Legacy ImageMagick Discussions Archive

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Your input has only 5 shades of gray, from 1 to 5 out of 255, so I auto-levelled to widen the range to 0 to 100%, then supplied a clut with 5 values.

Instead, I could have omitted the auto-level, and supplied a clut with 256 values.


Thank you for your reply @snibgo. This particular source ...

I'm pretty new to image processing and ImageMagick, but I couldn't find a straightforward solution to my problem after some searching. I still don't have an understanding how the Color LookUp Table [CLUT] works in ImageMagick.

I have source image:
https://i.stack.imgur.com/jLHjz.png

And I want ...