void threshold(Bitmap& bmp, const threshold_range_t& range, const Paint& in, const Paint& out){
const Interval interval(range.GetInterval());
set_pixels_if_else(bmp, in, out,
[&interval, &bmp](int x, int y){
return interval.Has(color_sum(get_color_raw(bmp, x, y)));
});
}
t_rgba color_moy(unsigned int n, ...)
{
va_list ap;
unsigned int len;
t_rgba newcolor;
len = n;
ft_bzero(&newcolor, sizeof(t_rgba));
if (len <= 0)
return ((t_rgba){0, 0, 0, 0});
va_start(ap, n);
newcolor = color_cpy(va_arg(ap, t_rgba));
while (len > 0)
newcolor = color_sum(newcolor, va_arg(ap, t_rgba));
va_end(ap);
return (color_div(newcolor, n));
}
