Super-Resolution Image Reconstruction Based on Wavelet Transform and Edge-Directed Interpolation
Yingying Zhao, Aidi Wu · Journal of Communication and Computer · 2015
In this paper, a method of super-resolution image reconstruction based on wavelet transform and edge-directed interpolation is put forward.Firstly the low resolution image is decomposed by the stationary wavelet transform; meanwhile, the image obtained from edge-directed interpolation is decomposed by discrete wavelet transform, then the three high frequency sub bands obtained through stationary wavelet transform and discrete wavelet transforms are fused.The fused three high frequency sub bands are denoised.Finally the reconstructed high resolution image is gotten by invert wavelet transform.Experimental results show that this method can improve the quality of the reconstructed image with superior PSNR than the traditional methods.