On Tue, Apr 25, 2017 at 6:47 PM, Ken Pettit <[email protected]> wrote:
> Hi John, > > Yes, it does compression. Runs of pixels that are the same color (either > on or off) are compressed into either one, two or three bytes depending on > the length of the run. > > I did some tests taking a PBM binary file compressed with WinZip and > compared it with the compression in AP. In some cases, AP is actually > better (small images ... no dictionary needed). On larger images, WinZip > was only 7-8% better on average. > > Ken > > Very nice. You probably told me before but it's been a while. -- John.
