Sobotka: Why GIMP is inadequate
Posted Jan 12, 2011 8:38 UTC (Wed) by gowen
In reply to: Sobotka: Why GIMP is inadequate
Parent article: Sobotka: Why GIMP is inadequate
Consider, for example, a gradient from (0.5f, 0.5f, 0.5f) to (0.6f, 0.6f, 0.6f), or in 8bit hex terms, from $808080 to $9A9A9A. That's a 27 step gradient.
It's a 27 step gradient over relatively small change of colour intensity. He's shown a 50 step gradient from WHITE to BLACK. That's not
the same thing you are describing. All quantization involves introducing steps -- the question is to determine when those steps are perceptible, and when they are not. Show that 50 steps is too few from 0xFF to 0x00 does not tell us anything about what step size is perceptible from 0x80 to 0x9A.
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