A Detection Statistic for Random-Valued Impulse Noise

Yiqiu Dong, Raymond Chan, and Shufang Xu

IEEE Trans. Image Processing, 16 (2007), 1112-1120.

Ø Original 512-by-512 images

à Baboon

à Bridge

à Lena

à Pentagon

Ø Comparison of ROAD and ROLD

à The error-bar charts (Fig. 1)

à The detection results for ¡§Lena¡¨ (Fig. 2)

Ø Comparison of image restoration

à PSNR (Table I)

à COR (Table II)

à Restored Lena and Pentagon (Fig. 3)

à Restored Baboon and Bridge (Fig. 4)

Ø Comparison of noise detection

à The number of missed pixels and false-hit pixels (Table III, IV)

Ø Robustness with respect to s

à PSNR of restored images for different s (Fig. 5)