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.
Examples
Example #1 Imagick::contrastImage
<?php function contrastImage($imagePath, $contrastType) { $imagick = new \Imagick(realpath($imagePath)); if ($contrastType != 2) { $imagick->contrastImage($contrastType); }