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Imagelobe 5.5 2
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Imagelobe 5.5 Weeks
| % |
| % Test code for Super-Resolution Convolutional Neural Networks (SRCNN) |
| % |
| % Reference |
| % Chao Dong, Chen Change Loy, Kaiming He, Xiaoou Tang. Learning a Deep Convolutional Network for Image Super-Resolution, |
| % in Proceedings of European Conference on Computer Vision (ECCV), 2014 |
| % |
| % Chao Dong, Chen Change Loy, Kaiming He, Xiaoou Tang. Image Super-Resolution Using Deep Convolutional Networks, |
| % arXiv:1501.00092 |
| % |
| % Chao Dong |
| % IE Department, The Chinese University of Hong Kong |
| % For any question, send email to ndc.forward@gmail.com |
| % |
| close all; |
| clear all; |
| %% read ground truth image |
| im = imread('Set5/butterfly_GT.bmp'); |
| %im = imread('Set14zebra.bmp'); |
| %% set parameters |
| up_scale = 4; |
| model = 'model/9-5-5(ImageNet)/x4.mat'; |
| % up_scale = 3; |
| % model = 'model9-3-5(ImageNet)x3.mat'; |
| % up_scale = 3; |
| % model = 'model9-1-5(91 images)x3.mat'; |
| % up_scale = 2; |
| % model = 'model9-5-5(ImageNet)x2.mat'; |
| % up_scale = 4; |
| % model = 'model9-5-5(ImageNet)x4.mat'; |
| %% work on illuminance only |
| if size(im,3)>1 |
| im = rgb2ycbcr(im); |
| im = im(:, :, 1); |
| end |
| im_gnd = modcrop(im, up_scale); |
| im_gnd = single(im_gnd)/255; |
| %% bicubic interpolation |
| im_l = imresize(im_gnd, 1/up_scale, 'bicubic'); |
| im_b = imresize(im_l, up_scale, 'bicubic'); |
| %% SRCNN |
| im_h = SRCNN(model, im_b); |
| %% remove border |
| im_h = shave(uint8(im_h *255), [up_scale, up_scale]); |
| im_gnd = shave(uint8(im_gnd *255), [up_scale, up_scale]); |
| im_b = shave(uint8(im_b *255), [up_scale, up_scale]); |
| %% compute PSNR |
| psnr_bic = compute_psnr(im_gnd,im_b); |
| psnr_srcnn = compute_psnr(im_gnd,im_h); |
| %% show results |
| fprintf('PSNR for Bicubic Interpolation: %f dBn', psnr_bic); |
| fprintf('PSNR for SRCNN Reconstruction: %f dBn', psnr_srcnn); |
| figure, imshow(im_b); title('Bicubic Interpolation'); |
| figure, imshow(im_h); title('SRCNN Reconstruction'); |
| %imwrite(im_b, ['Bicubic Interpolation' '.bmp']); |
| %imwrite(im_h, ['SRCNN Reconstruction' '.bmp']); |
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