL-like" is your Python API?

The 'Python' page on our website has some sample code comparing PIL and vips:

http://www.vips.ecs.soton.ac.uk/index.php?title=Python#Speed_and_memory_use

So it's broadly similar. I suppose someone could write a wrapper class
that makes vips look more like PIL, but I don't think 100%
compatibility is possible, since vips has (almost) no destructive
operations.

I think the big differences are:

* vips should be quicker, especially if you have more than one CPU
core or you're working on large images, though it does depend on what
operations you use and what image format you work in
* vips can process larger images and needs less memory
* vips is more flexible in the range of image formats available: vips
images are width, height, bands, format and that's it, there's no RGB
mode or greyscale mode or alpha channel or anything like that
* vips can handle metadata like ICC profiles and EXIF data
* vips has a larger range of operations available (I think)
* vips is almost all C/C++, so it's harder to extend or modify from Python
* vips has (almost) no destructive operations: unlike PIL, you can't
modify images, you can only make new images (most demand-driven image
processing systems are like this, it makes caching and parallelism
much easier)
* PIL has a more 'natural' Python interface
* vips has a GUI you can use to experiment with (nip2), though it's
rather an odd one

John

From szymon at mwg.pl  Wed Oct  8 16:29:30 2008
From: szymon at mwg.pl (Szymon Kosok)
Date: Wed, 8 Oct 2008 16:29:30 +0200
Subject: [Image-SIG] Transparent paste - another problem
Message-ID: <199b51b30810080729t514f2380x5492bd0a7757e2ad@mail.gmail.com>

Hi,

I have another problem with PIL and transparent images. I have such code:

        foo = Image.open("bar.png")

        for p in w:

            baz = Image.open(p.element.binary.path)

            foo.paste(baz, (p.x, p.y), baz)

And the problem is... every baz (some of them are semi-transparent) is
transparent over every previous element.

Maybe I'll show what I want, and what I got:

http://i36.tinypic.com/2efjlaw.png - this is what I want,
http://i38.tinypic.com/11glf6t.png - and this what I get.

Any hints?

Best regards,
Szymon

From lists+Image_SIG at hoech.org  Wed Oct  8 17:09:41 2008
From: lists+Image_SIG at hoech.org (=?ISO-8859-1?Q?Florian_H=F6ch?=)
Date: Wed, 08 Oct 2008 17:09:41 +0200
Subject: [Image-SIG] Transparent paste - another problem
In-Reply-To: <199b51b30810080729t514f2380x5492bd0a7757e2ad@mail.gmail.com>
References: <199b51b30810080729t514f2380x5492bd0a7757e2ad@mail.gmail.com>
Message-ID: <48ECCD35.60608@hoech.org>

Hi,

without seeing the original foo and at least some of the baz images, 
it's hard to tell how to achieve what you're looking for. I'd assume you 
want some sort of "adaptive multiplication", where only transparent 
parts are "multiplied over" the existing image and fully opaque parts 
"knock out" everything under it.

Regards,

Florian

Szymon Kosok schrieb:
> Hi,
> 
> I have another problem with PIL and transparent images. I have such code:
> 
>         foo = Image.open("bar.png")
> 
>         for p in w:
> 
>             baz = Image.open(p.element.binary.path)
> 
>             foo.paste(baz, (p.x, p.y), baz)
> 
> And the problem is... every baz (some of them are semi-transparent) is
> transparent over every previous element.
> 
> Maybe I'll show what I want, and what I got:
> 
> http://i36.tinypic.com/2efjlaw.png - this is what I want,
> http://i38.tinypic.com/11glf6t.png - and this what I get.
> 
> Any hints?
> 
> Best regards,
> Szymon
> _______________________________________________
> Image-SIG maillist  -  Image-SIG at python.org
> http://mail.python.org/mailman/listinfo/image-sig

From szymon at mwg.pl  Wed Oct  8 17:25:55 2008
From: szymon at mwg.pl (Szymon Kosok)
Date: Wed, 8 Oct 2008 17:25:55 +0200
Subject: [Image-SIG] Transparent paste - another problem
In-Reply-To: <48ECCD35.60608@hoech.org>
References: <199b51b30810080729t514f2380x5492bd0a7757e2ad@mail.gmail.com>
	<48ECCD35.60608@hoech.org>
Message-ID: <199b51b30810080825m42d8e0c5vbb2152861d081874@mail.gmail.com>

Hi,

Ok. So here is some baz:

http://i.wonderlife.pl/cache/ubranie-83-620.png
http://i.wonderlife.pl/cache/ubranie-84-620.png

And this is foo:

http://i.wonderlife.pl/img/ciala/mc.png

Regards,
Szymon

2008/10/8 Florian H?ch <lists+Image_SIG at hoech.org>:
> Hi,
>
> without seeing the original foo and at least some of the baz images, it's
> hard to tell how to achieve what you're looking for. I'd assume you want
> some sort of "adaptive multiplication", where only transparent parts are
> "multiplied over" the existing image and fully opaque parts "knock out"
> everything under it.
>
> Regards,
>
> Florian
>
> Szymon Kosok schrieb:
>>
>> Hi,
>>
>> I have another problem with PIL and transparent images. I have such code:
>>
>>        foo = Image.open("bar.png")
>>
>>        for p in w:
>>
>>            baz = Image.open(p.element.binary.path)
>>
>>            foo.paste(baz, (p.x, p.y), baz)
>>
>> And the problem is... every baz (some of them are semi-transparent) is
>> transparent over every previous element.
>>
>> Maybe I'll show what I want, and what I got:
>>
>> http://i36.tinypic.com/2efjlaw.png - this is what I want,
>> http://i38.tinypic.com/11glf6t.png - and this what I get.
>>
>> Any hints?
>>
>> Best regards,
>> Szymon
>> _______________________________________________
>> Image-SIG maillist  -  Image-SIG at python.org
>> http://mail.python.org/mailman/listinfo/image-sig
>
> _______________________________________________
> Image-SIG maillist  -  Image-SIG at python.org
> http://mail.python.org/mailman/listinfo/image-sig
>

From d_l_goldsmith at yahoo.com  Wed Oct  8 18:59:34 2008
From: d_l_goldsmith at yahoo.com (David Goldsmith)
Date: Wed, 8 Oct 2008 09:59:34 -0700 (PDT)
Subject: [Image-SIG] Yet another image processing library
In-Reply-To: <522c6460810080133x1378b368h9e9e88ec298c6ed1@mail.gmail.com>
Message-ID: <371620.970.qm@web52109.mail.re2.yahoo.com>

Thanks, John, very helpful.  (FTR: in my case, it was a rhetorical question because, into the foreseeable future, I'm Windows-bound, but it was a helpful synopsis and hopefully others will fill find it so also.  Thanks again!)

DG
--- On Wed, 10/8/08, jcupitt at gmail.com <jcupitt at gmail.com> wrote:

> From: jcupitt at gmail.com <jcupitt at gmail.com>
> Subject: Re: [Image-SIG] Yet another image processing library
> To: d_l_goldsmith at yahoo.com
> Cc: image-sig at python.org
> Date: Wednesday, October 8, 2008, 1:33 AM
> 2008/10/8 David Goldsmith <d_l_goldsmith at yahoo.com>:
> > How "PIL-like" is your Python API?
> 
> The 'Python' page on our website has some sample
> code comparing PIL and vips:
> 
> http://www.vips.ecs.soton.ac.uk/index.php?title=Python#Speed_and_memory_use
> 
> So it's broadly similar. I suppose someone could write
> a wrapper class
> that makes vips look more like PIL, but I don't think
> 100%
> compatibility is possible, since vips has (almost) no
> destructive
> operations.
> 
> I think the big differences are:
> 
> * vips should be quicker, especially if you have more than
> one CPU
> core or you're working on large images, though it does
> depend on what
> operations you use and what image format you work in
> * vips can process larger images and needs less memory
> * vips is more flexible in the range of image formats
> available: vips
> images are width, height, bands, format and that's it,
> there's no RGB
> mode or greyscale mode or alpha channel or anything like
> that
> * vips can handle metadata like ICC profiles and EXIF data
> * vips has a larger range of operations available (I think)
> * vips is almost all C/C++, so it's harder to extend or
> modify from Python
> * vips has (almost) no destructive operations: unlike PIL,
> you can't
> modify images, you can only make new images (most
> demand-driven image
> processing systems are like this, it makes caching and
> parallelism
> much easier)
> * PIL has a more 'natural' Python interface
> * vips has a GUI you can use to experiment with (nip2),
> though it's
> rather an odd one
> 
> John


