(PECL imagick 2, PECL imagick 3)
Imagick::cycleColormapImage — Displaces an image's colormap
$displace): boolDisplaces an image's colormap by a given number of positions. If you cycle the colormap a number of times you can produce a psychedelic effect.
displaceThe amount to displace the colormap.
成功時(shí)返回 true。
錯誤時(shí)拋出 ImagickException。