Php/docs/imagick.contrastimage
From Get docs
Imagick::contrastImage
(PECL imagick 2, PECL imagick 3)
Imagick::contrastImage — Change the contrast of the image
Description
public Imagick::contrastImage
( bool $sharpen
) : bool
Enhances the intensity differences between the lighter and darker elements of the image. Set sharpen to a value other than 0 to increase the image contrast otherwise the contrast is reduced.
Parameters
sharpen- The sharpen value
Return Values
Returns TRUE on success.
Errors/Exceptions
Throws ImagickException on error.
Examples
Example #1 Imagick::contrastImage()
<?phpfunction contrastImage($imagePath, $contrastType) { $imagick = new \Imagick(realpath($imagePath)); if ($contrastType != 2) { $imagick->contrastImage($contrastType); } header("Content-Type: image/jpg"); echo $imagick->getImageBlob();}?>
