How to extract global features from dorsal hand vein using Principal component Analysis PCA

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Balaji M. Sontakke 2016-4-13

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https://ww2.mathworks.cn/matlabcentral/answers/278736-how-to-extract-global-features-from-dorsal-hand-vein-using-principal-component-analysis-pca

编辑： Balaji M. Sontakke 2016-4-13

Hello Sir, am working on the dorsal hand vein, i have preprocessed hand vein images after that I have to extract features from dorsal hand vein using Principal Component Analysis PCA. But i dont understand what is feature? and how to extract it using PCA. here am giving the code of preprocessed dorsal hand vein image.