Compared with traditional methods, edge-based interpolation algorithm can generate high-resolution images with rare edge artifacts. However complex textured regions produce morphological distortion at the same time, resulting in a HD image looks unnatural. In this paper, we analyze the disadvantages of the best performing edge-based interpolation (DCCI) algorithm and propose a novel adaptive edge-based interpolation algorithm, which use both 2-D texture entropy and directional gradient to eliminate the distortion. It turns out that this method can effectively improve the image quality.
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