public function crop($cropTop, $cropBottom = 0, $cropLeft = 0, $cropRight = 0)
    {
        $this->resize($this->getWidth(), $this->getHeight(), $cropTop, $cropBottom, $cropLeft, $cropRight);
    }
public function crop($cropTop, $cropBottom = 0, $cropLeft = 0, $cropRight = 0)
    {
        $this->resize($this->getWidth(), $this->getHeight(), $cropTop, $cropBottom, $cropLeft, $cropRight);
    }
public function crop ( $ cropTop , $ cropBottom = 0 , $ cropLeft = 0 , $ cropRight = 0 ) { $ this -> resize ( $ this -> getWidth ( ) , $ this -> getHeight ( ) , $ cropTop , $ cropBottom , $ cropLeft , $ cropRight ) ; }
Crop the frame.

NOTE: Crop values must be even numbers.

@param int $cropTop    Rows of pixels removed from the top of the frame.
@param int $cropBottom Rows of pixels removed from the bottom of the frame.
@param int $cropLeft   Rows of pixels removed from the left of the frame.
@param int $cropRight  Rows of pixels removed from the right of the frame.

@return void
Crop the frame .