Imagick::textureImageImagick::thresholdImage
(PECL imagick 2.0.0)
Imagick::thresholdImage — Changes the value of individual pixels based on a threshold
설명
bool Imagick::thresholdImage
( float $threshold
[, 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.
인수
- threshold
-
- channel
-
반환값
성공시에 TRUE를 반환합니다.
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