MATLAB: How to extract submatrix from the Main matrix??

MATLABmatrixsub matrix

HI everyone!!

I have a matrix 'Z' with values of '1' and '0'. Mat file is attached.

Now i'd like to extract sub matrices from 'Z' which consists of '1' with their corresponding index values .

example:

Z=size(15,10).

From'Z', i should get output like these three matrices in a loop.

a=Z(3:6,2:6);

b=Z(7:9,6:7);

c=Z(8:15,2);

thanks in advance!

Best Answer

If you have the image processing toolbox:

subnatrices = struct2cell(regionprops(logical(Z), 'Image'))

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regionprops() and request whichever identification mode you prefer, such as BoundingBox or 'PixelIdxList' or 'PixelList' or 'SubarrayIdx'

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