-define jpeg:extent binary search iterations

Post any defects you find in the released or beta versions of the ImageMagick software here. Include the ImageMagick version, OS, and any command-line required to reproduce the problem. Got a patch for a bug? Post it here.
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username1
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-define jpeg:extent binary search iterations

Post by username1 » 2013-04-12T21:49:07-07:00

-define jpeg:extent appears to be using binary search to locate the optimum quality value in the range of 100 integers, and thus should do so in at most log_2(100)≈7 iterations.

According to -monitor, it frequently produces more than 7 temporary images while working.

Why would more than 7 temporary images ever (i.e. under any circumstances) need to be tested in order to locate the required quality value?

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magick
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Re: -define jpeg:extent binary search iterations

Post by magick » 2013-04-13T05:14:20-07:00

We can reproduce the problem you posted and have a patch in ImageMagick 6.8.4-10 Beta available by sometime tomorrow. Thanks.

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