[Image-SIG] PIL - problem with crop()
eismb at hotmail.com
Tue Apr 28 05:47:23 CEST 2009
Thank you, Kevin - the image got much better. JPG accepts the "quality" tag (ex.: quality=95). Still, as someone pointed out, it seems I should try other formats like TIFF or PNG.
CC: image-sig at python.org
From: kevin at cazabon.com
To: eismb at hotmail.com
Subject: Re: [Image-SIG] PIL - problem with crop()
Date: Mon, 27 Apr 2009 06:58:36 -0400
are you setting the resolution when re-saving as a PDF in PIL? That would explain the scaling issue, and likely the quality too.
PIL now supports resolution settings for most common file formats - add a dpi=300 tag when saving, for example:
On 26 Apr 2009, at 16:53, Eduardo Ismael wrote:Hi!
I have a bunch of .jpg images of 2866 x 4047. When I right-click on them and use the "Convert to Adobe PDF" option from Acrobat, an Acrobat window opens showing the document with great quality and zoom of 121% - and if I zoom down to 100%, it looks like the original quality.
However, I would like to crop the bottom of all pages before conveting to PDF, so i get back to the original and use "im.crop((0, 0, 2866, 3760))".
Now, if I use the method above to convert to PDF, the PDF will open at 21,9% - the image got much bigger! - and if I zoom up to 100%, it gets awful. I understand PIl is not only cropping the image, but also affecting its quality.
Any suggestions on how to avoid that?
Here is the complete script:
import os, Image
preCropFolder = "C:\\PDF\\preCropFolder"
postCropFolder = "C:\\PDF\\postCropFolder"
inputImages = os.listdir(preCropFolder)
for file in inputImages:
eachImage = preCropFolder + "\\" + file
im = Image.open(eachImage)
im = im.crop((0, 0, 2866, 3760)) # original is 2866 x 4047
eachImage = postCropFolder + "\\" + file
Quer saber qual produto Windows Live combina melhor com o seu perfil? Clique aqui e descubra! _______________________________________________
Image-SIG maillist - Image-SIG at python.org
Emoticons e Winks super diferentes para o Messenger. Baixe agora, é grátis!
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the Image-SIG