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(PECL imagick 2, PECL imagick 3)
Imagick::getImageWhitePoint — Returns the chromaticity white point
Returns the chromaticity white point as an associative array with the keys "x" and "y".
此函数没有参数。
Returns the chromaticity white point as an associative array with the keys "x" and "y".
错误时抛出 ImagickException。
