(PECL gmagick >= Unknown)
Gmagick::mapimage — Replaces the colors of an image with the closest color from a reference image
Replaces the colors of an image with the closest color from a reference image.
gmagick
The reference image
dither
Set this integer value to something other than zero to dither the mapped image
Gmagick object
Вызывает GmagickException при ошибке.