Purpose : Clip a rectangular region of an image file.

Format:     CLIP   filename    x1   y1   x2   y2   <output filename>

Notes:      Parameters  x1  and  y1 are the upper left corner coordinates,  x2  and  y2  are the lower right corner coordinates of the rectangular region to clip.  The  output filename  parameter is optional,  if this is omitted then  filename  is replaced with the new reduced sized image.

See Also:  PASTE   SCALE