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Contrast adjustments #24

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qururoland opened this issue Mar 14, 2019 · 0 comments
Open

Contrast adjustments #24

qururoland opened this issue Mar 14, 2019 · 0 comments

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@qururoland
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We could easily have contrast adjustment using

convert testimage.jpg -level 0%,75% lighttestimage.jpg
convert testimage.jpg -level 25%,100% darktestimage.jpg

See http://www.imagemagick.org/Usage/color_mods/#level for more details.
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@qururoland