83   float hue;        /* normalized to interval [0,6) */  member
101           result->hue = 4.0f + (float) (r - g) / (float) (b - g);  in rgb_to_hsv()
108           result->hue = 0.0f + (float) (g - b) / (float) (r - b);  in rgb_to_hsv()
115           result->hue = 6.0f - (float) (b - g) / (float) (r - g);  in rgb_to_hsv()
125           result->hue = 4.0f - (float) (g - r) / (float) (b - r);  in rgb_to_hsv()
132           result->hue = 2.0f - (float) (r - b) / (float) (g - b);  in rgb_to_hsv()
139           result->hue = 2.0f + (float) (b - r) / (float) (g - r);  in rgb_to_hsv()
146           result->hue = 0; /* arbitrary */  in rgb_to_hsv()
160   float angle1 = color1->hue * 1.04719755f; /* normalize to [0,2π] */  in color_distance()
161   float angle2 = color2->hue * 1.04719755f; /* normalize to [0,2π] */  in color_distance()
174     (color1->hue >= color2->hue  in color_distance()
175      ? (color1->hue - color2->hue >= 3.0f  in color_distance()
176         ? 6.0f + color2->hue - color1->hue  in color_distance()
177         : color1->hue - color2->hue)  in color_distance()
178      : (color2->hue - color1->hue >= 3.0f  in color_distance()
179         ? 6.0f + color1->hue - color2->hue  in color_distance()
180         : color2->hue - color1->hue));  in color_distance()
233 …                 (double)given_hsv.hue, (double)given_hsv.saturation, (double)given_hsv.brightness,  in nearest_color()
234                    (double)best_hsv.hue, (double)best_hsv.saturation, (double)best_hsv.brightness,  in nearest_color()