      

From Chris.Barker at noaa.gov  Wed Oct  8 21:28:40 2008
From: Chris.Barker at noaa.gov (Christopher Barker)
Date: Wed, 08 Oct 2008 12:28:40 -0700
Subject: [Image-SIG] Yet another image processing library
In-Reply-To: <371620.970.qm@web52109.mail.re2.yahoo.com>
References: <371620.970.qm@web52109.mail.re2.yahoo.com>
Message-ID: <48ED09E8.7050307@noaa.gov>

David Goldsmith wrote:


> in my case, it was a rhetorical
> question because, into the foreseeable future, I'm Windows-bound,

Is it not available for Windows? from the website, it looks like it is 
(apart from utf-8 filename issues)

Can it efficiently consume and/or produce numpy arrays? That would be 
very handy for "destructive" operations.

numpy can use the buffer interface, but it would be even better to 
support the new nd-array buffer interface:

http://www.python.org/dev/peps/pep-3118/


-Chris


-- 
Christopher Barker, Ph.D.
Oceanographer

Emergency Response Division
NOAA/NOS/OR&R            (206) 526-6959   voice
7600 Sand Point Way NE   (206) 526-6329   fax
Seattle, WA  98115       (206) 526-6317   main reception

Chris.Barker at noaa.gov

From jcupitt at gmail.com  Wed Oct  8 21:54:18 2008
From: jcupitt at gmail.com (jcupitt at gmail.com)
Date: Wed, 8 Oct 2008 20:54:18 +0100
Subject: [Image-SIG] Yet another image processing library
In-Reply-To: <48ED09E8.7050307@noaa.gov>
References: <371620.970.qm@web52109.mail.re2.yahoo.com>
	<48ED09E8.7050307@noaa.gov>
Message-ID: <522c6460810081254t698c07c5y8993553b4ceb54c3@mail.gmail.com>

2008/10/8 Christopher Barker <Chris.Barker at noaa.gov>:
> Is it not available for Windows? from the website, it looks like it is
> (apart from utf-8 filename issues)

The windows binary on the website does not include the Python binding.
It ought to build for windows (it builds a DLL for libvips with no
problems, for example), I just haven't done it.

> Can it efficiently consume and/or produce numpy arrays? That would be very
> handy for "destructive" operations.
>
> numpy can use the buffer interface, but it would be even better to support
> the new nd-array buffer interface:

vips has .tobuffer() and .frombuffer(), so I guess it should work with
numpy, but I've not tried.

John

From lists+Image_SIG at hoech.org  Fri Oct 10 10:55:27 2008
From: lists+Image_SIG at hoech.org (=?ISO-8859-1?Q?Florian_H=F6ch?=)
Date: Fri, 10 Oct 2008 10:55:27 +0200
Subject: [Image-SIG] Transparent paste - another problem
In-Reply-To: <199b51b30810080825m42d8e0c5vbb2152861d081874@mail.gmail.com>
References: <199b51b30810080729t514f2380x5492bd0a7757e2ad@mail.gmail.com>	
	<48ECCD35.60608@hoech.org>
	<199b51b30810080825m42d8e0c5vbb2152861d081874@mail.gmail.com>
Message-ID: <48EF187F.9050603@hoech.org>

Ok, I think I got it. The alpha channel needs to be updated during and 
inserted after the paste operations.

from PIL import Image, ImageChops

foo = Image.open("bar.png")
alpha = foo.split()[-1]

for p in w:
     baz = Image.open(p.element.binary.path)
     foo.paste(baz, (p.x, p.y), baz)
     alpha = ImageChops.add(alpha, baz.split()[-1])

foo.putalpha(alpha)

Regards,

Florian

Szymon Kosok schrieb:
> Hi,
> 
> Ok. So here is some baz:
> 
> http://i.wonderlife.pl/cache/ubranie-83-620.png
> http://i.wonderlife.pl/cache/ubranie-84-620.png
> 
> And this is foo:
> 
> http://i.wonderlife.pl/img/ciala/mc.png
> 
> Regards,
> Szymon
> 
> 2008/10/8 Florian H?ch <lists+Image_SIG at hoech.org>:
>> Hi,
>>
>> without seeing the original foo and at least some of the baz images, it's
>> hard to tell how to achieve what you're looking for. I'd assume you want
>> some sort of "adaptive multiplication", where only transparent parts are
>> "multiplied over" the existing image and fully opaque parts "knock out"
>> everything under it.
>>
>> Regards,
>>
>> Florian
>>
>> Szymon Kosok schrieb:
>>> Hi,
>>>
>>> I have another problem with PIL and transparent images. I have such code:
>>>
>>>        foo = Image.open("bar.png")
>>>
>>>        for p in w:
>>>
>>>            baz = Image.open(p.element.binary.path)
>>>
>>>            foo.paste(baz, (p.x, p.y), baz)
>>>
>>> And the problem is... every baz (some of them are semi-transparent) is
>>> transparent over every previous element.
>>>
>>> Maybe I'll show what I want, and what I got:
>>>
>>> http://i36.tinypic.com/2efjlaw.png - this is what I want,
>>> http://i38.tinypic.com/11glf6t.png - and this what I get.
>>>
>>> Any hints?
>>>
>>> Best regards,
>>> Szymon
>>> _______________________________________________
>>> Image-SIG maillist  -  Image-SIG at python.org
>>> http://mail.python.org/mailman/listinfo/image-sig
>> _______________________________________________
>> Image-SIG maillist  -  Image-SIG at python.org
>> http://mail.python.org/mailman/listinfo/image-sig
>>


From szymon at mwg.pl  Fri Oct 10 11:10:24 2008
From: szymon at mwg.pl (Szymon Kosok)
Date: Fri, 10 Oct 2008 11:10:24 +0200
Subject: [Image-SIG] Transparent paste - another problem
In-Reply-To: <48EF187F.9050603@hoech.org>
References: <199b51b30810080729t514f2380x5492bd0a7757e2ad@mail.gmail.com>
	<48ECCD35.60608@hoech.org>
	<199b51b30810080825m42d8e0c5vbb2152861d081874@mail.gmail.com>
	<48EF187F.9050603@hoech.org>
Message-ID: <199b51b30810100210h48a2a433kfed2b55c4530d002@mail.gmail.com>

Hello,

You are my hero, Florian. :) That works! :) Thanks.

Best regards,
Szymon

2008/10/10 Florian H?ch <lists+Image_SIG at hoech.org>:
> Ok, I think I got it. The alpha channel needs to be updated during and
> inserted after the paste operations.
>
> from PIL import Image, ImageChops
>
> foo = Image.open("bar.png")
> alpha = foo.split()[-1]
>
> for p in w:
>    baz = Image.open(p.element.binary.path)
>    foo.paste(baz, (p.x, p.y), baz)
>    alpha = ImageChops.add(alpha, baz.split()[-1])
>
> foo.putalpha(alpha)
>
> Regards,
>
> Florian
>
> Szymon Kosok schrieb:
>>
>> Hi,
>>
>> Ok. So here is some baz:
>>
>> http://i.wonderlife.pl/cache/ubranie-83-620.png
>> http://i.wonderlife.pl/cache/ubranie-84-620.png
>>
>> And this is foo:
>>
>> http://i.wonderlife.pl/img/ciala/mc.png
>>
>> Regards,
>> Szymon
>>
>> 2008/10/8 Florian H?ch <lists+Image_SIG at hoech.org>:
>>>
>>> Hi,
>>>
>>> without seeing the original foo and at least some of the baz images, it's
>>> hard to tell how to achieve what you're looking for. I'd assume you want
>>> some sort of "adaptive multiplication", where only transparent parts are
>>> "multiplied over" the existing image and fully opaque parts "knock out"
>>> everything under it.
>>>
>>> Regards,
>>>
>>> Florian
>>>
>>> Szymon Kosok schrieb:
>>>>
>>>> Hi,
>>>>
>>>> I have another problem with PIL and transparent images. I have such
>>>> code:
>>>>
>>>>       foo = Image.open("bar.png")
>>>>
>>>>       for p in w:
>>>>
>>>>           baz = Image.open(p.element.binary.path)
>>>>
>>>>           foo.paste(baz, (p.x, p.y), baz)
>>>>
>>>> And the problem is... every baz (some of them are semi-transparent) is
>>>> transparent over every previous element.
>>>>
>>>> Maybe I'll show what I want, and what I got:
>>>>
>>>> http://i36.tinypic.com/2efjlaw.png - this is what I want,
>>>> http://i38.tinypic.com/11glf6t.png - and this what I get.
>>>>
>>>> Any hints?
>>>>
>>>> Best regards,
>>>> Szymon
>>>> _______________________________________________
>>>> Image-SIG maillist  -  Image-SIG at python.org
>>>> http://mail.python.org/mailman/listinfo/image-sig
>>>
>>> _______________________________________________
>>> Image-SIG maillist  -  Image-SIG at python.org
>>> http://mail.python.org/mailman/listinfo/image-sig
>>>
>
> _______________________________________________
> Image-SIG maillist  -  Image-SIG at python.org
> http://mail.python.org/mailman/listinfo/image-sig
>

