[[色空間>ColorSpace]] > [[HLS]] - [[HSB]] とも呼ぶ - HSLのかいせつ。 -- http://moon.gmobb.jp/renno/cgi/junk.cgi/paintgraphic2/rikutsu/hsl.htm - ImageMagickでHSLとHSV色空間を理解する -- http://smash.nobuto-murata.org/2009/12/imagemagickhslhsv.html * 変換式 [#z91c128c] - rgb2hsv -- http://9ffb2529c70454bd41d0-3fb10b1a8c4ec78f5e672fbc3d967936.r30.cf2.rackcdn.com/rgb2hsv.html V = max(R,G,B) S = (V-min(R,G,B))/V if V<>0, 0 otherwise H = (G - B)/6/S, if V=R; 1/2+(B - R)/6/S, if V=G; 2/3+(R - G)/6/S, if V=B. - [http://www.technotype.net/tutorial/tutorial.php?fileId=%7BImage%20processing%7D§ionId=%7B-converting-between-rgb-and-hsv-color-space%7D Converting between RGB and HSV color space] - https://qiita.com/keim_at_si/items/c2d1afd6443f3040e900 // clamp( abs(fract(h+vec3(0,2,1)/3) * 6 - 3) - 1, 0, 1) return ((clamp(abs(fract(h+vec3(0,2,1)/3.)*6.-3.)-1.,0.,1.)-1.)*s+1.)*v; * 関連 [#rel] - [[色>color]] |