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OptiPNG is amazing, but there is one feature request I have:
I design websites, and gAMA use is inconsistent, well, most noticibly with Internet Explorer, causing problems in it's display. I'd love to see a switch:
-web
That would remove the gAMA, cHRM, iCCP, sRGB, and pHYs chunks from the PNG file, It makes it a one-step solution to fix the problem, as well as further reducing size.
2009-10-20 02:02:41 UTC in OptiPNG
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I should be more specific -- according to http://www.maximumcompression.com/data/jpg.php (not sure how up to date it is), PAQ8PX with switch -7 reduces JPGs by almost 24%.
While we're on it ... OptiPNG ( http://optipng.sourceforge.net/ ) is another peice of OSS whose inclusion via a similar checkboxing system could increase 7-zip's compression ratios.
2009-10-20 01:51:36 UTC in 7-Zip
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Hi Igor,
Thanks for 7-zip! I am an unabashed evangelizer :-D
However, for JPGs, there are a few compression schema that work better than 7-zip. I might suggest the PAQ/ZPAQ library, which is released under the GPL: http://mattmahoney.net/dc/
Using that as the default algorithm for at least JPGs would probably result in a sizeable compression increase.
Potentially, to ensure...
2009-10-20 01:40:11 UTC in 7-Zip
