Memory consumption while using autocorr2 package

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Hussein Kokash 2022-12-6

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评论： Hussein Kokash 2022-12-6

Hello all,

I am trying to use the following package:

https://www.mathworks.com/matlabcentral/fileexchange/86852-autocorr2-two-point-autocorrelation

However, whenever I try to run it, the memory consumption gradual increases until the device freezes, I tried alternating the parameters, same results.

Any idea what is causing this huge memory consumption?, knowing that I run heavier packages with no issues.

Thank you and stay well.

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Jan 2022-12-6

在 MATLAB Online 中打开

I have no problem with running the function to get an auto-correlation for images with 1000x1000 pixels.

Again: What do you use as inputs?

This code does not look "heavy":

x = [];
for k = 1:1e6
    x(k) = k;
end

Due to the missing pre-allocation Matlab has to allocate more than 4 TB of RAM to run this code.

Hussein Kokash 2022-12-6

I see what you mean now.

I will edit it so it allocates less than that.

Thank you so much!

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Image Processing and Computer Vision Image Processing Toolbox Image Filtering and Enhancement Image Arithmetic

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