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Re: DCT (jpeg)
Hi
Yes of course, a good matlab command in this area is blkproc and see matlab example in this area:
I = imread('cameraman.tif');
fun = @dct2;
J = blkproc(I,[8 8],fun);
imagesc(J), colormap(hot)
Adaptive Noise cancellation is a two microphone noise cancellation, in which one microphone collect SIGNAL+NOISE and other acquire a sample on noise only signal. Then by means of LMS algorithm a filtered version of noise subtract from SIGNAL+Noise and a clean signal will produce.
See book of...
If n is integer, No! sin(n) is Not periodic:
For periodic signal we need to have: sin(n)=sin(n+N)-> N=k*Π (That is impossible for N and k as periodic)
But for sin(Πn)=sin(Π(n+N))-> ΠN=Πk-> k=N: is periodic.
emad1347
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