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c++ Programming Glossary: fftInverse fourier transformation in OpenCV http://stackoverflow.com/questions/10269456/inverse-fourier-transformation-in-opencv human and want a more natural looking visualization of the FFT result i.e. with the 0 frequency in the middle negative frequencies.. bottom and positive frequencies up right . To invert the FFT you need to pass the result of the forward transform as is or.. the flag DFT_INVERSE. If you remember your math about FFT the forward and backward transforms have very tight kinks in..
How do you install Boost on MacOS? http://stackoverflow.com/questions/104322/how-do-you-install-boost-on-macos
Floating point comparison revisited http://stackoverflow.com/questions/13940316/floating-point-comparison-revisited ULP tolerance. For example nearly every output value in an FFT is affected by nearly every input value and the error in any..
Real-time pitch detection using FFT http://stackoverflow.com/questions/1466968/real-time-pitch-detection-using-fft time pitch detection using FFT I'm trying to do real time pitch detection using C . I'm testing..
http://stackoverflow.com/questions/1761212/any-good-c-c-dsp-library performance per MHz for DSP algorithms such as FIR and FFT and Microchip provide a DSP library optimised for the part...
http://stackoverflow.com/questions/2133651/spectrogram-c-library The steps are window function fairly trivial e.g. Hanning FFT FFTW would be a good choice but if licensing is an issue then.. steps are window function fairly trivial e.g. Hanning FFT FFTW would be a good choice but if licensing is an issue then go.. good choice but if licensing is an issue then go for Kiss FFT or similar calculate log magnitude of frequency domain components..
Video Stabilization with OpenCV http://stackoverflow.com/questions/3431434/video-stabilization-with-opencv only translation between two frames. OpenCV includes DFT FFT and IFFT see the linked wikipedia article on formulas and explanation... between two frames. OpenCV includes DFT FFT and IFFT see the linked wikipedia article on formulas and explanation...
c/c++ FFT library with non GPL license [closed] http://stackoverflow.com/questions/463181/c-c-fft-library-with-non-gpl-license c FFT library with non GPL license closed I am looking for a FFT.. library with non GPL license closed I am looking for a FFT library with a license that allow me to include it in a commercial.. be compiling it. Anybody has good experience with such a FFT library I found this page which list a lot of libraries http..
How to generate the audio spectrum using fft in C++? http://stackoverflow.com/questions/4675457/how-to-generate-the-audio-spectrum-using-fft-in-c need to do this convert audio data to format required by FFT e.g. int float separate L R channels apply suitable window function.. window function e.g. Hann aka Hanning window apply FFT NB if using typical complex to complex FFT then set imaginary.. window apply FFT NB if using typical complex to complex FFT then set imaginary parts of input array to zero calculate magnitude..
Inverse fourier transformation in OpenCV http://stackoverflow.com/questions/10269456/inverse-fourier-transformation-in-opencv DFT_SCALE split dst planes dst planes 0 c opencv fft inverse dft share improve this question Actually you don't..
Real-time pitch detection using FFT http://stackoverflow.com/questions/1466968/real-time-pitch-detection-using-fft the FMOD library. Thanks Niall. c audio signal processing fft pitch tracking share improve this question Take a look at..
modular arithmetics and NTT (finite field DFT) optimizations http://stackoverflow.com/questions/18577076/modular-arithmetics-and-ntt-finite-field-dft-optimizations
http://stackoverflow.com/questions/2133651/spectrogram-c-library use Qwt for the GUI part. Any suggestions Thanks. c fft scientific computing spectrum spectrogram share improve this..
How to generate the audio spectrum using fft in C++? http://stackoverflow.com/questions/4675457/how-to-generate-the-audio-spectrum-using-fft-in-c to generate the audio spectrum using fft in C I want to generate an audio spectrum http www.youtube.com.. file. Basically this problem requires calculating the fft of the audio signal. How do I do I program this in C C I've.. in C C I've looked at a couple of open source http www.fftw.org libraries and I really don't know how to use these for..
C# Marshalling double* from C++ DLL? http://stackoverflow.com/questions/5072340/c-sharp-marshalling-double-from-c-dll an exported function extern C __declspec dllexport double fft double dataReal double dataImag ... The function calculates.. to call this function in C#. What I'm doing is DllImport fft.dll static extern double fft double dataReal double dataImag.. What I'm doing is DllImport fft.dll static extern double fft double dataReal double dataImag and when I test it like this..
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