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

说明

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.

参数

width: Width of the local neighborhood.
height: Height of the local neighborhood.
offset: The mean offset

返回值

Returns TRUE on success.


	PHP5中文手册 Imagick::adaptiveSharpenImage Imagick::addImage 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 说明 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. 参数 `width` Width of the local neighborhood. `height` Height of the local neighborhood. `offset` The mean offset 返回值 Returns `TRUE` on success. Imagick::adaptiveSharpenImage Imagick::addImage Imagick Image Library PHP Manual