I need to compute PCA of a binary image

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hadhami garbouge 2018-4-5

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https://ww2.mathworks.cn/matlabcentral/answers/392831-i-need-to-compute-pca-of-a-binary-image

评论： hadhami garbouge 2018-4-6

采纳的回答： Image Analyst

I need to compute PCA of a binary image

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Answer 1

Image Analyst 2018-4-6

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pca_image.m

I don't even know what that could possibly mean. In your mind, what might be the first principal component?

For what it's worth, I attach my demo converting an RGB color image into a 3 component PCA image. The initial components are the red, green, and blue values of the image pixels. You can plot them and then plot the PCA values in a scatter plot and see how PCA is a rotated version of the color gamut. I have no idea what it would be for a binary image because you have not told us your inputs. And you can't just say "they're the true or false values of the image" - that makes no sense.

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hadhami garbouge 2018-4-6

Thanks for your answer i need the pca for determination of Object Rotation in binary image so my input is binary image (black-white image) that i have my object rotate with pi/4 (ellipse)

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