(PECL gmagick >= Unknown)
Gmagick::setimagegreenprimary — Sets the image chromaticity green primary point
public Gmagick::setimagegreenprimary(float $x, float $y): Gmagick
Sets the image chromaticity green primary point.
xThe chromaticity green primary x-point.
yThe chromaticity green primary y-point.
The Gmagick object.
Throws an GmagickException on error.
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https://www.php.net/manual/en/gmagick.setimagegreenprimary.php