Lossless Image Compression Based on Multiple-Tables Arithmetic Coding

Table 3

Entropy rates of the difference images.

Image	Entropy rate
Airplane	4.368
Baboon	6.048
Lena	4.527
Toy	3.900
Gold	4.742
Sailboat	4.997
Boat	4.396
Barb	5.442
Pepper	4.390
Girl	4.801