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Unformatted text preview: C D 1 E F G H 2 I 3 k (b) In general, the transform ) , ( l k v of a real 2D sequence is complex. However, there are some elements of ) , ( l k v ( , = = l k for example) which will always be real. Assuming that ) , ( n m u is real and of size , N N × where N is even, give the values of k , l for which ) , ( l k v will always be real. 2 3. Find the 2D unitary DFT ) , ( l k v of the following matrices: a) = 1 1 ) , ( n m u b) ( , ) 4 1 1 1 1 u m n = c) 1 1 1 1 1 ( , ) 1 1 4 1 1 j j j j u m n j j j j  =   4. Find the 2D unitary DCT ) , ( l k v of the matrices in problem 2 parts (a) and (b)....
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 Fall '10
 Villasenor
 Image processing, Computer Graphics, Complex number, 2D unitary DFT

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