zip compressed PSD Files

[Siddharth Sharma]

Hey,

After reading this i found something interesting Boud :)

http://livedocs.adobe.com/en_US/Photoshop/10.0/help.html?content=WS4DE92D2D-5A4C-42a8-90E1-FD4E912A9BFD.html

http://livedocs.adobe.com/en_US/Photoshop/10.0/help.html?content=WSfd1234e1c4b69f30ea53e41001031ab64-7757.html


Seems like CS3 has the feature for Zip compression
ZIP compression is effective for images that contain large areas of single
color.

Regards
Siddharth
On Sat, Sep 24, 2011 at 5:30 PM, <kimageshop-request at kde.org> wrote:

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> Today's Topics:
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>   1. zip-compressed psd files (Boudewijn Rempt)
>   2. Re: zip-compressed psd files (David REVOY)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Fri, 23 Sep 2011 15:16:51 +0200
> From: Boudewijn Rempt <boud at valdyas.org>
> To: "Krita's developers and users mailing list" <kimageshop at kde.org>
> Subject: zip-compressed psd files
> Message-ID: <201109231516.51648.boud at valdyas.org>
> Content-Type: Text/Plain;  charset="utf-8"
>
> Hi,
>
> Most psd files are RLE compressed, but the specs talk about zip-compressed
> files... Does anyone know how ususual those are, and more importantly, does
> anyone have a version of photoshop that can generate them so Siddharth and
> me have something to test?
> --
> Boudewijn Rempt
> http://www.valdyas.org, http://www.krita.org, http://www.boudewijnrempt.nl
>
>
> ------------------------------
>
> Message: 2
> Date: Fri, 23 Sep 2011 15:44:12 +0200
> From: David REVOY <davidrevoy at gmail.com>
> To: Krita's developers and users mailing list <kimageshop at kde.org>
> Subject: Re: zip-compressed psd files
> Message-ID: <4E7C8D2C.9000007 at gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> hey,
>
> Not sure if CS2 compress them or not, but I generated a test file with
> my Cs2 on wine.
>
> download PSD :
> http://david.revoy.free.fr/forums/krita/2011-09-23_PS2-eye_test.psd.zip
> preview jpg :
> http://img189.imageshack.us/img189/9624/selection001flatarchive.jpg
>
> The test PSD contains a lot of features proper to Photoshop. It's surely
> impossible to open it back in Krita 100% same, but like this it will be
> possible to mesure how it behaves.
> Features of the psd :
> - Group with blending mode ( 4 square on bottom-right are grouped to be
> multiply  )
> - 4 different blending modes inside a group
> - A dynamical text on a layer + a layer dynamic fx ( drop shadow )
> Then on the top a screenshot to see the baked result in Cs2
>
> hope it will help  , I can do other psd , simplier if needed.
>
> -David
>
>
>
>
> On 23/09/2011 15:16, Boudewijn Rempt wrote:
> > Hi,
> >
> > Most psd files are RLE compressed, but the specs talk about
> zip-compressed files... Does anyone know how ususual those are, and more
> importantly, does anyone have a version of photoshop that can generate them
> so Siddharth and me have something to test?
>
>
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> End of kimageshop Digest, Vol 97, Issue 17
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