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Hijacking this comment to ask a question... so is this guide saying that regular RGB at 100% intensity (no transformation) cannot represent every single color?
by Exuma 8y ago
Hijacking this comment to ask a question... so is this guide saying that regular RGB at 100% intensity (no transformation) cannot represent every single color? This is a bit confusing to me, as I thought it could. I was always under the impression that RGB values could represent all colors that can be represented on a monitor
- deleted 8y ago[deleted]
- jacobolus 8y agoYes, often the gamut for a computer display and the gamut of a particular working color space (like sRGB) intersect each-other, with some colors in each gamut which are outside the other. If you use a linear representation of RGB coordinates, and allow values less than 0 or greater than 1, then you can represent any conceivable color. But most image formats do not support values outside the [0, 1] range. If you have an image in one color space, and you want to convert it to another color space (e.g. for showing on your display or printing) there are many possible gamut mapping algorithms you might use to optimize the results according to various criteria. Here is a 300 page book about some of the possibilities, https://www.wiley.com/en-us/Color+Gamut+Mapping-p-9780470030325 https://www.wiley.com/en-us/Color+Gamut+Mapping-p-9780470030...
- Exuma 8y agoGood lord that is a large technical book about one topic O_O