Lines Matching defs:gray
159 int gray = FXRGB2GRAY(r, g, b);
161 int color = (r - gray) * (r - gray) + (g - gray) * (g - gray) + (b - gray) * (b - gray);
162 if (gray < 35 && color < 20) {
165 if (gray > 221 && color < 20) {
176 r = (br - fr) * gray / 255 + fr;
177 g = (bg - fg) * gray / 255 + fg;
178 b = (bb - fb) * gray / 255 + fb;