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GimpRGB —
struct GimpRGB; enum GimpRGBCompositeMode; void gimp_rgb_set (GimpRGB *rgb, gdouble red, gdouble green, gdouble blue); void gimp_rgb_set_alpha (GimpRGB *rgb, gdouble alpha); void gimp_rgb_set_uchar (GimpRGB *rgb, guchar red, guchar green, guchar blue); void gimp_rgb_get_uchar (const GimpRGB *rgb, guchar *red, guchar *green, guchar *blue); void gimp_rgb_add (GimpRGB *rgb1, const GimpRGB *rgb2); void gimp_rgb_subtract (GimpRGB *rgb1, const GimpRGB *rgb2); void gimp_rgb_multiply (GimpRGB *rgb1, gdouble factor); gdouble gimp_rgb_distance (const GimpRGB *rgb1, const GimpRGB *rgb2); gdouble gimp_rgb_max (const GimpRGB *rgb); gdouble gimp_rgb_min (const GimpRGB *rgb); void gimp_rgb_clamp (GimpRGB *rgb); void gimp_rgb_gamma (GimpRGB *rgb, gdouble gamma); gdouble gimp_rgb_intensity (const GimpRGB *rgb); guchar gimp_rgb_intensity_uchar (const GimpRGB *rgb); void gimp_rgb_composite (GimpRGB *color1, const GimpRGB *color2, GimpRGBCompositeMode mode); void gimp_rgba_set (GimpRGB *rgba, gdouble red, gdouble green, gdouble blue, gdouble alpha); void gimp_rgba_set_uchar (GimpRGB *rgba, guchar red, guchar green, guchar blue, guchar alpha); void gimp_rgba_get_uchar (const GimpRGB *rgba, guchar *red, guchar *green, guchar *blue, guchar *alpha); void gimp_rgba_add (GimpRGB *rgba1, const GimpRGB *rgba2); void gimp_rgba_subtract (GimpRGB *rgba1, const GimpRGB *rgba2); void gimp_rgba_multiply (GimpRGB *rgba, gdouble factor); gdouble gimp_rgba_distance (const GimpRGB *rgba1, const GimpRGB *rgba2); #define GIMP_RGB_INTENSITY (r,g,b) #define GIMP_RGB_INTENSITY_RED #define GIMP_RGB_INTENSITY_GREEN #define GIMP_RGB_INTENSITY_BLUE
typedef enum { GIMP_RGB_COMPOSITE_NONE = 0, GIMP_RGB_COMPOSITE_NORMAL, GIMP_RGB_COMPOSITE_BEHIND } GimpRGBCompositeMode;
void gimp_rgb_set (GimpRGB *rgb, gdouble red, gdouble green, gdouble blue);
rgb : | |
red : | |
green : | |
blue : |
void gimp_rgb_set_uchar (GimpRGB *rgb, guchar red, guchar green, guchar blue);
rgb : | |
red : | |
green : | |
blue : |
void gimp_rgb_get_uchar (const GimpRGB *rgb, guchar *red, guchar *green, guchar *blue);
rgb : | |
red : | |
green : | |
blue : |
gdouble gimp_rgb_distance (const GimpRGB *rgb1, const GimpRGB *rgb2);
rgb1 : | |
rgb2 : | |
Returns : |
void gimp_rgb_composite (GimpRGB *color1, const GimpRGB *color2, GimpRGBCompositeMode mode);
color1 : | |
color2 : | |
mode : |
void gimp_rgba_set (GimpRGB *rgba, gdouble red, gdouble green, gdouble blue, gdouble alpha);
rgba : | |
red : | |
green : | |
blue : | |
alpha : |
void gimp_rgba_set_uchar (GimpRGB *rgba, guchar red, guchar green, guchar blue, guchar alpha);
rgba : | |
red : | |
green : | |
blue : | |
alpha : |
void gimp_rgba_get_uchar (const GimpRGB *rgba, guchar *red, guchar *green, guchar *blue, guchar *alpha);
rgba : | |
red : | |
green : | |
blue : | |
alpha : |
void gimp_rgba_subtract (GimpRGB *rgba1, const GimpRGB *rgba2);
rgba1 : | |
rgba2 : |
gdouble gimp_rgba_distance (const GimpRGB *rgba1, const GimpRGB *rgba2);
rgba1 : | |
rgba2 : | |
Returns : |
#define GIMP_RGB_INTENSITY(r,g,b)
This macro calculates the intensity of an RGB value based on coefficients taken from the NTSC analog television standard.
r : | red |
g : | green |
b : | blue |
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