Original EINSTEIN:  

                                         Quantized EINSTEIN with:
error feedback high pass sense*.  error feedback low pass sense*.  no error feedback.
   
 


                                             Quantization Error:

                            Entropy = 1.6493 bits/pixel in all three cases.

   SNR = 9.9646 dB                 SNR = 11.5078 dB              SNR = 13.9690 dB
   



 * First order error feedback was applied to this image.