jon

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Cooley-Tukey FFT: You don't have to zeropad to a power of 2?
Please clarify!

environ 11 ans il y a | 0

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Cooley-Tukey FFT: You don't have to zeropad to a power of 2?
Someone wrote "The algorithm that Cooley and Tukey presented in their classic paper (Math. Comp. 19 (1965), 297-301. http://dx.d...

environ 11 ans il y a | 2 réponses | 1

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A 3x3 image kernel takes 9 multiplications and 8 or 9 additions for each pixel?
I doubt because you have 9 multiplications and you are adding 9 numberse together, when using a 3x3 convolution matrix. Addin...

plus de 11 ans il y a | 1 réponse | 0

1

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differences between all the FFTs?
Wikipedia lists a lot of FFT algorithms: Cooley–Tukey FFT algorithm, Prime-factor FFT algorithm, Bruun's FFT algorithm, Rad...

plus de 11 ans il y a | 1 réponse | 0

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Question

Why do we need to flip the kernel in 2D convolution?
Why do we need to flip the kernel in 2D convolution in the first place? What's the benefit of this? So, why can't we leave it un...

plus de 11 ans il y a | 2 réponses | 0

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