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Faster 2D-Hadmard Tranform 1.0
File ID: 84587






Faster 2D-Hadmard Tranform 1.0
Download Faster 2D-Hadmard Tranform 1.0http://www.andre.comReport Error Link
License: Shareware
File Size: 10.0 KB
Downloads: 90
Submit Rating:
Faster 2D-Hadmard Tranform 1.0 Description
Description: 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.html

Howto generate sequency ordered Hadamard Matrices:
http://ieeexplore.ieee.org/iel5/12/35157/01674860.pdf

http://dx.doi.org/
doi:10.1016/j.physletb.2003.10.071

License: Shareware

Related: Transformation, takes, substantially, walshhadamard, Generate

O/S:BSD, Linux, Solaris, Mac OS X

File Size: 10.0 KB

Downloads: 90



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