文字
Gmagick::getsamplingfactors
(PECL gmagick >= Unknown)
Gmagick::getsamplingfactors — Gets the horizontal and vertical sampling factor.
说明
public array Gmagick::getsamplingfactors
( void
)
Gets the horizontal and vertical sampling factor.
参数
此函数没有参数。
返回值
Returns an associative array with the horizontal and vertical sampling factors of the image.
错误／异常
错误时抛出 GmagickException。