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
Beschreibung
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.
Parameter Liste
- width
-
Width of the local neighborhood.
- height
-
Height of the local neighborhood.
- offset
-
The mean offset
Rückgabewerte
Returns TRUE on success.