(no version information, might be only in CVS)
Imagick::blackThresholdImage -- Forces all pixels below the threshold into black| Warning |
This function is currently not documented; only the argument list is available. |
| Warning |
This function is EXPERIMENTAL. The behaviour of this function, the name of this function, and anything else documented about this function may change without notice in a future release of PHP. Use this function at your own risk. |
Is like MagickThresholdImage() but forces all pixels below the threshold into black while leaving all pixels above the threshold unchanged.