ImageMagick 6.6.7-0 # Handle negative heights for ICO images.
# Recent changes sometimes caused the PNG encoder to select colortype=2 (Truecolor) instead of 0 (Grayscale) for grayscale images. This made the filesize larger than necessary and caused some of the PerlMagick tests to fail.
# The PNG decoder now checks whether the image actually has any transparency when the input file contains an alpha channel or a tRNS chunk. (Reference
http://www.imagemagic...p?f=3&t=17748) # -posterize fails with more than 40 levels (reference
http://www.imagemagic...p?f=3&t=17741).
# Add support for the MacPaint image format.
# Eliminate spurious 'invalid colormap index' exception for 16-bit SGI images (bug report by steven.sittser@fligh...).
# Fix user data length for the CIN image format.
# Use a clone instead of the main image in coders/png.c, so the image can still be used later on without being affected by changes made by the PNG encoder.
# Added PNG:exclude-chunk and PNG:include-chunk defines.
# Revised the -strip option so it behaves as though "-define PNG:include-chunk=none,gama" had appeared on the commandline.
# Avoid writing PNG ancillary chunks in the PNG/MNG/JNG encoder while generating the alpha channel for a JNG image.
# Removed the forced interpolation setting in AcquireResampleFilterThreadSet It prevented user defined interpolation settings for -clut, and possibly other usage.
# Add LZMA compression support to ImageMagick.
# Eliminated a redundant quantization step in the PNG encoder.
# Untangled a confusing but apparently harmless improper loop nesting in the PNG encoder.
# Eliminated redundant "IsGray()" tests from the PNG encoder.
# -format "%[fx:u.p{5,5}]" no longer reports parse exception (reference
http://www.imagemagic...p?f=3&t=17678).
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