From lists+Image_SIG at hoech.org  Fri Oct 10 11:21:26 2008
From: lists+Image_SIG at hoech.org (=?ISO-8859-1?Q?Florian_H=F6ch?=)
Date: Fri, 10 Oct 2008 11:21:26 +0200
Subject: [Image-SIG] Transparent paste - another problem
In-Reply-To: <199b51b30810100210h48a2a433kfed2b55c4530d002@mail.gmail.com>
References: <199b51b30810080729t514f2380x5492bd0a7757e2ad@mail.gmail.com>	<48ECCD35.60608@hoech.org>	<199b51b30810080825m42d8e0c5vbb2152861d081874@mail.gmail.com>	<48EF187F.9050603@hoech.org>
	<199b51b30810100210h48a2a433kfed2b55c4530d002@mail.gmail.com>
Message-ID: <48EF1E96.9050407@hoech.org>

:) Another quick update. Use ImageChops.lighter instead of 
ImageChops.add (same arguments). That way the mask quality should not 
wear down when adding an alpha channel that is partially the same as the 
existing one.

Regards,

Florian

Szymon Kosok schrieb:
> Hello,
> 
> You are my hero, Florian. :) That works! :) Thanks.
> 
> Best regards,
> Szymon
> 
> 2008/10/10 Florian H?ch <lists+Image_SIG at hoech.org>:
>> Ok, I think I got it. The alpha channel needs to be updated during and
>> inserted after the paste operations.
>>
>> from PIL import Image, ImageChops
>>
>> foo = Image.open("bar.png")
>> alpha = foo.split()[-1]
>>
>> for p in w:
>>    baz = Image.open(p.element.binary.path)
>>    foo.paste(baz, (p.x, p.y), baz)
>>    alpha = ImageChops.add(alpha, baz.split()[-1])
>>
>> foo.putalpha(alpha)
>>
>> Regards,
>>
>> Florian
>>
>> Szymon Kosok schrieb:
>>> Hi,
>>>
>>> Ok. So here is some baz:
>>>
>>> http://i.wonderlife.pl/cache/ubranie-83-620.png
>>> http://i.wonderlife.pl/cache/ubranie-84-620.png
>>>
>>> And this is foo:
>>>
>>> http://i.wonderlife.pl/img/ciala/mc.png
>>>
>>> Regards,
>>> Szymon
>>>
>>> 2008/10/8 Florian H?ch <lists+Image_SIG at hoech.org>:
>>>> Hi,
>>>>
>>>> without seeing the original foo and at least some of the baz images, it's
>>>> hard to tell how to achieve what you're looking for. I'd assume you want
>>>> some sort of "adaptive multiplication", where only transparent parts are
>>>> "multiplied over" the existing image and fully opaque parts "knock out"
>>>> everything under it.
>>>>
>>>> Regards,
>>>>
>>>> Florian
>>>>
>>>> Szymon Kosok schrieb:
>>>>> Hi,
>>>>>
>>>>> I have another problem with PIL and transparent images. I have such
>>>>> code:
>>>>>
>>>>>       foo = Image.open("bar.png")
>>>>>
>>>>>       for p in w:
>>>>>
>>>>>           baz = Image.open(p.element.binary.path)
>>>>>
>>>>>           foo.paste(baz, (p.x, p.y), baz)
>>>>>
>>>>> And the problem is... every baz (some of them are semi-transparent) is
>>>>> transparent over every previous element.
>>>>>
>>>>> Maybe I'll show what I want, and what I got:
>>>>>
>>>>> http://i36.tinypic.com/2efjlaw.png - this is what I want,
>>>>> http://i38.tinypic.com/11glf6t.png - and this what I get.
>>>>>
>>>>> Any hints?
>>>>>
>>>>> Best regards,
>>>>> Szymon
>>>>> _______________________________________________
>>>>> Image-SIG maillist  -  Image-SIG at python.org
>>>>> http://mail.python.org/mailman/listinfo/image-sig
>>>> _______________________________________________
>>>> Image-SIG maillist  -  Image-SIG at python.org
>>>> http://mail.python.org/mailman/listinfo/image-sig
>>>>
>> _______________________________________________
>> Image-SIG maillist  -  Image-SIG at python.org
>> http://mail.python.org/mailman/listinfo/image-sig
>>
> _______________________________________________
> Image-SIG maillist  -  Image-SIG at python.org
> http://mail.python.org/mailman/listinfo/image-sig


From mail at karsten.name  Fri Oct 10 13:26:26 2008
From: mail at karsten.name (Karsten Hiddemann)
Date: Fri, 10 Oct 2008 13:26:26 +0200
Subject: [Image-SIG] PIL and Python 2.6
In-Reply-To: <gcdm6i$579$1@ger.gmane.org>
References: <47e491110810021528v15631751mafb50a3a4784bffe@mail.gmail.com>	<gcaml1$k72$1@ger.gmane.org>	<48E92979.3050002@karsten.name>
	<gcdm6i$579$1@ger.gmane.org>
Message-ID: <48EF3BE2.3070901@karsten.name>

Fredrik Lundh schrieb:
> (but in the meantime, maybe we could set up a google moderator series or
> a slinkset forum to collect and prioritize patches and other fixes that
> would be nice to have in an 1.1.7 maintenance release.  what would the
> list prefer?)

No comment from the list, so I assume that it has just the same problem
like I do: Absolutely no experience with either one. I guess you can
just set up what you prefer most from those two.

Cheers,
Karsten

From btkuhn at email.unc.edu  Tue Oct 14 01:44:32 2008
From: btkuhn at email.unc.edu (btkuhn at email.unc.edu)
Date: Mon, 13 Oct 2008 19:44:32 -0400
Subject: [Image-SIG] Image Support
Message-ID: <20081013194432.hj0f9xkzcwgk0c4k@webmail4.isis.unc.edu>

Hello,

I hope this is the correct support address; apologies if it is not. I 
am completely new to programming and am going through a tutorial using 
python, and the examples I am working with require PIL and ImageTk. I 
have downloaded and installed these applications but when I try to run 
a program using the image module, I get the error message "ImportError: 
No module named Image". I can't find the module in the installed 
directory, but I installed the program according to directions on your 
website. From looking on your website, it looks like this is a fairly 
common problem, but I didn't see instructions for how to "fix" it. 
Could you please help me out if you are able?

