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。

User Contributed Notes

euperia at gmail dot com 07-Nov-2012 08:20


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)

salomonsanz at gmail dot com 08-Dec-2008 12:56


$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

)