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berarma/optimize_images.md

Last active January 10, 2020 10:59
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optimize_images.md

Optimize JPEG/PNG images for the web using ImageMagick

convert -filter Triangle -define filter:support=2 -thumbnail %target-width% -unsharp 0.25x0.08+8.3+0.045 -dither None -posterize 136 -quality %jpeg-quality% -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 original-image.jpg optimized-image.jpg

%target-width%: Width of the final image in pixels. %jpeg-quality%: JPEG quality setting (0-100).

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