Thanks very much,
Ben

From jwt at onjapan.net  Tue Oct 14 02:01:35 2008
From: jwt at onjapan.net (Jim Tittsler)
Date: Tue, 14 Oct 2008 13:01:35 +1300
Subject: [Image-SIG] Image Support
In-Reply-To: <20081013194432.hj0f9xkzcwgk0c4k@webmail4.isis.unc.edu>
References: <20081013194432.hj0f9xkzcwgk0c4k@webmail4.isis.unc.edu>
Message-ID: <959A0FEE-F937-40E6-9380-A36ED30D3871@onjapan.net>

On Oct 14, 2008, at 12:44, btkuhn at email.unc.edu wrote:

> I hope this is the correct support address; apologies if it is not.  
> I am completely new to programming and am going through a tutorial  
> using python, and the examples I am working with require PIL and  
> ImageTk. I have downloaded and installed these applications but when  
> I try to run a program using the image module, I get the error  
> message "ImportError: No module named Image". I can't find the  
> module in the installed directory, but I installed the program  
> according to directions on your website.

Do you have more than one version of Python installed on your system?   
(Could you have installed PIL in one version of Python, but your  
system is using a different version when you "try to run a program"?)

Did the test step (python selftest.py) during the installation process  
succeed?


From Chris.Barker at noaa.gov  Tue Oct 14 03:43:36 2008
From: Chris.Barker at noaa.gov (Christopher Barker)
Date: Mon, 13 Oct 2008 18:43:36 -0700
Subject: [Image-SIG] Image Support
In-Reply-To: <20081013194432.hj0f9xkzcwgk0c4k@webmail4.isis.unc.edu>
References: <20081013194432.hj0f9xkzcwgk0c4k@webmail4.isis.unc.edu>
Message-ID: <48F3F948.7070604@noaa.gov>

btkuhn at email.unc.edu wrote:
> I hope this is the correct support address; apologies if it is not.

yes, this is the right list.

> I get the error message "ImportError: No 
> module named Image".

somehow it didn't get installed correctly. You'll need to tell us what 
platform you are on, how you installed python, and how you installed PIL.

and as another poster said -- this could be caused by having two 
versions of python in your system -- one you installed PIL into, and the 
one you are using.

-Chris


-- 
Christopher Barker, Ph.D.
Oceanographer

NOAA/OR&R/HAZMAT         (206) 526-6959   voice
7600 Sand Point Way NE   (206) 526-6329   fax
Seattle, WA  98115       (206) 526-6317   main reception

From btkuhn at email.unc.edu  Tue Oct 14 19:35:18 2008
From: btkuhn at email.unc.edu (btkuhn at email.unc.edu)
Date: Tue, 14 Oct 2008 13:35:18 -0400
Subject: [Image-SIG] Image Support
Message-ID: <20081014133518.5z2v1wgv4kcw408o@webmail4.isis.unc.edu>

Hello,

I sent a few emails yesterday requesting support help because I was 
unable to use the "Image.py" module on my machine with python 2.5. When 
SIG was installed, all modules were automatically saved in the folder 
C:\Python25\Lib\site-packages\PIL\ . This is the directory for the only 
version of Python on my machine. After trying to get the module to work 
for some time, I found that if I copy the module into the folder 
C:\Python25, the module is accessed properly and works correctly. I'm 
not sure why this is because with other downloaded modules I have they 
are imported correctly as long as saved in any folder within 
C:\Python25. Is there any way around saving every single file in the 
SIG package directly in the C:\Python25 folder, which will make it 
extremely cluttered? Sorry if this is a basic question; I'm new to 
programming.

Thanks,
Ben



From mck at tuxwerk.de  Thu Oct 16 09:24:43 2008
From: mck at tuxwerk.de (Marek Kralewski)
Date: Thu, 16 Oct 2008 09:24:43 +0200
Subject: [Image-SIG] EPS and resolution
Message-ID: <1224141883.6011.18.camel@localhost.localdomain>

Hi,

I am writing a script to convert EPS to PNG images. I need to set the
resolution (and geometry accordingly), since the rendered images are to
small. The resolution and geometry must be given as switches to the gs
command. Is there a way to overload the Ghostcript function in the
EpsImagePlugin.py file or to overload the plugin? The question hopefully
seems trivial to a python programmer..

Thank you, Marek


From egraham at cens.ucla.edu  Fri Oct 17 17:29:35 2008
From: egraham at cens.ucla.edu (Eric Graham)
Date: Fri, 17 Oct 2008 08:29:35 -0700
Subject: [Image-SIG] Analyzing hemispheric photos?
Message-ID: <BE49AA1E80474698B4240FA2AF3E8B11@cens7w7uh2elye>

Hello,

I received this request via the R-Ecology mailing list and thought I'd post
the question here.  Apparently Windows Vista 64-bit does not support Gap
Light Analyzer, which takes canopy hemispherical photos, thresholds them,
and then gives values such as % canopy openness, LAI, etc.  Has anyone used
PIL to analyze hemispheric photos?  If so, would you have some code lying
around to help out this person?  This is all assuming that Python + PIL work
under Windows Vista 64, which I know nothing about...  Thanks a lot!

Eric


From cannon.el at gmail.com  Fri Oct 17 20:54:47 2008
From: cannon.el at gmail.com (Laura & Edward Cannon)
Date: Fri, 17 Oct 2008 11:54:47 -0700
Subject: [Image-SIG] Analyzing hemispheric photos?
In-Reply-To: <BE49AA1E80474698B4240FA2AF3E8B11@cens7w7uh2elye>
References: <BE49AA1E80474698B4240FA2AF3E8B11@cens7w7uh2elye>
Message-ID: <b986b290810171154h1b152f03i556889943e687024@mail.gmail.com>

Python+PIL works great under vista, I use it all the time. Images can
be thresholded, and the ImageStat module might have some things that
you could use.

On Fri, Oct 17, 2008 at 8:29 AM, Eric Graham <egraham at cens.ucla.edu> wrote:
> Hello,
>
> I received this request via the R-Ecology mailing list and thought I'd post
> the question here.  Apparently Windows Vista 64-bit does not support Gap
> Light Analyzer, which takes canopy hemispherical photos, thresholds them,
> and then gives values such as % canopy openness, LAI, etc.  Has anyone used
> PIL to analyze hemispheric photos?  If so, would you have some code lying
> around to help out this person?  This is all assuming that Python + PIL work
> under Windows Vista 64, which I know nothing about...  Thanks a lot!
>
> Eric
>
> _______________________________________________
> Image-SIG maillist  -  Image-SIG at python.org
> http://mail.python.org/mailman/listinfo/image-sig
>

From dpmellis at gmail.com  Sun Oct 19 23:02:30 2008
From: dpmellis at gmail.com (Daniel Mellis)
Date: Sun, 19 Oct 2008 16:02:30 -0500
Subject: [Image-SIG] Help Installing PIL 1.1.6
Message-ID: <2F43092B-9C2C-4865-9AF3-5B25094124D1@gmail.com>

Hello,

I am running OS X 10.4.11 and python 2.5.2 and when I run "python  
setup.py install" I get the following error message:

--- using frameworks at /System/Library/Frameworks
building '_imaging' extension
Compiling with an SDK that doesn't seem to exist: /Developer/SDKs/ 
MacOSX10.4u.sdk
Please check your Xcode installation
gcc -arch ppc -arch i386 -isysroot /Developer/SDKs/MacOSX10.4u.sdk - 
fno-strict-aliasing -Wno-long-double -no-cpp-precomp -mno-fused-madd - 
fno-common -dynamic -DNDEBUG -g -O3 -DHAVE_LIBZ -DWORDS_BIGENDIAN -I/ 
usr/local/include/freetype2 -IlibImaging -I/Library/Frameworks/ 
Python.framework/Versions/2.5/include -I/usr/local/include -I/Library/ 
Frameworks/Python.framework/Versions/2.5/include/python2.5 -c  
_imaging.c -o build/temp.macosx-10.3-ppc-2.5/_imaging.o
unable to execute gcc: No such file or directory
error: command 'gcc' failed with exit status 1

I'm not very familiar with the unix aspects of OS X, so some hand  
holding would be greatly appreciated. Thanks!

Daniel

From Chris.Barker at noaa.gov  Mon Oct 20 01:31:38 2008
From: Chris.Barker at noaa.gov (Christopher Barker)
Date: Sun, 19 Oct 2008 16:31:38 -0700
Subject: [Image-SIG] Help Installing PIL 1.1.6
In-Reply-To: <2F43092B-9C2C-4865-9AF3-5B25094124D1@gmail.com>
References: <2F43092B-9C2C-4865-9AF3-5B25094124D1@gmail.com>
Message-ID: <48FBC35A.1060108@noaa.gov>

Daniel Mellis wrote:
> Hello,
> 
> I am running OS X 10.4.11 and python 2.5.2 and when I run "python 
> setup.py install" I get the following error message:

Use the package you fin here:

http://pythonmac.org/packages/py25-fat/index.html


Otherwise, you'll need to find and compile all the dependencies as 
Universal binaries, which is a pain.

