A New Fast Algorithm for Constrained Four-Directional Total Variation Image Denoising Problem

Figure 3

Results on the “Moon” image. (a) Original image; (b) noisy image, PSNR = 24.82 dB; (c) denoised image with GP, PSNR = 29.35 dB; (d) denoised image with FGP, PSNR = 29.35 dB; (e) denoised image with TGV, PSNR = 30.08 dB; (f) denoised image with NLTV, PSNR = 30.23 dB; (g) denoised image with 4-GP, PSNR = 30.35 dB; (h) denoised image with 4-FGP, PSNR = 30.36 dB.

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