C++ (Cpp) gimp_rgn_iterate1 Beispiele

Beispiel #1

Datei: contrast-normalize.c Projekt: AnonPower/picman

static void
normalize (GimpDrawable *drawable)
{
  NormalizeParam_t param;
  gint x;
  guchar  range;

  param.min = 255;
  param.max = 0;
  param.has_alpha = gimp_drawable_has_alpha (drawable->drawable_id);
  param.alpha = (param.has_alpha) ? drawable->bpp - 1 : drawable->bpp;

  gimp_rgn_iterate1 (drawable, 0 /* unused */, find_min_max, &param);

  /* Calculate LUT */

  range = param.max - param.min;

  if (range != 0)
    for (x = param.min; x <= param.max; x++)
      param.lut[x] = 255 * (x - param.min) / range;
  else
    param.lut[(gint)param.min] = param.min;

  gimp_rgn_iterate2 (drawable, 0 /* unused */, normalize_func, &param);
}

Beispiel #2

Datei: autostretch_hsv.c Projekt: Amerekanets/gimp

static void
autostretch_hsv (GimpDrawable *drawable)
{
  AutostretchData data = {0.0, 1.0, 0.0, 1.0};

  gimp_rgn_iterate1 (drawable, 0 /* unused */, (GimpRgnFunc1) find_max, &data);
  gimp_rgn_iterate2 (drawable, 0 /* unused */, (GimpRgnFunc2) autostretch_hsv_func,
		     &data);
}