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Creates a high-contrast, two-color image


Imagick::randomThresholdImage

(PECL imagick 2.0.0)

Imagick::randomThresholdImageCreates a high-contrast, two-color image

Description

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

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. This method is available if Imagick has been compiled against ImageMagick version 6.2.9 or newer.

Parameters

low

The low point

high

The high point

channel

Provide any channel constant that is valid for your channel mode. To apply to more than one channel, combine channeltype constants using bitwise operators. Refer to this list of channel constants.

Return Values

Returns TRUE on success.



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