How can I find all zeros in a 2d matrix and change those values by interpolating with the closest available values ?

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For example, A=

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Image Analyst
Image Analyst il 8 Giu 2017
You could use regionfill(), if you have the Image Processing Toolbox, to do it in a single line of code:
outputArray = regionfill(inputArray, inputArray == 0);

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Walter Roberson
Walter Roberson il 7 Giu 2017
[gr, gc, gv] = find(A);
F = scatteredInterpolant(gr, gc, gv);
[br, bc] = find(~A);
replacements = F(br, bc);
A( sub2ind(size(A), br, bc) ) = replacements;


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