Imagick::commentImage
Imagick::compareImageLayers
The Imagick class
PHP Manual

# Imagick::compareImageChannels

(No version information available, might be only in CVS)

Imagick::compareImageChannels — Returns the difference in one or more images

### Описание

Imagick Imagick::compareImageChannels ( Imagick `$image` , int `$channelType` , int `$metricType` )
Внимание

К настоящему времени эта функция еще не была документирована; для ознакомления доступен только список аргументов.

Compares one or more images and returns the difference image.

### Список параметров

`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.

### Возвращаемые значения

Returns `TRUE` on success.

### Errors/Exceptions

Throws ImagickException on error.

Imagick::commentImage
Imagick::compareImageLayers
The Imagick class
PHP Manual