how to solve the following error in the code?

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Poonam 2013-11-27

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https://ww2.mathworks.cn/matlabcentral/answers/107797-how-to-solve-the-following-error-in-the-code

编辑： dpb 2013-12-1

clc;
close all;
% clear all;
inImg = imread('C:\Users\Poonam\Desktop\MATLAB\R2008a\bin\matlabimage\lotus.jpg');
figure;imshow(inImg);title('Input Image');
s_inImg = size(inImg);
outImg = zeros(s_inImg);
ycbcrOutImg = zeros(s_inImg);
%DCT Parameters
blkSize = 8;
ycbcrInImg = rgb2ycbcr(inImg);
y_inImg = ycbcrInImg(:,:,1);
cb_inImg = ycbcrInImg(:,:,2);
cr_inImg = ycbcrInImg(:,:,3);
I_max = max(max(y_inImg));
%Block-wise Splitting
y_blocks = Mat_dec(y_inImg, blkSize);
s = size(y_blocks);
dctBlks = zeros(s);
for i = 1 : s(3)
    for j = 1 : s(4)
        localBlk = y_blocks(:,:,i,j);
        localdctBlk = dct2(localBlk);
          localdctBlk = localdctBlk ./ 8;
          orig_dc = localdctBlk(1,1);
          %Adjustment of Local Background Illumination
          x = localdctBlk(1,1) / double(I_max);
          mapped_dc = x * (2 - x) * double(I_max);
          %Preservation of Local Contrast
          k = mapped_dc / orig_dc;
          localdctBlk(1,1) = k * localdctBlk(1,1);
          dctBlks(:,:,i,j) = localdctBlk;
      end
  end
dctImg = merge_blocks(dctBlks);
dctImg = dctImg .* 8;
*y_outImg = blkproc(dctImg, [8 8], 'idct2(x)');
ycbcrOutImg(:,:,1) = y_outImg;
ycbcrOutImg(:,:,2) = cb_inImg;
ycbcrOutImg(:,:,3) = cr_inImg;
*  
ycbcrOutImg = uint8(ycbcrOutImg);
rgbOutImg = ycbcr2rgb(ycbcrOutImg);
figure;imshow(rgbOutImg);title('DC Adjustment');

*??? Subscripted assignment dimension mismatch.

Error in ==> colordct at 57 ycbcrOutImg(:,:,1) = y_outImg;* *

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Poonam 2013-11-28

编辑：Poonam 2013-11-28

y_outImg-<112x168 double>, 2D

ycbcrOutImg-<113x170x3 double> 3D

dpb 2013-11-28

编辑：dpb 2013-12-1

So, there's your problem...the two aren't commensurate in size. Now that you see that one is a row longer and two columns wider than the other, do whatever it is that you needs must to correct it. Throw away a row and two columns or pad the smaller or whatever your application should do...

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