Figure 4From: Enhancing LTW image encoder with perceptual coding and GPU-optimized 2D-DWT transform Subjective comparison of the Woman image encoded at 0.25 bpp. (a) SPIHT (PSNR=29.95 dB). (b) Kakadu (PSNR=30.01 dB). (c) PE_LTW (PSNR=29.11 dB).Back to article page