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Thomasorus/imagemagick-dither.sh

Created April 6, 2020 16:46
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imagemagick-dither.sh
mogrify -path DESTINATIONFOLDER -filter Triangle -define filter:support=2 -thumbnail 1200 -unsharp 0.25x0.08+8.3+0.045 -dither FloydSteinberg -type Grayscale -colors 2 -posterize 136 -quality 82 -define jpeg:fancy-upsampling=off -define png:compression-filter=5 -define png:compression-level=9 -define png:compression-strategy=1 -define png:exclude-chunk=all -interlace none -colorspace sRGB SOURCEFOLDER/*
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See this article for more details: https://www.smashingmagazine.com/2015/06/efficient-image-resizing-with-imagemagick/

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