(No version information available, might be only in CVS)
Imagick::whiteThresholdImage — Force all pixels above the threshold into white
This function is currently not documented; only its argument list is available.
Is like Imagick::ThresholdImage() but force all pixels above the threshold into white while leaving all pixels below the threshold unchanged.
Returns TRUE on success.
|2.1.0||Now allows a string representing the color as a parameter. Previous versions allow only an ImagickPixel object.|