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