fruca(r:r+N-1,c:c+N-1) = A1(r+N+y2:r+y2+N2-1,c+N+x2:c+x2+N2-1)+ temp(r:r+N-1,c:c+N-1);
here, fruca is the reconstructed image. A1, the orginal image and temp,the prediction error added to it. (r:r+N-1,c:c+N-1) is the block size in the image.
MATLAB: I was trying to reconstruct an image using block matching algorithm. When i tried to do so, i have got an reconstructed matrix with non zero elements. But when i tried to plot it using imshow, it appears to be a blank (ful black) image.Kindly help
Computer Vision Toolboxdigital image processingimage acquisitionimage analysisreconstruction
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image = imread('Image.bmp');y = dct(image);help dctor
help dct2in matlab will give you a better idea.
Try this:
grayImage = zeros(480, 640, 'uint8');[rows, columns] = size(grayImage);xCenter = 200;yCenter = 300;sigma = 50;sigmaSquared = sigma^2;amplitude = 255;[X, Y] = meshgrid(1:columns, 1:rows);grayImage = exp(-((X-xCenter).^2 + (Y-yCenter).^2) ./ sigmaSquared);imshow(grayImage, []);axis on
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