Changes between Version 24 and Version 25 of Examples/Fft2dHighpass


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Timestamp:
May 17, 2010, 8:39:56 AM (10 years ago)
Author:
benl
Comment:

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  • Examples/Fft2dHighpass

    v24 v25  
    5252FFTW contains deep magic, and is comparable with vendor optimised versions. "Estimate" mode is not the most magical. The "Measure" mode of FFTW performs runtime profiling to determine the best way to do an FFT on your hardware. However, this process can require several seconds of startup time, which is why I haven't enabled it.
    5353
     54The FFTW version also uses a precomputed wavetable of sin and cos values, but the others do not.
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     56