void gimp_brightness_contrast (gint32 drawable_ID,
gint brightness,
gint contrast);
void gimp_levels (gint32 drawable_ID,
GimpChannelLutType channel,
gint low_input,
gint high_input,
gdouble gamma,
gint low_output,
gint high_output);
void gimp_posterize (gint32 drawable_ID,
gint levels);
void gimp_desaturate (gint32 drawable_ID);
void gimp_equalize (gint32 drawable_ID,
gboolean mask_only);
void gimp_invert (gint32 drawable_ID);
void gimp_curves_spline (gint32 drawable_ID,
GimpChannelLutType channel,
gint num_points,
guint8 *control_pts);
void gimp_curves_explicit (gint32 drawable_ID,
GimpChannelLutType channel,
gint num_bytes,
guint8 *curve);
void gimp_color_balance (gint32 drawable_ID,
GimpTransferMode transfer_mode,
gboolean preserve_lum,
gdouble cyan_red,
gdouble magenta_green,
gdouble yellow_blue);
void gimp_histogram (gint32 drawable_ID,
GimpChannelLutType channel,
gint start_range,
gint end_range,
gdouble *mean,
gdouble *std_dev,
gdouble *median,
gdouble *pixels,
gdouble *count,
gdouble *percentile);
void gimp_hue_saturation (gint32 drawable_ID,
GimpHueRange hue_range,
gdouble hue_offset,
gdouble lightness,
gdouble saturation);
void gimp_threshold (gint32 drawable_ID,
gint low_threshold,
gint high_threshold); |