1-d B-B Spline Polynomial and Hilbert Scan for Graylevel Image Coding - Bezier and Splines in Image Processing and Machine Vision - page 78

(a) (b)

(c) (d)

(e) (f)

Fig. 3.9. Comparison of Girl image: (a) Algorithm 1: bpp = 1.09, PSNR = 28.999;
(b) Kamata: bpp = 1.01, PSNR = 30.361; (c) Algorithm 2: bpp = 1.07, PSNR =
30.436; (d) Algorithm 1: bpp = 0.60, PSNR = 27.346; (e) Kamata: bpp = 0.68,
PSNR = 28.442; (f) Algorithm 2: bpp = 0.68, PSNR = 28.811.