Optimized Architecture Using a Novel Subexpression Elimination on Loeffler Algorithm for DCT-Based Image Compression

Table 7

PSNR (dB) versus bpp evaluation.

bpp	0.64	1.26	2.0	2.87
Lena	25.38	28.23	30.26	33.24
Mandrill	20.84	25.27	28.20	29.36
Peppers	27.92	30.15	33.53	34.86
Goldhill	27.51	29.22	32.43	33.12