Wavelet Domain Multidictionary Learning for Single Image Super-Resolution

<div>The images and their corresponding decomposition images after 1-level DWT (the subimages contain an approximation subband and three detail subbands). (a) The ground HR parrot image and its decomposition images. (b) The bicubic interpolated image and its DWT subband images. (c) The HR image reconstructed by our method and its DWT subband images.</div>

Journal of Electrical and Computer Engineering

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Figure 1

Figure 1: Wavelet Domain Multidictionary Learning for Single Image Super-Resolution 