Episode 195: Whose RGB?
Postprocessing digital photos with the GIMP - it's free and powerfull
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vor 12 Jahren
Colo(u)r ist the topic this time. You are in for a ride from the electromagnetic spectrum to the biology of color vision and the infamous Mantis Shrimp. (Link to the fabulous Oatmeal!)
Grassmann’s Law gives a clue how to create a color sensation in the brain by mixing up some wavelengths out of the spectrum. The CIE finally defines what is visible for a “Standard Observer” and Microsoft & HP (sRGB) and Adobe (Adobe RGB) build their color spaces on that foundation.
Elle Stone, Bruce Lindbloom and Cambridge in Colour help along the way, passing a Black Body emitting radiation according to Planck’s Law at 6500K just to give us a White Point.
Then I organize a shootout between sRGB and Adobe RGB – and I’ll stick to sRGB for the forseeable future.
Finally I cover the question of Intent while converting between different color spaces – Perceptual or Relative Colorimetric?
Grassmann’s Law gives a clue how to create a color sensation in the brain by mixing up some wavelengths out of the spectrum. The CIE finally defines what is visible for a “Standard Observer” and Microsoft & HP (sRGB) and Adobe (Adobe RGB) build their color spaces on that foundation.
Elle Stone, Bruce Lindbloom and Cambridge in Colour help along the way, passing a Black Body emitting radiation according to Planck’s Law at 6500K just to give us a White Point.
Then I organize a shootout between sRGB and Adobe RGB – and I’ll stick to sRGB for the forseeable future.
Finally I cover the question of Intent while converting between different color spaces – Perceptual or Relative Colorimetric?
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