| 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. |
Adds blur filter to image. Optional third parameter to blur a specific channel.
radiusBlur radius
sigmaStandard deviation
channelThe Channeltype constant. When not supplied, all channels are blurred.