A Family of Interrelated Working Spaces???
A Family of Interrelated Working Spaces???
- Subject: A Family of Interrelated Working Spaces???
- From: Rick Gordon <email@hidden>
- Date: Fri, 19 Oct 2001 11:13:21 -0700
Has anyone developed an integrated family of working spaces? Based on my own experiments with assigning various color spaces to an image to alter the saturation and/or gamma to a desired level before making any edits on the file (also recommended by Dan Margulis in his recent article in Electronic Publishing), I would like to have access to a matrix of related color spaces which would:
1) encompass a range of gammas, to allow for the pre-adjustment of overexposed or underexposed images (admittedly this is not hard to create in Photoshop);
2) encompass a range of color gamuts, in fairly even perceptual steps, from very high saturation (to boost desaturated images or handle extremely wide-gamut input files) to a low enough saturation to provide a wide number of values to be addressed in a low-saturation image;
3) In addition to #2, variants could exist that would boost one particular range of color without boosting others proportionately.
I would assume that they would all be matched in their white point. The basic concepts underlying their use would be:
1) to have a graded set of choices for beginning the editing process;
2) that moving between these choices would not affect unwanted color shifts in the image; (this being a main difference from just choosing between various existing, but unrelated color spaces);
3) that by choosing a color space that complements the needs of the image to create the best-looking image possible before doing any editing, less degradation of the image will occur, especially when starting with an 8-bit image.
I'd consider trying to create such a set myself, probably using AdobeRGB (1998) values as a key point in the matrix, but I'm not really sure how to go about determining the values for the primaries in a way that would accomplish the goals listed above.
I recall seeing a post somewhere mentioning some set of spaces, purchasable for about $50, that addressed the stepped variance in saturation, but can't locate the reference.
I welcome any comments or suggestions.
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RICK GORDON
EMERALD VALLEY GRAPHICS AND CONSULTING
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