Poor maximum JPEG quality.
Issue #18
new
The maximum JPEG quality is poor comparing to other tools, like ImageMagick or Photoshop.
The colors are lost even at quality=100.
See http://oserv.org/bugs/gd/ for original (.png) / GD(.gd.jpg) / ImageMagick (*.im.jpg) comparison.
Everything was done using maximum quality settings.
Was tested using php and perl, the results are the same.
Comments (4)
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afair jpeg8 and later offers lossless compression.
I did not test yet if the 100 quality goes lossless or if we need an extra option.
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- changed milestone to 2.2.0
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The demo page ( http://oserv.org/bugs/gd/ ) now works again, I re-uploaded it. Please take a look.
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Hurts me too - I'd have expected _no_ artefacts at quality 100.
BTW, is there some "uncompressed" saving of JPEGs? I'd need them only as mjpeg stream for ffmpeg, any saved CPU load would be welcome.