Imagick Image Library
PHP Manual

Imagick::adaptiveThresholdImage

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

Imagick::adaptiveThresholdImage — Selects a threshold for each pixel based on a range of intensity

Описание

bool Imagick::adaptiveThresholdImage ( int $width , int $height , int $offset )

Selects an individual threshold for each pixel based on the range of intensity values in its local neighborhood. This allows for thresholding of an image whose global intensity histogram doesn't contain distinctive peaks.

Список параметров

width

Width of the local neighborhood.

height

Height of the local neighborhood.

offset

The mean offset

Возвращаемые значения

Returns TRUE on success.


Imagick Image Library
PHP Manual