Imagick::compareImageChannels
(No version information available, might be only in CVS)
Imagick::compareImageChannels — Returns the difference in one or more images
說明
Imagick Imagick::compareImageChannels
( Imagick $image
, int $channelType
, int $metricType
)
Warning
此函式目前沒有參考文件；只有引數列表。
Warning
本函式是實驗性的。這個函式的行為、名稱、和關於此函式的任何其他文件在未來PHP的發行中可能會在不通知的情況下改變。 使用此函式需自行承擔風險。
Compares one or more images and returns the difference image.
參數
- image
-
Imagick object containing the image to compare.
- channelType
-
Provide any channel constant that is valid for your channel mode. To apply to more than one channel, combine channeltype constants using bitwise operators. Defaults to Imagick::CHANNEL_ALL. Refer to this list of channel constants.
- metricType
-
One of the metric type constants.
Return值
Returns TRUE on success.