The reshape function used in the code below

            file = 'foreman.cif';
            nFrame = 10;
            [fid,message]= fopen(file,'rb');
            nRow = 288;
            nColumn = 352;

          img_y = uint8(fread(fid, nRow * nColumn, 'uchar'));

            for k = 1:nFrame
                ImY = reshape(img_y(:,:,k), nRow, nColumn); 
                ImY = ImY';
                imshow(ImY);

            pause(0.5) 
            end

            fclose(fid);
            disp('OK');

Error is

        Error using reshape

        To RESHAPE the number of elements must not change.

        Error in cifTry (line 31)

        img_y = reshape(img_y, nColumn, nRow);

Answer 1

[Star Strider]

Try:

ImY = reshape(squeeze(img_y(:,:,k)), nRow, nColumn);

or:

ImY = reshape(img_y(:,:,k), nRow, nColumn, []);

depending on what you want to do. No promises, since I can’t run your code.

[Rohit S]

Your first solution :

ImY = reshape(squeeze(img_y(:,:,k)), nRow, nColumn);

Resulted in the same error as above

        Error using reshape

        To RESHAPE the number of elements must not change.

        Error in foremanOne (line 12)

        ImY = reshape(squeeze(img_y(:,:,k)), nRow, nColumn);

The second solution

also throwed error

    Error using  ' 

    Transpose on ND array is not defined.

    Error in foremanOne (line 13)

    ImY = ImY';

Am trying to extract the Y component..Is there any other solution??

[Star Strider]

I don’t have a .cif image to experiment with, and I do not have yours, so I can only suggest untested possibilities.

I would follow Roger’s suggestion, and be certain that ‘nRow’ and ‘nColumn’ are actually the dimensions of your array. The mismatch between them and the dimensions of your data would certainly throw the error you are seeing.

Answer 2

[Roger Stafford]

I would advise you to place the line

   display(size(img_y))

immediately after the line

   img_y = uint8(fread(fid, nRow * nColumn, 'uchar'));

to see if it has the size of dimensions you apparently expect it to have. Your error message suggests that it does not, and if so, you should make the appropriate changes in your code.