how to call back(display) the images which been extracted before?

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Ihsan Yassin 2017-1-23

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https://ww2.mathworks.cn/matlabcentral/answers/321552-how-to-call-back-display-the-images-which-been-extracted-before

关闭： MATLAB Answer Bot 2021-8-20

I've done feature extraction using GLCM and k-nn for classification. What I need to do now is troubleshooting, to analyse why the images been classified wrongly. I want to display the nearest neighbor of the testing data, but not just points like below:

I want to display the images that nearest to that image(test), so that is easy to know why is that the images nearest to each other(visually). But here is my problem, I didn't know how to call back the images which been extracted before, since those are presented in array of numbers only.

What should I do?Please help me