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#gradients

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Kornel

Linear #gradients appear to have surprisingly sharp transitions at the ends. Every designer had to fight these ramps to have smooth-looking color transitions.

There's an explanation for this effect! The paper has a mathematical model of it (a convolution filter), which in theory could be used in gradient-generators to compute gradients that actually look perfectly linear.

pmc.ncbi.nlm.nih.gov/articles/

PubMed Central (PMC)Mach bands explained by response normalizationMach bands are the illusory dark and bright bars seen at the foot and knee of a luminance trapezoid. First demonstrated by Ernst Mach in the latter part of the 19th century, Mach bands are a test bed not only for models of brightness illusions but ...
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