1-d B-B Spline Polynomial and Hilbert Scan for Graylevel Image Coding - Bezier and Splines in Image Processing and Machine Vision - page 72

(a) (b)

(c) (d)

(e) (f)

Fig. 3.5. Results for Algorithm 1 ((c), (d)) and Algorithm 2 ((e)), (f)) due to raster
scan: (a) Input Lena image; (b) input Girl image; (c) bpp = 1.47, PSNR = 30.574;
(d) bpp = 1.40, PSNR = 28.075; (e) bpp = 1.71, PSNR = 30.020; (f) bpp = 1.539,
PSNR = 30.169.