Histogram Equalization For Specific row and column

if  I have to apply histogram equalization for  second row and third column  , Following is the code i found from  official site so Please can You guide me how to   Apply Histogram Equalization For  second row and  3rd  column

J = histeq(I,hgram) J = histeq(I,n) [J, T] = histeq(I) [gpuarrayJ, gpuarrayT] = histeq(gpuarrayI,___) newmap = histeq(X, map, hgram) newmap = histeq(X, map) [newmap, T] = histeq(X,___)

Answer 1

[Image Analyst]

You can extract those rows and columns like this:

row2 = I(2,;);
column3 = I(:, 3);

Then pass those into histeq(), though I don't know what the purpose of doing histogram equalization is for just one row and one column, or actually, at all - it's almost never needed at all and gives harsh looking images.