discrete sine and cosine transforms with CUFFT library Any plans for supporting discrete sine/cosine

Accelerated Computing CUDA CUDA Programming and Performance
1

I have a project that needs to use lots of sine transforms. The CUFFT will do FFTs but doesn’t seem to have cosine/sine transforms. Is there a way to do sine transforms efficiently on CUDA even without there being a specific CUFFT call for them? Maybe co(sine) Xforms will be added to CUFFT in the future?

Mark

2

I don’t think we have any plans to add co(sine) transforms to CUFFT, but there is an 8x8 discrete cosine transform (DCT) sample in the SDK.

3

It’s possible to use a standard FFT for DCT and DST transforms.

e.g.

for an even symmetric signal FFT = DCT

for an odd symmetric signal FFT = DST

http://en.wikipedia.org/wiki/Fft#FFT_algor…_symmetric_data

N.

4

It seems available for 1-dimension, but not for 2 dimension or 3 dimension DST.

I am looking for a 2D dst

5

In fact, I find a really fast DST for 2 dimension.

I will send to here later

6

Would you please post the code for the 2d DST? That would be really helpful.

7

Would you please post the code for the 2d DST? That would be really helpful.