An Efficient Algorithm for Overcomplete Sparsifying Transform Learning with Signal Denoising

Figure 13

“Barbara.” (a) The original; (b) noisy image with noise (PSNR = 28.13 dB); (c) denoised image using (PSNR = 32.00 dB); (d) denoised image using (PSNR = 32.85 dB).

(a)

(b)

(c)

(d)