2D Autocorrelation function
This function calculates the 2D auto correlation function of matrix ( gray scale image) using Wiener-Khinchin theorem and uses the four internal function ifft2,fftshift,fft2 & conj .
In the PDF file "2DAUTOCORRELATIONFUNCTION.pdf" the calculations are detailed using two examples,
1) "circuit.tif" image.
2) 2d zero mean Gaussian signal .
As in 1d, the 2d auto-correlation of the second example is symmetric and has Dirac impulse in the center.
引用
Youssef Khmou (2024). 2D Autocorrelation function (https://www.mathworks.com/matlabcentral/fileexchange/37624-2d-autocorrelation-function), MATLAB Central File Exchange. 取得済み .
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- Signal Processing > Signal Processing Toolbox > Transforms, Correlation, and Modeling > Correlation and Convolution >
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バージョン | 公開済み | リリース ノート | |
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1.0.0.0 |