HaruImage::setMaskImage
(PECL haru:0.0.1)
HaruImage::setMaskImage — Set the image mask
Description
   bool HaruImage::setMaskImage
    ( object $mask_image
   )
  Sets the image used as image-mask. It must be 1bit gray-scale color image.
Parameters
- mask_image
- 
      A valid HaruImage instance. 
Return Values
Returns TRUE on success.
Errors/Exceptions
Throws HaruException on error.