Figure 4From: Adaptive example-based super-resolution using kernel PCA with a novel classification approachComparison of results (Test image "Lena", 512 × 512 pixels) obtained by using different image enlargement methods. (a) Original HR image. (b) LR image of (a). HR image reconstructed by (c) sinc interpolation, (d) reference [11], (e) reference [27], (f) reference [8], (g) reference [12], (h) reference [28], and (i) the proposed method.Back to article page