alt Hacker NewsYou can do something similar in GIMP:
1) Colors > Components > Decompose > LAB
2) For the layers of the A/B (chroma) channels, Colors > Levels > "Auto Input Levels" (maximize the contrast), and move the mid point to the median.
3) Colors > Components > Compose > LAB
Replies
MisterTea • yesterday at 6:54 PM
Can you explain 2 a bit more? I see the Auto input levels but unsure what you mean by "move the midpoint to the median."
The result I got for the original mars image was a washed out red image with some yellow around the craters.
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That is very clever, thank you. Didn't even consider that yes, the contrast of the A/B channels is also the spread across the colour spectrum. Shows how little I use LAB... thanks for the reminder.