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Dokumen ini menggunakan Manual laman web PHP Cina Lepaskan
(PECL gmagick >= Unknown)
Gmagick::getsamplingfactors — Gets the horizontal and vertical sampling factor.
Gets the horizontal and vertical sampling factor.
此函数没有参数。
Returns an associative array with the horizontal and vertical sampling factors of the image.
错误时抛出 GmagickException。