Invert/negate color?
AndydeCleyre opened this issue · comments
Hello, and thanks!
I don't understand much of color theory, but am trying to figure out where what I think of as "invert" or "negate" fits in to the functions provided by pastel.
My first guess was to rotate 180
, but now think that that's equivalent to complement
, which isn't the negation effect I'm seeking.
Can you provide any insight on color negation/inversion, as it relates to pastel's features?
Thanks!
Are you maybe thinking negative in the sense of https://en.wikipedia.org/wiki/Negative_(photography)? I'm not sure if there is a principle theory behind that. You probably want to turn black to white? So maybe something like complement
, but then also an inversion of the lightness channel?
Yes, I think so. Some examples of the effect I'm after:
- Plasma desktop's effect: Invert
- ImageMagick's option to
convert
:-negate
- GIMP's Colors>Invert
- Krita's Filter>Adjust>Invert
- Photopea's Image>Adjustments>Invert