if statement: Having one image as a condition and adjusting another image is condition is met.

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Ihiertje
Ihiertje 2017-9-26
回答： Geoff Hayes 2017-9-26
Hi,
I'm dividing two images (C=A/B). Now my if the pixelintensity in B <= threshold, then the pixel in C should be changed to zero. This is my code so far:
if (B <= threshold)
C = 0;
end
However, this does not seem to work. I also thought of first finding the indices in B which are below the threshold and then set these indices to zero, but I couldn't get that right either.
Could someone help me further with this?

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Geoff Hayes
Geoff Hayes 2017-9-26
If we assume that B and C are of the same dimension and that you want all elements of C to be set to zero if their corresponding element in B is less than some threshold, then you could perhaps try
threshold = 0.5;
B = rand(5,5);
C = rand(5,5);
C(B < threshold) = 0;

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