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Change the contrast of the image


Imagick::contrastImage

(PECL imagick 2.0.0)

Imagick::contrastImageChange the contrast of the image

Description

bool Imagick::contrastImage ( bool $sharpen )

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.



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