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Lab Color Space: Difference between revisions
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(Created page with "== Overview == The Lab color space is a color-opponent space with dimensions L for lightness and a and b for the color-opponent dimensions, based on nonlinearly compressed CIE XYZ color space coordinates. The Lab color space is designed to approximate human vision and so it aspires to perceptual uniformity. The L component closely matches human perception of lightness. == History == The Lab color space was designed by Richard S. Hunter in 1948 as Hunter Lab. It was...") |
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The three parameters in the model represent the lightness of the color (L* = 0 yields black and L* = 100 indicates diffuse white; specular white may be higher), its position between red/magenta and green (a*, negative values indicate green while positive values indicate magenta) and its position between yellow and blue (b*, negative values indicate blue and positive values indicate yellow). The asterisk (*) after L, a and b are part of the full name, to distinguish them from Hunter's Lab. | The three parameters in the model represent the lightness of the color (L* = 0 yields black and L* = 100 indicates diffuse white; specular white may be higher), its position between red/magenta and green (a*, negative values indicate green while positive values indicate magenta) and its position between yellow and blue (b*, negative values indicate blue and positive values indicate yellow). The asterisk (*) after L, a and b are part of the full name, to distinguish them from Hunter's Lab. | ||
[[Image:Detail-146547.jpg|thumb|center|A 3D representation of the Lab color space showing the L, a, and b axes.]] | |||
== Usage == | == Usage == | ||