MATLAB: How to apply a histogram to each cell

Question

We split the 256×256 image into a 10×10 patch using the mat2cell function.

How do I apply a histogram to each cell?

Histogram functions are generation functions, not built-in functions.

For example, gradientHistogram (image, numBin);

Answer 1

Use loop or cellfun.

A{1} = rand(10,1) ;
A{2} = rand(20,1) ;
H1 = cellfun(@hist,A,'un',0) ;
H2 = cell(length(A),1) ;
for i = 1:length(A)
    H2{i} = hist(A{i});
end