MATLAB: How Calculate the number of object(submatrix) in matlab

dr ahmad

number of object =5

a=[0 0 0 0 0 0 0 0 0 0 0;0 0 1 1 1 1 0 1 0 1 1;0 0 1 0 1 0 1 1 1 0 0;0 1 1 1 1 0 1 0 1 0 0;1 0 1 0 1 0 1 1 1 0 0;1 0 1 1 1 1 0 0 0 0 0;0 0 0 0 0 0 1 1 1 0 0;0 1 1 1 1 0 1 0 1 0 0;0 0 1 0 1 0 1 1 1 0 0;0 0 1 1 1 0 0 0 0 0 0;0 1 0 0 0 0 0 0 0 0 0];
b=[1 1 1;1 0 1;1 1 1];

Best Answer

sum(conv2(a,b) == 8)

Related Solutions

MATLAB: Change binary string to decimal

try use this is code:

GGG =[ 0     1     0     0     0     1     0     0     0     0
     0     1     0     0     0     1     0     0     0     0
     1     1     0     0     0     0     0     0     0     0
     0     0     0     0     0     1     0     0     0     0
     0     0     0     1     0     1     0     0     0     1
     0     0     1     0     0     1     0     0     0     0
     0     0     0     1     0     0     0     0     0     0
     0     1     0     1     0     0     0     0     0     1
     1     0     0     1     0     0     0     0     0     0
     0     0     0     0     0     1     0     0     0     1]
out = GGG*2.^(size(GGG,2)-1:-1:0).';

MATLAB: How to place a cell array in another cell array using ‘find’

If I understood correctly:

Ax = randi([0 1], 4, 960);  %Demo data. No way I'm reformating your example to make it valid matlab syntax. 
[row, col] = find(A);
blockidx = discretize(col, 1:60:size(A, 2));
Bx = accumarray([row, blockidx], col, [], @(c) {sort(c).'})

Note: I'm not working on the whole cell array here, just one of these 4x960 matrix as I've not understood what that had to do with the question. Possibly, you just want to above in a loop (or cellfun) operating over each element of the cell array.

Best Answer

Related Solutions

MATLAB: Change binary string to decimal

MATLAB: How to place a cell array in another cell array using ‘find’

Related Question