I'm working on a website that lets users set their own page colors. They only pick a handful of colors, then I'm offsetting the brightness (converting to hsv, add/subtract v) for things like shaded boxes, lines, faded text, etc. The problem is that in HSV, when you decrease brightness, the perceived saturation decreases (and when you increase brightness, the perceived saturation increases). How can I create these offset colors while making the saturation appear the same as the original color? Is there a formula for this? Should I be using a different color space?
posted by the jam on Feb 18, 2011 - 2 answers

Is "Pantone 3135 cv" outside the RGB colour space? Or: How can I find a Pantone colour in the CIE 1931 chromaticity diagram? [more inside]
posted by arf on Dec 7, 2010 - 5 answers

I would like to find resources, either in print or online, for learning as much as I can about video color space, specifically where it applies to compositing/keying work. [more inside]
posted by shmegegge on May 15, 2006 - 6 answers

Pantone Color Cue 2 (or 1). Anybody tried it? Opinions? Competing Products? [more inside]
posted by HK10036 on May 8, 2006 - 6 answers

Weird color space issues in OS X PhotoshopCS: Why does PhotoshopCS change spaces from RGB/8 to RGB/8/CMYK? What does "RGB/8#" or "RGB/8*" mean? [more inside]
posted by loquacious on Sep 27, 2005 - 4 answers

I'm embarking on the task of archiving my family's collection of several thousand images, from prints, negatives of all sizes, slides and the odd tinplate. I've got what I feel is a good film/slide scanner (Nikon SuperCoolscan 9000 ED) and a half-decent flatbed scanner (Epson Perfection 1650 Photo), and I'm using VueScan on Mac OS X. I've read some of the other AskMeFi posts on similar projects, and I still have three questions about advice for making these the best digital archives they can be, specifically on colorspace, calibration and large negatives (and any other advice welcome): [more inside]
posted by mboszko on Sep 3, 2005 - 6 answers