Imagick
PHP Manual

Imagick::getImageHistogram

(PECL imagick 2.0.0)

Imagick::getImageHistogram — Gets the image histogram

Description

array Imagick::getImageHistogram ( void )

Returns the image histogram as an array of ImagickPixel objects.

Return Values

Returns the image histogram as an array of ImagickPixel objects.

Errors/Exceptions

Throws ImagickException on error.

Imagick
PHP Manual