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This document discusses the Walsh and Hadamard transforms. It defines the 1D and 2D Walsh transforms using binary representations, and shows that the Walsh basis forms an orthogonal matrix. It also describes how the 2D Walsh transform is separable, and how the basis images can be formed. It then discusses the fast Walsh transform algorithm. Similarly, it defines the 1D and 2D Hadamard transforms and shows how the Hadamard matrix can be formed recursively. It also discusses ordered Hadamard transforms and co
- Author
- Rakesh Inani
- Language
- EN