Digital TV image quality improvement considering distributions of edge characteristic
Sang-Gi Hong, Jae‐Chul Kim, Jonghyun Park · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2003
Sharpness enhancement is widely used technique for improving the perceptual quality of an image by emphasizing its high-frequency component. In this paper, a psychophysical experiment is conducted by the 20 observers with simple linear unsharp masking for sharpness enhancement. The experimental result is extracted using z-score analysis and linear regression. Finally using this result we suggest observer preferable sharpness enhancement method for digital television.