ofnuts wrote:
You are mistaking Gimp for an array calculator. Nobody thinks of the colors or the luminosity levels in terms of 16-bit numbers. So it's not an oversight, it is a balance between usefulness for the intended users and code maintenance.
Well, I've always known I'm using GIMP in an oddball way (like Tom used the Great Seal of England in the Prince and the Pauper to crack nuts...), and also always suspected my ignorance about its underlying intention was limiting my ability to apply it efficiently. This is one of several times where I've felt the bite.
I've always thought of gray "levels" as a sequence of numbers, from dark to light or vice versa, and that although colors on a color map are arrayed as a 2D surface, when they are "desaturated" (and here I only guess at the proper term), their gray values would map onto a line--perhaps by different algorithms, not another surface. I don't know how else to think of them.
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[2]level is 1-100 by .01, so that's 10K levels.
I don't understand it then; I'm trying to type in, say, '88.88' in the 'L' field of the Change Foreground Color dialog and only the first decimal place is accepted.
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[3]First off, make sure that there is no dithering/super-sampling in the gradients, or, if there is, that it plays in your direction. With dithering I would expect a slightly grainy surface, and without there would be smooth areas with steps in between.
The latter is just what I was experiencing.
Thank you.