how can I compute two-point correlation function from binary image??

I want to make 3D microstructure using stochastic reconstruction from 2D image. To do this, I should know characterization via correlation functions. I do not know how to compute correlation function though I know the theory of correlation function. Please give me an advice!

Answer 1

[Jyotish Robin]

It is my understanding that you want to compute the two-point correlation function of a binary image.

The following documentation link will be helpful.

https://in.mathworks.com/matlabcentral/fileexchange/31353-two-point-correlation-function-of-a-finite-2d-lattice

Answer 2

[Santiago Benito]

I might be a little to late, but here's a function I programmed that is much faster: https://de.mathworks.com/matlabcentral/fileexchange/86852-autocorr2-two-point-autocorrelation

It uses the FFT to do the convolution.