Intel® Integrated Performance Primitives
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Problems with 2D FFT

Deleted_U_Intel
Employee
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I have a matrix 8X4 (all initialized by 3).If Icompute FFT the first line should be 24 and all the rest should be zero instead I get a single value of 192 which means thatit computed the fft as vector not as matrix !!! I don't understand what is the problem with my code ?!?!?!?! Please help me !
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andrewk88
Beginner
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I'm not sure I understand your problemquite correctly. But if you have all values being the same =3 in your [8][4] matrix, then you should also expect only a single non-zero value (which is rescaled average of all block values - depending onwhen you do FFT normalization)in your FFT matrix.
Regards,
Andrew
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