Thanks Kendy. Where pixels are fully transparent, sometimes the colour data is stripped to improve compression.Although technically lossy, this is never seen by the end-user. It may have confused your comparison script?Some icons are genuinely altered- placeholders (green X on blue background) are swapped for blank images, etc. I will manually check the icons listed over the next couple of days. I would like to look at the 'Oxygen' icon pack next... Many thanks,Andrew.
> Subject: RE: [Libreoffice] Image Compression Patch > From: ke...@suse.cz > To: ace_d...@hotmail.com > CC: p...@pathawks.com; libreoffice@lists.freedesktop.org > Date: Sun, 24 Oct 2010 22:07:32 +0200 > > Hi Andrew, > > On 2010-10-22 at 11:47 +0100, Andrew C. E. Dent wrote: > > > I've finished the process of lossless optimization for the > > default_images pack. > > The archive is available here: > > http://people.bath.ac.uk/ea2aced/OOo/default_images.zip > > $ du -hs --apparent-size default_images.save/ > 6,3M default_images.save/ > $ du -hs --apparent-size default_images > 4,8M default_images > > Nice! :-) Thank you a lot! > > To check that everything is still the same, I created a script that > checks 2 directories (original icons, and the optimized ones), converts > the png's to xpm's and checks them for differences: > > http://cgit.freedesktop.org/libreoffice/build/tree/bin/check-artwork.sh > > Unfortunately, some of the icons differed - please see the attached > list; I did not commit/push those, only the ones that were the same. > > Can you please check what was wrong? I eg. see that > svx/res/lightfromleft_22.png has originally a transparent background, > but the optimized version has gray background. > > > I'd be most grateful if you could get this checked in to the > > repository. > > Done :-) - with the exception of the attached list. > > Thank you a lot, > Kendy >
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