Medical Image Compression Based on Vector Quantization with Variable Block Sizes in Wavelet Domain

Figure 3

Comparison of the decoded images of the energy codebook and the random codebook at compression ratio around 10.

(a)  Original liver image

(b) Decoded images encoded by the energy codebook

(c) Decoded images encoded by the random codebook

(d) Original brain image

(e) Decoded images encoded by the energy codebook

(f) Decoded images encoded by the random codebook