Imagick::randomThresholdImage

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

Imagick::randomThresholdImage — Creates a high-contrast, two-color image

bool Imagick::randomThresholdImage ( float $low , float $high [, int $channel=Imagick::CHANNEL_ALL ] )

Warning

This function is currently not documented; only its argument list is available.

Changes the value of individual pixels based on the intensity of each pixel compared to threshold. The result is a high-contrast, two color image.

Returns TRUE on success.