Imagick::setImageExtent

(PECL imagick 2, PECL imagick 3)

Imagick::setImageExtent — Sets the image size

说明

public Imagick::setImageExtent(int $columns, int $rows): bool

Sets the image size (i.e. columns & rows).

参数

columns
rows

返回值

成功时返回 true。

错误／异常

错误时抛出 ImagickException。

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tim at komta dot com ¶

15 years ago

This function actually sets the width and height of the image (in pixels).



Took me forever to figure this out.

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charles dot p dot hall at gmail dot com ¶

10 years ago

In other graphics systems I have seen this referred to as Canvas size or re-dimensioning. It changes the dimension of the image without re-scaling. Added pixels appear black, removed pixels are simply cropped away.