How do I store patches in order?

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Md Farhad Mokter 2019-6-11

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/466581-how-do-i-store-patches-in-order

评论： Md Farhad Mokter 2019-6-13

I am the given code for creating 28*28 patches from a 224*224 image.

fullFileName='sample.bmp';
rgbImage = imread(fullFileName);
imshow(rgbImage);
set(gcf, 'units','normalized','outerposition',[0 0 1 1]);
drawnow;
[rows columns numberOfColorBands] = size(rgbImage)
blockSizeR = 28; % Rows in block.
blockSizeC = 28; % Columns in block.
wholeBlockRows = floor(rows / blockSizeR);
blockVectorR = [blockSizeR * ones(1, wholeBlockRows)];
wholeBlockCols = floor(columns / blockSizeC);
blockVectorC = [blockSizeC * ones(1, wholeBlockCols)];
if numberOfColorBands > 1
    
    ca = mat2cell(rgbImage, blockVectorR, blockVectorC, numberOfColorBands);
else
    ca = mat2cell(rgbImage, blockVectorR, blockVectorC);
end
plotIndex = 1;
numPlotsR = size(ca, 1);
numPlotsC = size(ca, 2);
for r = 1 : numPlotsR
    for c = 1 : numPlotsC
        fprintf('plotindex = %d,   c=%d, r=%d\n', plotIndex, c, r);
        subplot(numPlotsR, numPlotsC, plotIndex);
        rgbBlock = ca{r,c};
        imshow(rgbBlock); 
        
        [rowsB columnsB numberOfColorBandsB] = size(rgbBlock);
        
        caption = sprintf('Block #%d of %d\n%d rows by %d columns', ...
            plotIndex, numPlotsR*numPlotsC, rowsB, columnsB);
        title(caption);
        drawnow;
        
        plotIndex = plotIndex + 1;
    end
end

Now I want to store those patches in the order they are created, so that, for first row there are 8 patches and second row starts with 9th patch. I also want to store those patches with same name as original image with an extension at the end. For example if the image name is sample.bmp, the patches should be named like sample_01, sample_02...like this.

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Image Analyst 2019-6-12

Maybe he wants to save them as new images to disk, so those are filenames, rather than creating variables with that name. Maybe the poster can clarify what "store" means to him.

Md Farhad Mokter 2019-6-13