Geometric Invariant Moments for Extracting Image Geometric Features
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Resource Overview
Detailed Documentation
This code provides a MATLAB implementation for extracting geometric features from images using invariant moments. It calculates 7 Hu moments as distinctive feature vectors, which are rotation, scale, and translation invariant descriptors suitable for content-based image retrieval applications. The implementation involves reading input images, preprocessing them (converting to grayscale if necessary), and computing central moments followed by normalized Hu moments through mathematical transformations. These features capture essential shape characteristics while remaining insensitive to geometric transformations. The code serves as a foundational template that can be extended with additional preprocessing steps, feature selection mechanisms, or similarity measurement algorithms to enhance retrieval accuracy for diverse application scenarios.
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