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How to solve this error?
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Bajdar Nour
on 12 Oct 2019
Commented: Bajdar Nour
on 12 Oct 2019
function COM = jcoMatrix(I1) %Declare the function
% coMatrix : co-occurrence matrix
d_i = 0;
d_j = 1;
COM = zeros(256, 256); % Declare the size of the CCM
for i = 1:(size(I1, 1) - d_i)
for j = 1:(size(I1, 2) - d_j)
index_i = I1(i, j) + 1;
index_j = I1(i + d_i, j + d_j) + 1;
COM(index_i, index_j) = COM(index_i, index_j) + 1;
% To calculate the repeatition of pixel value so to generate CCM
end
end
Attempted to access COM(1.01408,2); index must be a positive integer or logical. Error in jcoMatrix (line 13)
COM(index_i, index_j) = COM(index_i, index_j) + 1;
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Accepted Answer
KALYAN ACHARJYA
on 12 Oct 2019
Edited: KALYAN ACHARJYA
on 12 Oct 2019
Save the function file in different MATLAB script and ensure that filename must be same as function name, that is jcoMatrix.m
function COM = jcoMatrix(I1) %Declare the function
% coMatrix : co-occurrence matrix
d_i = 0;
d_j = 1;
COM = zeros(256, 256); % Declare the size of the CCM
for i = 1:(size(I1, 1) - d_i)
for j = 1:(size(I1, 2) - d_j)
index_i = I1(i, j) + 1;
index_j = I1(i + d_i, j + d_j) + 1;
COM(index_i, index_j) = COM(index_i, index_j) + 1;
% To calculate the repeatition of pixel value so to generate CCM
end
end
Next call the function from command window or another main MATLAB script by passing input argument I1 (matrix here)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/242343/image.png)
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