Imagick::contrastImage
(PECL imagick 2.0.0)
Imagick::contrastImage — Change the contrast of the image
Description
bool Imagick::contrastImage
( bool $sharpen
)
Warning
This function is currently not documented; only its argument list is available.
Enhances the intensity differences between the lighter and darker elements of the image. Set sharpen to a value other than 0 to increase the image contrast otherwise the contrast is reduced.
Parameters
- sharpen
-
The sharpen value
Return Values
Returns TRUE on success.
Errors/Exceptions
Throws ImagickException on error.