How can I find horizontal Seams ?

How can I change the following code from detecting vertical Seams to horizontal ones ?

You can find the global code in the following link : https://fr.mathworks.com/matlabcentral/fileexchange/18089-seam-carving-for-content-aware-image-resizing-gui-implementation-demo

function SeamImg = findSeamImg(x)
% FINDSEAMIMG finds the seam map from which the optimal (vertical running) 
% seam can be calculated. Input is gradient image found from findEnergy.m.
[rows cols] = size(x);
SeamImg = zeros(rows,cols);
SeamImg(1,:) = x(1,:);
for i=2:rows
    for j=1:cols
        if j-1<1
            SeamImg(i,j) = x(i,j)+min([SeamImg(i-1,j),SeamImg(i-1,j+1)]);
        elseif j+1>cols
            SeamImg(i,j) = x(i,j)+min([SeamImg(i-1,j-1),SeamImg(i-1,j)]);
        else
            SeamImg(i,j) = x(i,j)+min([SeamImg(i-1,j-1),SeamImg(i-1,j),SeamImg(i-1,j+1)]);
        end
    end
end

Answer 1

[Voss]

You may not have to change the code at all. Have you tried transposing the input before passing it to the function and then transposing the output you get back? That is:

SeamImg_horizontal = findSeamImg(x.').';