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Gmagick::cropimage

(PECL gmagick >= Unknown)

Gmagick::cropimage — Extracts a region of the image

说明

public Gmagick::cropimage(
     int $width ,
     int $height ,
    int $x,
    int $y
): Gmagick

Extracts a region of the image.

参数

width: The width of the crop.
height: The height of the crop.
x: The X coordinate of the cropped region's top left corner.
y: The Y coordinate of the cropped region's top left corner.

返回值

The cropped Gmagick object.

错误／异常

错误时抛出 GmagickException。

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User Contributed Notes 1 note

down

-4

martin at arp242 dot net ¶

12 years ago

A slight note since this is not immediately obvious:
Just as the C CropImage() function, you can specify all zero parameters to get an "autocrop" effect, meaning it will remove all single-color "edges" of an image.

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