void
DjVuPalette::quantize(GPixmap &pm)
{
{ // extra nesting for windows
for (int j=0; j<(int)pm.rows(); j++)
{
GPixel *p = pm[j];
for (int i=0; i<(int)pm.columns(); i++)
index_to_color(color_to_index(p[i]), p[i]);
}
}
}
int
DjVuPalette::compute_pixmap_palette(const GPixmap &pm, int ncolors, int minboxsize)
{
// Prepare histogram
histogram_clear();
{ // extra nesting for windows
for (int j=0; j<(int)pm.rows(); j++)
{
const GPixel *p = pm[j];
for (int i=0; i<(int)pm.columns(); i++)
histogram_add(p[i], 1);
}
}
// Compute palette
return compute_palette(ncolors, minboxsize);
}