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Table 1 Image reconstruction performance comparison (SSIM) of the proposed method and the previously reported methods

From: Adaptive example-based super-resolution using kernel PCA with a novel classification approach

Test image LR image Sinc [11] [27] [8] [12] [28] Proposed method
Lena 0.7114 0.8542 0.8029 0.8356 0.8289 0.8530 0.8443 0.8708
Peppers 0.7206 0.8449 0.7935 0.8229 0.8181 0.8406 0.8283 0.8664
Goldhill 0.5987 0.7488 0.7095 0.7673 0.7610 0.7642 0.7594 0.8116