Faster 2D-Hadmard Tranform 1.0

Date Added: July 08, 2013 | Visits: 286

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This function generates the 2D Walsh or Hadamard Transform of a matrix.Where the Walsh Transform uses the sequency ordered matrix and the Hadamard the natural/hadamard ordered matrix.The paley ordered transform is not yet implemented.On my machine the function can transform matrices of a size up to 4096x4096 in very little time compared to the other 2D Walsh/Hadamard transform (ID 6882) which needs substantially more time.For a 4096x4096 the transformation takes ~30s on the first call and ~20s after that (Transformation matrix is cashed)References:Walsh functions:http://mathworld.wolfram.com/WalshFunction.htmlHowto generate sequency ordered Hadamard Matrices:http://ieeexplore.ieee.org/iel5/12/35157/01674860.pdfhttp://dx.doi.org/doi:10.1016/j.physletb.2003.10.071

Requirements: No special requirements

Platforms: Matlab

Keyword: Generate, Substantially, Takes, Transformation, Walshhadamard

Users rating: 0/10

License: Shareware

Size: 10 KB

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