Creates a new image

# Gmagick::newimage

(PECL gmagick >= Unknown)

Gmagick::newimage — Creates a new image

### 说明

public function Gmagick::newimage(
int `$width`,
int `$height`,
string `$background`,
string `$format` = ?
): Gmagick

Creates a new image with the specified background color.

### 参数

`width`
  Width of the new image.
`height`
  Height of the new image.
`background`
  The background color used for this image (as float).
`format`
  Image format.

### 返回值

The Gmagick object.

### 错误／异常

错误时抛出 GmagickException。

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