(PECL imagick 2, PECL imagick 3)
Imagick::whiteThresholdImage — Force all pixels above the threshold into white
public Imagick::whiteThresholdImage ( mixed $threshold ) : bool
Is like Imagick::ThresholdImage() but force all pixels above the threshold into white while leaving all pixels below the threshold unchanged.
threshold
Returns true
on success.
Version | Description |
---|---|
PECL imagick 2.1.0 | Now allows a string representing the color as a parameter. Previous versions allow only an ImagickPixel object. |
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https://www.php.net/manual/en/imagick.whitethresholdimage.php