Fig. 7

The images reconstructed from the noise-added signals by the TV-GD (a–c), TV-Lp (d–f), Patch-RE (g–i) and patch-TV (j–l). The first, second, and third columns refer to the results for a SNR of 10 dB (a, d, g, j), 5 dB (b, e, h, k), and 0 dB (c, f, i, l), respectively