Imagick
PHP Manual

Imagick::whiteThresholdImage

(PECL imagick 2.0.0)

Imagick::whiteThresholdImageForce all pixels above the threshold into white

Описание

bool Imagick::whiteThresholdImage ( mixed $threshold )

Is like Imagick::ThresholdImage() but force all pixels above the threshold into white while leaving all pixels below the threshold unchanged.

Список параметров

threshold

Возвращаемые значения

В случае успешной работы возвращает TRUE.

Список изменений

Версия Описание
2.1.0 Now allows a string representing the color as a parameter. Previous versions allow only an ImagickPixel object.


Imagick
PHP Manual