-Chris

-- 
Christopher Barker, Ph.D.
Oceanographer

NOAA/OR&R/HAZMAT         (206) 526-6959   voice
7600 Sand Point Way NE   (206) 526-6329   fax
Seattle, WA  98115       (206) 526-6317   main reception

From rowen at u.washington.edu  Mon Oct 20 21:25:00 2008
From: rowen at u.washington.edu (Russell E. Owen)
Date: Mon, 20 Oct 2008 12:25:00 -0700
Subject: [Image-SIG] Help Installing PIL 1.1.6
References: <2F43092B-9C2C-4865-9AF3-5B25094124D1@gmail.com>
Message-ID: <rowen-68EA83.12250020102008@news.gmane.org>

In article <2F43092B-9C2C-4865-9AF3-5B25094124D1 at gmail.com>,
 Daniel Mellis <dpmellis at gmail.com> wrote:

> Hello,
> 
> I am running OS X 10.4.11 and python 2.5.2 and when I run "python  
> setup.py install" I get the following error message:
> 
> --- using frameworks at /System/Library/Frameworks
> building '_imaging' extension
> Compiling with an SDK that doesn't seem to exist: /Developer/SDKs/ 
> MacOSX10.4u.sdk
> Please check your Xcode installation
> gcc -arch ppc -arch i386 -isysroot /Developer/SDKs/MacOSX10.4u.sdk - 
> fno-strict-aliasing -Wno-long-double -no-cpp-precomp -mno-fused-madd - 
> fno-common -dynamic -DNDEBUG -g -O3 -DHAVE_LIBZ -DWORDS_BIGENDIAN -I/ 
> usr/local/include/freetype2 -IlibImaging -I/Library/Frameworks/ 
> Python.framework/Versions/2.5/include -I/usr/local/include -I/Library/ 
> Frameworks/Python.framework/Versions/2.5/include/python2.5 -c  
> _imaging.c -o build/temp.macosx-10.3-ppc-2.5/_imaging.o
> unable to execute gcc: No such file or directory
> error: command 'gcc' failed with exit status 1
> 
> I'm not very familiar with the unix aspects of OS X, so some hand  
> holding would be greatly appreciated. Thanks!

I agree with Chris. But to comment on your specific question: it looks 
to me as if you don't have Apple's developer's tools (a.k.a. XCode) 
installed -- it can't seem to find the C compiler (gcc). To build PIL 
from source you have to have the developer's tools installed. Then you'd 
have to build various unix libraries from source. It's a lot easier to 
use the existing binary if you can.

-- Russell


From msarahan at gmail.com  Mon Oct 20 05:15:51 2008
From: msarahan at gmail.com (Mike Sarahan)
Date: Sun, 19 Oct 2008 23:15:51 -0400
Subject: [Image-SIG] Help Installing PIL 1.1.6
In-Reply-To: <2F43092B-9C2C-4865-9AF3-5B25094124D1@gmail.com>
References: <2F43092B-9C2C-4865-9AF3-5B25094124D1@gmail.com>
Message-ID: <8275939c0810192015l5876e80awc653f259c3b6f79c@mail.gmail.com>

Hi Daniel,
It would be wise to also install Xcode, if you haven't already.  This is
includes gcc and the other things mentioned in debug output that you posted.
 It should be included on your OSX DVD.

As an alternative, you can download it from versiontracker or otherwise:
http://www.versiontracker.com/dyn/moreinfo/macosx/21437

Here's another potentially helpful links:
http://www.tech-recipes.com/rx/726/mac-os-x-install-gcc-compiler/

Google will also work wonders in your quest for Apple/GCC zen.

-Mike

On Sun, Oct 19, 2008 at 5:02 PM, Daniel Mellis <dpmellis at gmail.com> wrote:

> Hello,
>
> I am running OS X 10.4.11 and python 2.5.2 and when I run "python setup.py
> install" I get the following error message:
>
> --- using frameworks at /System/Library/Frameworks
> building '_imaging' extension
> Compiling with an SDK that doesn't seem to exist:
> /Developer/SDKs/MacOSX10.4u.sdk
> Please check your Xcode installation
> gcc -arch ppc -arch i386 -isysroot /Developer/SDKs/MacOSX10.4u.sdk
> -fno-strict-aliasing -Wno-long-double -no-cpp-precomp -mno-fused-madd
> -fno-common -dynamic -DNDEBUG -g -O3 -DHAVE_LIBZ -DWORDS_BIGENDIAN
> -I/usr/local/include/freetype2 -IlibImaging
> -I/Library/Frameworks/Python.framework/Versions/2.5/include
> -I/usr/local/include
> -I/Library/Frameworks/Python.framework/Versions/2.5/include/python2.5 -c
> _imaging.c -o build/temp.macosx-10.3-ppc-2.5/_imaging.o
> unable to execute gcc: No such file or directory
> error: command 'gcc' failed with exit status 1
>
> I'm not very familiar with the unix aspects of OS X, so some hand holding
> would be greatly appreciated. Thanks!
>
> Daniel
> _______________________________________________
> Image-SIG maillist  -  Image-SIG at python.org
> http://mail.python.org/mailman/listinfo/image-sig
>
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From ryanlists at gmail.com  Tue Oct 21 18:41:15 2008
From: ryanlists at gmail.com (Ryan Krauss)
Date: Tue, 21 Oct 2008 11:41:15 -0500
Subject: [Image-SIG] installation problems
Message-ID: <c5b438120810210941s50b4c293lc8b7e675ec7ad365@mail.gmail.com>

I am having trouble getting PIL 1.1.6 installed in windows.  The installer
shows a cmd window for a split second and dies without giving me any
information.  I messed around with the script about registering Python.
Python is registered, but the script doesn't think so because the keys don't
match exactly (trialing backslashes and so on or a different order for the
elements of PythonPath).

I tried installing from the source tarball but I get this message:

error: Python was built with Visual Studio 2003;
extensions must be built with a compiler than can generate compatible
binaries.
Visual Studio 2003 was not found on this system. If you have Cygwin
installed,
you can try compiling with MingW32, by passing "-c mingw32" to setup.py.


Trying to pass the -c mingw32 flag leads to the following:

C:\ryan\DOWNLO~1\Imaging-1.1.6>python setup.py install -c mingw32
usage: setup.py [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
   or: setup.py --help [cmd1 cmd2 ...]
   or: setup.py --help-commands
   or: setup.py cmd --help

error: invalid command 'mingw32'

C:\ryan\DOWNLO~1\Imaging-1.1.6>python setup.py install "-c mingw32"
usage: setup.py [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
   or: setup.py --help [cmd1 cmd2 ...]
   or: setup.py --help-commands
   or: setup.py cmd --help

error: option -m not recognized

C:\ryan\DOWNLO~1\Imaging-1.1.6>python setup.py -c mingw32 install
usage: setup.py [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
   or: setup.py --help [cmd1 cmd2 ...]
   or: setup.py --help-commands
   or: setup.py cmd --help

error: option -c not recognized

C:\ryan\DOWNLO~1\Imaging-1.1.6>python setup.py "-c mingw32" install
usage: setup.py [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
   or: setup.py --help [cmd1 cmd2 ...]
   or: setup.py --help-commands
   or: setup.py cmd --help

error: option -c not recognized


How do I either get the exe to run or get the install from source to work
with mingw32?

Thanks,

Ryan
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From smullen at uclick.com  Tue Oct 21 20:22:25 2008
From: smullen at uclick.com (Samuel Mullen)
Date: Tue, 21 Oct 2008 13:22:25 -0500
Subject: [Image-SIG] Resizing Tif's to smaller gifs adds pixels
Message-ID: <4c7eeb0e0810211122he0950d4mf24486e5ed6b0283@mail.gmail.com>

I'm not entirely sure how this group works: if there is a page I'm supposed
to follow up on or if I should expect an email in reply.  Anyway, here's my
question.

