How can i extract shape features of an image for content based image retrieval ?

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nissrine Neyy 2022-10-23

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https://ww2.mathworks.cn/matlabcentral/answers/1833498-how-can-i-extract-shape-features-of-an-image-for-content-based-image-retrieval

回答： Mandar 2023-2-1

I am trying to use the shape information in a content based image retrieval system, and i don't know which algorithm is best to extract the features and based on what to chose it.

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Answer 1

Mandar 2023-2-1

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https://ww2.mathworks.cn/matlabcentral/answers/1833498-how-can-i-extract-shape-features-of-an-image-for-content-based-image-retrieval#answer_1160995

The “regionpropos” function can be used to compute various shape features of the object. For example, Major axis length, Area, Perimeter, and so on. Refer the following documentation link to know more about “regionprops” function.

https://in.mathworks.com/help/images/ref/regionprops.html

In addition, refer the following answered question for the steps to be followed for shape feature extraction.

https://in.mathworks.com/matlabcentral/answers/841295-matlab-code-for-extract-shape-features-from-an-image-including-circle-and-rectangle