-flatten causes gamma-shift
A new bug was introduced sometime between 6.8.9-5 and 6.9.0-0. (Windows 8.1, Q16 binary distribution.)For greyscale inputs, "-flatten" causes a shift in the gamma value, from 1/2.2 to 1.Test...
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6.9.0-1 Beta has this ChangeLog entry:2014-11-20 6.9.0-1 Glenn Randers-Pehrson <glennrp@image...> * Don't override gamma with 1.0 when reading a grayscale PNG image (reference...
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