I'm very new to Python and PIL, I know how to do this stuff in perl and
ImageMagick, but I'm having issues with Python and PIL.

I need to scale a TIFF image from 1925x588 px to a GIF of 600xnnn px.

I've tried the following code, but it leads to a lot of extra odd colored
pixels being inserted into the resulting image.

img = "tmp/tmsho20080901.tif"
im = Image.open("tmp/tmsho20080901.tif")
w, h = im.size

im.thumbnail((600, h * 600 / w), Image.ANTIALIAS)

newimg = im.resize((600, int(h * (600.0 / w))), Image.ANTIALIAS)
newimg.save("tmsho20080901.gif")

Using ImageMagick's convert I would do this...

convert -colors 256 -resize 600 -colorspace RGB -black-threshold 100
-contrast -intent Perceptual tmp/tmsho20080901.tif tmsho20080901.gif

I think it may have something to do with the palette or the number of colors
alotted for the resulting image, but I'm really not a graphics guy.

Any help on this would be appreciated.

Samuel Mullen
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From ryanlists at gmail.com  Tue Oct 21 21:26:32 2008
From: ryanlists at gmail.com (Ryan Krauss)
Date: Tue, 21 Oct 2008 14:26:32 -0500
Subject: [Image-SIG] problems with PIL 1.1.6 installation
Message-ID: <c5b438120810211226x2657297ev50529ac1d972809b@mail.gmail.com>

I am having trouble getting PIL 1.1.6 installed in windows.  The installer
shows a cmd window for a split second and dies without giving me any
information.  I messed around with the script about registering Python.
Python is registered, but the script doesn't think so because the keys don't
match exactly (trialing backslashes and so on or a different order for the
elements of PythonPath).

I tried installing from the source tarball but I get this message:

error: Python was built with Visual Studio 2003;
extensions must be built with a compiler than can generate compatible
binaries.
Visual Studio 2003 was not found on this system. If you have Cygwin
installed,
you can try compiling with MingW32, by passing "-c mingw32" to setup.py.


Trying to pass the -c mingw32 flag leads to the following:

C:\ryan\DOWNLO~1\Imaging-1.1.6>python setup.py install -c mingw32
usage: setup.py [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
   or: setup.py --help [cmd1 cmd2 ...]
   or: setup.py --help-commands
   or: setup.py cmd --help

error: invalid command 'mingw32'

C:\ryan\DOWNLO~1\Imaging-1.1.6>python setup.py install "-c mingw32"
usage: setup.py [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
   or: setup.py --help [cmd1 cmd2 ...]
   or: setup.py --help-commands
   or: setup.py cmd --help

error: option -m not recognized

C:\ryan\DOWNLO~1\Imaging-1.1.6>python setup.py -c mingw32 install
usage: setup.py [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
   or: setup.py --help [cmd1 cmd2 ...]
   or: setup.py --help-commands
   or: setup.py cmd --help

error: option -c not recognized

C:\ryan\DOWNLO~1\Imaging-1.1.6>python setup.py "-c mingw32" install
usage: setup.py [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
   or: setup.py --help [cmd1 cmd2 ...]
   or: setup.py --help-commands
   or: setup.py cmd --help

error: option -c not recognized


How do I either get the exe to run or get the install from source to work
with mingw32?

Thanks,

Ryan
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From lists+Image_SIG at hoech.org  Wed Oct 22 15:28:35 2008
From: lists+Image_SIG at hoech.org (=?ISO-8859-1?Q?Florian_H=F6ch?=)
Date: Wed, 22 Oct 2008 15:28:35 +0200
Subject: [Image-SIG] problems with PIL 1.1.6 installation
In-Reply-To: <c5b438120810211226x2657297ev50529ac1d972809b@mail.gmail.com>
References: <c5b438120810211226x2657297ev50529ac1d972809b@mail.gmail.com>
Message-ID: <48FF2A83.5030003@hoech.org>

Hello,

the cmd window is curious. The installer should be a GUI application. 
Maybe the exe is broken. Did you try re-downloading?

Regards,

Florian

Ryan Krauss schrieb:
> I am having trouble getting PIL 1.1.6 installed in windows.  The 
> installer shows a cmd window for a split second and dies without giving 
> me any information.  I messed around with the script about registering 
> Python.  Python is registered, but the script doesn't think so because 
> the keys don't match exactly (trialing backslashes and so on or a 
> different order for the elements of PythonPath).
> 
> I tried installing from the source tarball but I get this message:
> 
> error: Python was built with Visual Studio 2003;
> extensions must be built with a compiler than can generate compatible 
> binaries.
> Visual Studio 2003 was not found on this system. If you have Cygwin 
> installed,
> you can try compiling with MingW32, by passing "-c mingw32" to setup.py.
> 
> 
> Trying to pass the -c mingw32 flag leads to the following:
> 
> C:\ryan\DOWNLO~1\Imaging-1.1.
> 6>python setup.py install -c mingw32
> usage: setup.py [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
>    or: setup.py --help [cmd1 cmd2 ...]
>    or: setup.py --help-commands
>    or: setup.py cmd --help
> 
> error: invalid command 'mingw32'
> 
> C:\ryan\DOWNLO~1\Imaging-1.1.6>python setup.py install "-c mingw32"
> usage: setup.py [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
>    or: setup.py --help [cmd1 cmd2 ...]
>    or: setup.py --help-commands
>    or: setup.py cmd --help
> 
> error: option -m not recognized
> 
> C:\ryan\DOWNLO~1\Imaging-1.1.6>python setup.py -c mingw32 install
> usage: setup.py [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
>    or: setup.py --help [cmd1 cmd2 ...]
>    or: setup.py --help-commands
>    or: setup.py cmd --help
> 
> error: option -c not recognized
> 
> C:\ryan\DOWNLO~1\Imaging-1.1.6>python setup.py "-c mingw32" install
> usage: setup.py [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
>    or: setup.py --help [cmd1 cmd2 ...]
>    or: setup.py --help-commands
>    or: setup.py cmd --help
> 
> error: option -c not recognized
> 
> 
> How do I either get the exe to run or get the install from source to 
> work with mingw32?
> 
> Thanks,
> 
> Ryan
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> Image-SIG maillist  -  Image-SIG at python.org
> http://mail.python.org/mailman/listinfo/image-sig

From G.Kloss at massey.ac.nz  Thu Oct 23 06:43:12 2008
From: G.Kloss at massey.ac.nz (Guy K. Kloss)
Date: Thu, 23 Oct 2008 17:43:12 +1300
Subject: [Image-SIG] Resizing Tif's to smaller gifs adds pixels
In-Reply-To: <4c7eeb0e0810211122he0950d4mf24486e5ed6b0283@mail.gmail.com>
References: <4c7eeb0e0810211122he0950d4mf24486e5ed6b0283@mail.gmail.com>
Message-ID: <200810231743.13075.G.Kloss@massey.ac.nz>

On Wed, 22 Oct 2008 7:22:25 am Samuel Mullen wrote:
> I think it may have something to do with the palette or the number of
> colors alotted for the resulting image, but I'm really not a graphics guy.

GIF is an image format than can handle only an indexed colour pallet of 256 
colours. So if you image used 8 bit per channel (true colour) you will 
experience some quality loss, and the image will look more grainy. Some 
software packages are quite good in optimising the pallet and use some 
dithering algorithms that make the effects stand out less.

Ever thought of using PNG instead of GIF? It very often works just as well, 
and PNG is a much more capable format.

