Gmagick
PHP Manual

Gmagick::normalizeimage

Enhances the contrast of a color image

Description

public Gmagick Gmagick::normalizeimage(int $channel = ?)

Enhances the contrast of a color image by adjusting the pixels color to span the entire range of colors available.

Parameters

channel

Identify which channel to normalize.

Return Values

The Gmagick object.

Errors/Exceptions

Throws an GmagickException on error.