Error- Subscripted assignment dimension mismatch.

I have divided image into non overlapping blocks using command

      x=imread('im9.bmp');

      x=imresize(x,[256 256]);

      rgbImage=x;x=double(x);

    [rows columns numberOfColorBands] = size(rgbImage)

    fun=@(block_struct) block_struct.data;

    a = blockproc(x,[64 64],fun); 

    %%%%%%%%now to non overlapping blocks

    a1= blkproc(x,[64 64],[2 3],fun);

i get the following error

Subscripted assignment dimension mismatch.

Error in blkproc (line 92) aa(border(1)+(1:ma),border(2)+(1:na)) = a;

Error in news (line 28) a1= blkproc(rgbImage,[64 64],[2 3],fun);

kindly helo to resolve it

Answer 1

[Walter Roberson]

blkproc() and blockproc() are two different routines that process the data fairly differently.

blkproc() has either already been removed from MATLAB or will be removed soon; it is no longer a documented command.

The form of blkproc() you have used is for overlapping blocks, not for the non-overlapping blocks of your comment. The form of blockproc() you have used is for non-overlapping blocks.