HTH,

Guy

-- 
Guy K. Kloss
Institute of Information and Mathematical Sciences
Te Kura P?taiao o M?hiohio me P?ngarau
Room 2.63, Quad Block A Building
Massey University, Auckland, Albany
Private Bag 102 904, North Shore Mail Centre
voice: +64 9 414-0800 ext. 9585 ? fax: +64 9 441-8181
eMail: G.Kloss at massey.ac.nz ?http://www.massey.ac.nz/~gkloss/
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From cannon.el at gmail.com  Thu Oct 23 07:58:07 2008
From: cannon.el at gmail.com (Laura & Edward Cannon)
Date: Wed, 22 Oct 2008 22:58:07 -0700
Subject: [Image-SIG] antialiased lines and polygons
Message-ID: <b986b290810222258r2ba1102u155d8f6b0f94e44f@mail.gmail.com>

A quick question, is their a way to get an antialiased line or polygon
in PIL? I draw my shapes just fine, but the edges are jagged. Some
packages I know can antialias to reduce the appearance of
pixelization, is PIL one of those?
Edward

From karsten.hiddemann at mathematik.uni-dortmund.de  Thu Oct 23 10:35:29 2008
From: karsten.hiddemann at mathematik.uni-dortmund.de (Karsten Hiddemann)
Date: Thu, 23 Oct 2008 10:35:29 +0200
Subject: [Image-SIG] antialiased lines and polygons
In-Reply-To: <b986b290810222258r2ba1102u155d8f6b0f94e44f@mail.gmail.com>
References: <b986b290810222258r2ba1102u155d8f6b0f94e44f@mail.gmail.com>
Message-ID: <49003751.80200@mathematik.uni-dortmund.de>

Laura & Edward Cannon schrieb:
> Some packages I know can antialias to reduce the appearance
> of pixelization, is PIL one of those?

I haven't looked into how much PIL supports this, but maybe you want to
use aggdraw? From the product page:

The aggdraw module implements the basic WCK 2D Drawing Interface on top
of the AGG library [1]. This library provides high-quality drawing, with
anti-aliasing and alpha compositing, while being fully compatible with
the WCK renderer.

[1]: http://www.antigrain.com/

Cheers,
Karsten

From yoda at isr.ist.utl.pt  Fri Oct 24 13:14:00 2008
From: yoda at isr.ist.utl.pt (Rodrigo Ventura)
Date: Fri, 24 Oct 2008 12:14:00 +0100
Subject: [Image-SIG] PIL does not compile on python 2.6 in MacOSX Leopard
Message-ID: <82D90597-5C03-4F81-90CF-0B69A0DF5FDE@isr.ist.utl.pt>


I've compiled PIL just fine, with all optional support (used macports  
for the missing packages), with the python shipped with Leopard  
(2.5.1), but after installing the official MacPython distro, the PIL  
does not compile any more.

First of all, I get warning after almost all gcc calls during  
compilation that I did't get before. Sample example:

gcc -arch ppc -arch i386 -isysroot /Developer/SDKs/MacOSX10.4u.sdk - 
fno-strict-aliasing -fno-common -dynamic -DNDEBUG -g -O3 - 
DHAVE_LIBJPEG -DHAVE_LIBZ -I/System/Library/Frameworks/Tcl.framework/ 
Headers -I/System/Library/Frameworks/Tk.framework/Headers -I/opt/local/ 
include/freetype2 -IlibImaging -I/opt/local/include -I/Library/ 
Frameworks/Python.framework/Versions/2.6/include -I/usr/include -I/ 
Library/Frameworks/Python.framework/Versions/2.6/include/python2.6 -c  
libImaging/RawDecode.c -o build/temp.macosx-10.3-i386-2.6/libImaging/ 
RawDecode.o
In file included from /usr/include/math.h:26,
                  from /Library/Frameworks/Python.framework/Versions/ 
2.6/include/python2.6/pyport.h:235,
                  from /Library/Frameworks/Python.framework/Versions/ 
2.6/include/python2.6/Python.h:58,
                  from libImaging/ImPlatform.h:10,
                  from libImaging/Imaging.h:14,
                  from libImaging/RawDecode.c:17:
/usr/include/architecture/ppc/math.h:675: warning: conflicting types  
for built-in function 'scalb'

And then it fails with:

gcc -arch ppc -arch i386 -isysroot /Developer/SDKs/MacOSX10.4u.sdk -g - 
bundle -undefined dynamic_lookup build/temp.macosx-10.3-i386-2.6/ 
_imagingtk.o build/temp.macosx-10.3-i386-2.6/Tk/tkImaging.o -L/opt/ 
local/lib -L/usr/local/lib -L/Library/Frameworks/Python.framework/ 
Versions/2.6/lib -L/usr/lib -o build/lib.macosx-10.3-i386-2.6/ 
_imagingtk.so -framework Tcl -framework Tk
ld: in /opt/local/lib/libz.1.dylib, file is not of required  
architecture for architecture ppc
collect2: ld returned 1 exit status
lipo: can't open input file: /var/folders/gO/gOEfKG2kElSEfJYMJH7ijU++ 
+TI/-Tmp-//ccpZdO98.out (No such file or directory)
error: command 'gcc' failed with exit status 1

Is there a fix for this?

Cheers,

Rodrigo Ventura
Institute for Systems and Robotics
(www.isr.ist.utl.pt)
Instituto Superior T?cnico
Lisbon, Portugal



From Chris.Barker at noaa.gov  Fri Oct 24 18:41:01 2008
From: Chris.Barker at noaa.gov (Christopher Barker)
Date: Fri, 24 Oct 2008 09:41:01 -0700
Subject: [Image-SIG] [Pythonmac-SIG] python 2.6 on mac seems to break
	compatibility
In-Reply-To: <op.ujjb1l1xeio6n3@flat.bestley.co.uk>
References: <58519D6E-2A11-41CF-93E3-C0DBE888C62A@isr.ist.utl.pt>
	<op.uji2mrejeio6n3@flat.bestley.co.uk>
	<C63E9D46-5DB2-4C29-9B4C-7982F17FC94A@isr.ist.utl.pt>
	<op.ujjb1l1xeio6n3@flat.bestley.co.uk>
Message-ID: <4901FA9D.1030100@noaa.gov>

Mark Bestley wrote:
> I can see several choices

yup -- it's easy to do all or nothing with macport or fink, though I do
see folks using macports to satisfy the dependencies for some python
extensions -- I wonder how?

> If 1 works good - 2 or 3 would take more time

4) Use the pre-built Universal Framework libs available from:

http://www.kyngchaos.com/wiki/doku.php?id=software:frameworks

I think UnixImageIO and FreeType will get you everything you need.

These are dynamic libs that are built so that they can be used as OS-X
Frameworks, and have a structure so that they fit in well with
traditional unix builds.

you need to do a bit of path manipulation to get the PIL build to find
them, but they work fine.

The downside is that your PIL will then be dependent on them -- which is
not a problem unless you want to distribute your PIL build.

I think it would be a good idea to establish these Frameworks as a
"standard" way to support these libs with MacPython extensions, but I
didn't get much interest when I proposed it, and I haven't had the time
to push it myself.

I edited PIL's setup.py to support using these Frameworks a while back.
I haven't got it tested enough to submit a patch to PIL, but I've
enclosed what I did with this message.

-Chris






-- 
Christopher Barker, Ph.D.
Oceanographer

Emergency Response Division
NOAA/NOS/OR&R            (206) 526-6959   voice
7600 Sand Point Way NE   (206) 526-6329   fax
Seattle, WA  98115       (206) 526-6317   main reception

Chris.Barker at noaa.gov

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From tomek at tmreality.com  Wed Oct 29 16:31:18 2008
From: tomek at tmreality.com (=?utf-8?B?VG9tYXN6IFppZWxpxYRza2k=?=)
Date: Wed, 29 Oct 2008 16:31:18 +0100
Subject: [Image-SIG] PIL license question
Message-ID: <op.ujsld8jxsyiwp8@unk>

Hello!

I'm using PIL in my Python-based web server app.
PIL license: http://www.pythonware.com/products/pil/license.htm
says, that copyright notice should appear in all
PIL copies, and that both that copyright notice and the permission
notice should appear in supporting documentation.

The copyright notice is:

"The Python Imaging Library is

Copyright (c) 1997-2006 by Secret Labs AB
Copyright (c) 1995-2006 by Fredrik Lundh"

Now, I took a look at source files and most of them have slightely  
different
copyright notice, some examples are:

"Copyright (c) 1996-2003 by Fredrik Lundh" only

"Copyright (c) 2004 by Bob Ippolito.
  Copyright (c) 2004 by Secret Labs.
  Copyright (c) 2004 by Fredrik Lundh. "

etc

It's probably ok as this is from original source package,
so if authors put it like that then they know what they're doing,
- but maybe I should put that notice from license text to every source file
to be in full compliance?

