(PECL imagick 2.0.0)
Imagick::setImageUnits — Sets the image units of resolution
$units
)Sets the image units of resolution.
units
成功时返回 TRUE
.
salomonsanz at gmail dot com (08-Dec-2008 08:56)
$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
)