Desired Image Compression algorithms in scikit-image

[Ankit Agrawal]

On Wed, Mar 19, 2014 at 4:41 AM, Ralf Gommers <ralf.gommers at gmail.com>wrote:

>
>
>
> On Tue, Mar 18, 2014 at 5:20 PM, Stuart Mumford <stuart at mumford.me.uk>wrote:
>
>> As point of note, if you are looking into doing Python based JPEG200 you
>> should look over the glymur project (
>> https://github.com/quintusdias/glymur) which is Python wrappers around
>> the OpenJPEG C lib. If you can code the compression algorithm in Python,
>> that library might provide you some framework for dealing with the meta
>> data and other things(which are in Python in glymur), save you re-inventing
>> the wheel.
>>
>
> I just had a look at Glymur, and that's the kind of code that's useful but
> you really don't want to write. I suggested JPEG 2000 simply because it's a
> well-known wavelet based algorithm. The scope of Ankit's GSoC should be
> *algorithms* imho; dealing with file formats, metatdata, etc. would be a
> huge time sink and out of scope for both scipy and scikit-image I'd think.
>

I concur with Ralf. IMHO, the complete implementation of JPEG 2000 is not
something I can manage completely in two and a half weeks. Meanwhile, I am
going through the most cited
paper<https://www.math.purdue.edu/~lucier/692/DJL-image-compression.pdf>that
I got in this area 'Image Compression Through Wavelet Transform
Coding', which seems big too. I think maybe Josh has knowledge about
wavelet based compression techniques?


>
>
>> SunPy has had a lot of contact from the Glymur dev he is a helpful guy.
>>
>> Stuart
>>
>>
>> On 18 March 2014 16:16, Stéfan van der Walt <stefan at sun.ac.za> wrote:
>>
>>> www.jpeg.org/jpeg2000guide/papers/madamsjp2k.pdf
>>>
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