please, how can I divide an image into 2 vertical parts from the colomn number 145?

%%it gives me the horizontal division nand I want the vertical one from a known colomn, [r, c] = size(binB); topHalf = imcrop(binB, [1, 2, r, floor(c/2)]); bottomHalf = imcrop(binB, [2, ceil(c/2), r, floor(c/2)]);

Answer 1

[Image Analyst]

First of all, your third parameter is supposed to be the width in columns, and the fourth parameter is supposed to be the height in rows. You have them switched.

Try it this way (using indexing) instead:

[rows, columns] = size(binB);
middleRow = floor(rows/2);
topHalf = binB(1:middleRow, :);
bottomHalf = binB(middleRow+1:end, :);

[Abdou dgm]

the same problem it gives me the horizontal division

[Image Analyst]

Well I don't know what you mean. It divides it vertically so that you have two short and wide shapes - the top half and the bottom half. If you really want the left half and the right half, just switch the indexes. You know that the first index is the row and the second is the column, right? So just do

[rows, columns] = size(binB);
middleCol = floor(columns/2);
leftHalf = binB(:, 1:middleCol);
rightHalf = binB(:, middleCol+1:end);

[Abdou dgm]

I'm a beginer with matlab, but now is working, thank you sir for your help %