Imagick::setImageUnits

(PECL imagick 2, PECL imagick 3)

Imagick::setImageUnits — Sets the image units of resolution

说明

public Imagick::setImageUnits(int $units): bool

Sets the image units of resolution.

参数

units

返回值

成功时返回 true。

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euperia at gmail dot com ¶

11 years ago

You should use the PHP Imagick constants to correctly set the Image Units, as described here: 

http://www.php.net/manual/en/imagick.constants.php

RESOLUTION constants

imagick::RESOLUTION_UNDEFINED (integer)
imagick::RESOLUTION_PIXELSPERINCH (integer)
imagick::RESOLUTION_PIXELSPERCENTIMETER (integer)

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salomonsanz at gmail dot com ¶

15 years ago

$source = 'miphoto.jpg';
$imagick = new Imagick($source);
$imagick -> setImageUnits(2); 
//0=undefined, 1=pixelsperInch, 2=PixelsPerCentimeter
$info = $imagick -> identifyImage();
print_r($info);
//ouput
/*
Array 
( 
[units] => PixelsPerCentimeter
)