Imagick
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Imagick::setImageResolution

(PECL imagick 2.0.0)

Imagick::setImageResolution — Sets the image resolution

说明

bool Imagick::setImageResolution ( float $x_resolution , float $y_resolution )

Sets the image resolution.

参数

x_resolution

y_resolution

返回值

成功时返回 TRUE .

错误/异常

错误时抛出 ImagickException .

Imagick
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PHP手册 - N: Sets the image resolution

用户评论:

craig dot fairhurst at nospamyouds dot com (12-Feb-2010 06:12)

Note that any changes to the resolution (-density option) must be made before specifying the file, so construct the object with no file path and then use $object->readImage('path/to/file'); otherwise the density won't change.
Also see Imagick::setResolution.

octave at web dot de (17-Jul-2009 05:27)

This method uses the ImageMagick "-density {$x_resolution}x{$y_resolution}" parameter