(PECL imagick 2, PECL imagick 3)
Imagick::getImageBluePrimary — Returns the chromaticy blue primary point
Returns the chromaticity blue primary point for the image.
xThe chromaticity blue primary x-point.
yThe chromaticity blue primary y-point.
Array consisting of "x" and "y" coordinates of point.
错误时抛出 ImagickException。