Enhances the contrast of a color image

# Gmagick::normalizeimage

(PECL gmagick >= Unknown)

Gmagick::normalizeimage — Enhances the contrast of a color image

### Description

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

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.

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