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Questions that include methods for creating, editing, manipulating and enhancing images. Ask anything related to the design of images.

2 votes
1 answer
281 views

How to create a PNG that looks different depending on if the background is black or white

Apparently you need to adjust the color levels of whatever two images you want to use to "satisfy the relative lightness condition a ≤ b" but it doesn't actually say how to do that. …
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