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Testing version of 2D wavelet transform using flattened arrays and indexing…

Authored by U No Hoo <roland.schregle@gmail.com> on Sep 3 2021, 17:46.

Description

Testing version of 2D wavelet transform using flattened arrays and indexing macros in anticipation it would be easier to interface to rcontrib and improve cache performance. Infact, it actually *UNDERPERFORMED* compared to the previous version using arrays of pointers (Iliffe arrays)!

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