Figure 20
From: Adaptive example-based super-resolution using kernel PCA with a novel classification approach
Test image and training images. (a) Target image (101 × 101 pixels) whose lower-left area (50 × 50 pixels) is enlarged as shown in Figure 22. (b) Training image 1 (1600 × 1200 pixels). (c) Training image 2 (1600 × 1200 pixels).