Returns statistics for each channel in the image

# Imagick::getImageChannelStatistics

(PECL imagick 2, PECL imagick 3)

Imagick::getImageChannelStatistics — Returns statistics for each channel in the image

### 说明

public function Imagick::getImageChannelStatistics(): array

Returns statistics for each channel in the image. The statistics include the channel depth, its minima and maxima, the mean, and the standard deviation.

### 参数

此函数没有参数。

### 返回值

成功时返回 `true`。

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