(PECL imagick 2.0.0)
Force all pixels above the threshold into white
bool Imagick::whiteThresholdImage ( mixed $threshold )
Is like Imagick::ThresholdImage() but force all pixels above the threshold into white while leaving all pixels below the threshold unchanged.
Parameters:
threshold
Is like Imagick::ThresholdImage() but force all pixels above the threshold into white while leaving all pixels below the threshold unchanged.
Returns:
Returns TRUE
on success.
Changelog:
2.1.0
Now allows a string representing the color as a parameter. Previous versions allow only an ImagickPixel object.
Examples:
Imagick::whiteThresholdImage()
<?php function whiteThresholdImage($imagePath, $color) { $imagick = new \Imagick(realpath($imagePath)); $imagick->whiteThresholdImage($color); header("Content-Type: image/jpg"); echo $imagick->getImageBlob(); } ?>
Please login to continue.