# Gmagick::solarizeimage

(PECL gmagick >= Unknown)

Gmagick::solarizeimage — Applies a solarizing effect to the image

### 说明

public Gmagick::solarizeimage(int `$threshold`): Gmagick

Applies a special effect to the image, similar to the effect achieved in a photo darkroom by selectively exposing areas of photo sensitive paper to light. Threshold ranges from 0 to QuantumRange and is a measure of the extent of the solarization.

### 参数

`threshold`
  Define the extent of the solarization.

### 返回值

The Gmagick object.

### 错误／异常

错误时抛出 GmagickException。

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