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+--- Thread: Shift a range of Grays to a range of Another Color (/Thread-Shift-a-range-of-Grays-to-a-range-of-Another-Color)
Shift a range of Grays to a range of Another Color - Brian.Raila - 03-20-2021
I set out on the task, as described in the Subject Line, to modify an 8 x 8 -points subject. I find that I not only misunderstand those methods, but can't even isolate the pixels of interest.
I have some familiarity with Color Mapping, Color Exchange, Rotation, Levels, Colorize, etc. But I'll be damned if I can operate on ONLY the intended region.
The attached 1) Starting Point shows a Grays 'center dot', which I seek to shift to Greens.
I wish to affect only the region depicted in 2) Intended Selection, selected via Select > By Color.
When 3) Copied, and Pasted as New Image - Alpha blend is evident, which is grand, as the shading is intact. But so is there a shaded background, which I wish to exclude, as depicted in
4a) But so is background, bleeding through - Untitled, and
4b) But so is background, bleeding through - Untitled.png
– – –
I've a feeling I needn't even extract that center-dot as a separate 'frame' to work in, but that would seem irrelevant –– when I get it shifted to Greens, I'll just paste it back in the Starting Point image.
What is it[s] I'm missing about simply selecting a region, to copy-and-paste, for modification. Why is the background haunting me, and won't let go?
Also, any hints on the overall objective are warmly welcomed.
– BR
RE: Shift a range of Grays to a range of Another Color - mholder - 03-20-2021
I suggest you change your workflow to masking layers. I'm not totally sure what you are trying to do, but I think using each color as a layer and then using masks is easier to manipulate than trying to select by color and working in another image.
[attachment=5771]
Here is an example of what I mean:
[attachment=5772]
I just changed the color in the top layer...
RE: Shift a range of Grays to a range of Another Color - Ofnuts - 03-21-2021
(03-20-2021, 10:32 PM)mholder Wrote: I suggest you change your workflow to masking layers. I'm not totally sure what you are trying to do, but I think using each color as a layer and then using masks is easier to manipulate than trying to select by color and working in another image.
Here is an example of what I mean:
I just changed the color in the top layer...
[attachment=5777]
(produced with ofn-perspective-stack)
RE: Shift a range of Grays to a range of Another Color - mholder - 03-21-2021
Hey that's pretty cool!