(PECL imagick 3)
Imagick::getColorspace — Gets the colorspace
public Imagick::getColorspace ( ) : int
Gets the global colorspace value. This method is available if Imagick has been compiled against ImageMagick version 6.5.7 or newer.
Returns an integer which can be compared against COLORSPACE constants.
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https://www.php.net/manual/en/imagick.getcolorspace.php