Inverse DFT

  • Thread starter Thread starter Arnab Das
  • Start date Start date
A

Arnab Das

I am working on Image Processing application. My application need to
apply Inverse DFT to 1200*1200 array.What I have done is that I have
applied ID inverse dft row wise and then column wise (according to the
algo). I am getting acceptable result but the method is taking too
much time ( almost 10 minutes) which is not acceptable. Can anybody
suggest me how I can reduce the Time ?

Thanks,
Arnab
 
I am working on Image Processing application. My application need to
apply Inverse DFT to 1200*1200 array.What I have done is that I have
applied ID inverse dft row wise and then column wise (according to the
algo). I am getting acceptable result but the method is taking too
much time ( almost 10 minutes) which is not acceptable. Can anybody
suggest me how I can reduce the Time ?
Click to expand...

You might want to repost in microsoft.public.dotnet.framework.drawing.
 
I'm sure if you were to post the code we could give you a lot of
suggestions. Also, have you considered using DllImport to call the
BLAS routine for your particular CPU?
 
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