Also, I noticed that apt-getted PIL package on Ubuntu doesn't include PIL  
license text
(at least I couldn't find it). Should I put one somewhere around?

Currently it's probably not that important, but in case I have
customer for the software, I'd like to not violate any license.


Best regards,
Tomasz Zieli?ski






From cannon.el at gmail.com  Wed Oct 22 17:12:44 2008
From: cannon.el at gmail.com (Laura & Edward Cannon)
Date: Wed, 22 Oct 2008 08:12:44 -0700
Subject: [Image-SIG] Resizing Tif's to smaller gifs adds pixels
In-Reply-To: <4c7eeb0e0810211122he0950d4mf24486e5ed6b0283@mail.gmail.com>
References: <4c7eeb0e0810211122he0950d4mf24486e5ed6b0283@mail.gmail.com>
Message-ID: <b986b290810220812m202a9a80o732056332326c0f8@mail.gmail.com>

Your problem is that you resized the image twice. Use either the thumbnail
method or the resize method, not both. (personally I would use resize)
edward

2008/10/21 Samuel Mullen <smullen at uclick.com>

> I'm not entirely sure how this group works: if there is a page I'm supposed
> to follow up on or if I should expect an email in reply.  Anyway, here's my
> question.
>
> I'm very new to Python and PIL, I know how to do this stuff in perl and
> ImageMagick, but I'm having issues with Python and PIL.
>
> I need to scale a TIFF image from 1925x588 px to a GIF of 600xnnn px.
>
> I've tried the following code, but it leads to a lot of extra odd colored
> pixels being inserted into the resulting image.
>
> img = "tmp/tmsho20080901.tif"
> im = Image.open("tmp/tmsho20080901.tif")
> w, h = im.size
>
> im.thumbnail((600, h * 600 / w), Image.ANTIALIAS)
>
> newimg = im.resize((600, int(h * (600.0 / w))), Image.ANTIALIAS)
> newimg.save("tmsho20080901.gif")
>
> Using ImageMagick's convert I would do this...
>
> convert -colors 256 -resize 600 -colorspace RGB -black-threshold 100
> -contrast -intent Perceptual tmp/tmsho20080901.tif tmsho20080901.gif
>
> I think it may have something to do with the palette or the number of
> colors alotted for the resulting image, but I'm really not a graphics guy.
>
> Any help on this would be appreciated.
>
> Samuel Mullen
>
> _______________________________________________
> Image-SIG maillist  -  Image-SIG at python.org
> http://mail.python.org/mailman/listinfo/image-sig
>
>
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From ryanlists at gmail.com  Wed Oct 22 21:15:15 2008
From: ryanlists at gmail.com (Ryan Krauss)
Date: Wed, 22 Oct 2008 14:15:15 -0500
Subject: [Image-SIG] problems with PIL 1.1.6 installation
In-Reply-To: <48FF2A83.5030003@hoech.org>
References: <c5b438120810211226x2657297ev50529ac1d972809b@mail.gmail.com>
	<48FF2A83.5030003@hoech.org>
Message-ID: <c5b438120810221215u5f668842v970031305c95e2ec@mail.gmail.com>

I tried re-downloading the exe and using the tarball.

On Wed, Oct 22, 2008 at 8:28 AM, Florian H?ch
<lists+Image_SIG at hoech.org<lists%2BImage_SIG at hoech.org>
> wrote:

> Hello,
>
> the cmd window is curious. The installer should be a GUI application. Maybe
> the exe is broken. Did you try re-downloading?
>
> Regards,
>
> Florian
>
> Ryan Krauss schrieb:
>
>> I am having trouble getting PIL 1.1.6 installed in windows.  The installer
>> shows a cmd window for a split second and dies without giving me any
>> information.  I messed around with the script about registering Python.
>>  Python is registered, but the script doesn't think so because the keys
>> don't match exactly (trialing backslashes and so on or a different order for
>> the elements of PythonPath).
>>
>> I tried installing from the source tarball but I get this message:
>>
>> error: Python was built with Visual Studio 2003;
>> extensions must be built with a compiler than can generate compatible
>> binaries.
>> Visual Studio 2003 was not found on this system. If you have Cygwin
>> installed,
>> you can try compiling with MingW32, by passing "-c mingw32" to setup.py.
>>
>>
>> Trying to pass the -c mingw32 flag leads to the following:
>>
>> C:\ryan\DOWNLO~1\Imaging-1.1.
>> 6>python setup.py install -c mingw32
>> usage: setup.py [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
>>   or: setup.py --help [cmd1 cmd2 ...]
>>   or: setup.py --help-commands
>>   or: setup.py cmd --help
>>
>> error: invalid command 'mingw32'
>>
>> C:\ryan\DOWNLO~1\Imaging-1.1.6>python setup.py install "-c mingw32"
>> usage: setup.py [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
>>   or: setup.py --help [cmd1 cmd2 ...]
>>   or: setup.py --help-commands
>>   or: setup.py cmd --help
>>
>> error: option -m not recognized
>>
>> C:\ryan\DOWNLO~1\Imaging-1.1.6>python setup.py -c mingw32 install
>> usage: setup.py [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
>>   or: setup.py --help [cmd1 cmd2 ...]
>>   or: setup.py --help-commands
>>   or: setup.py cmd --help
>>
>> error: option -c not recognized
>>
>> C:\ryan\DOWNLO~1\Imaging-1.1.6>python setup.py "-c mingw32" install
>> usage: setup.py [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
>>   or: setup.py --help [cmd1 cmd2 ...]
>>   or: setup.py --help-commands
>>   or: setup.py cmd --help
>>
>> error: option -c not recognized
>>
>>
>> How do I either get the exe to run or get the install from source to work
>> with mingw32?
>>
>> Thanks,
>>
>> Ryan
>>
>>
>> ------------------------------------------------------------------------
>>
>> _______________________________________________
>> Image-SIG maillist  -  Image-SIG at python.org
>> http://mail.python.org/mailman/listinfo/image-sig
>>
> _______________________________________________
> Image-SIG maillist  -  Image-SIG at python.org
> http://mail.python.org/mailman/listinfo/image-sig
>
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From spe.stani.be at gmail.com  Wed Oct 29 22:54:54 2008
From: spe.stani.be at gmail.com (Stani)
Date: Wed, 29 Oct 2008 22:54:54 +0100
Subject: [Image-SIG] pil sightings
In-Reply-To: <gae358$74h$1@ger.gmane.org>
References: <gae358$74h$1@ger.gmane.org>
Message-ID: <1225317294.15533.32.camel@blue>

Today was the official launch of the coin and I finally had some time to
blog about it:
http://pythonide.blogspot.com/2008/10/how-to-make-money-with-free-software.html
Have a nice day,
Stani

Op vrijdag 12-09-2008 om 17:51 uur [tijdzone +0200], schreef Fredrik
Lundh:
> this definitely made my day:
> 
>    http://vanrees.org/weblog/archive/2008/09/12/python-calculated-coin
> 
> excellent work, stani.  and congrats for winning!
> 
> (just wish I could figure out how to order one from here ;-)
> 
> </F>
> 
> _______________________________________________
> Image-SIG maillist  -  Image-SIG at python.org
> http://mail.python.org/mailman/listinfo/image-sig


From noboru.uchida.777 at gmail.com  Thu Oct 30 11:49:23 2008
From: noboru.uchida.777 at gmail.com (Noboru Uchida)
Date: Thu, 30 Oct 2008 19:49:23 +0900
Subject: [Image-SIG]  Bug in ImageWin (display.c)
Message-ID: <49099133.6010803@gmail.com>

Excuse my poor English.

Problem: Dib.draw() fails occasionally and raises Overflow Error.

Reason:
In display.c, Window Handles(HWND) and Device Contexts(HDC) are both
declared as "int".
HWND/HDC arguments are parsed by PyArg_ParseTuple(), using format "i".

"i" converts Python integer to plain C integer, but when the value is
greater than 0x7fffffff, it seems to fail in Overflow Error.

The problem is, HWND/HDC *can* take such values.

I think unsigned integer and Format "I" would fix this problem.