Designing JPEG quantization tables based on human visual system
Long-Wen Chang, Ching-Yang Wang, S.C. Lee · 1999
In this paper, a quantization table based on the human visual system is designed for the baseline JPEG coder. By incorporating the human visual system with the uniform quantizer, a perceptual quantization table is derived. The quantization table is easy to adapt to the specified resolution for viewing and printing. Experimental results indicate that the HVS-based quantization table can achieve improvements in PSNR about 0.2-2.0 dB without increasing the complexity in both encoder and encoder.