Question: A = dctmtx ( 4 ) generate the 4 4 Discrete Cosine Transform ( DCT ) matrix. Suppose 1 = [ 1 2 3 4

A = dctmtx (4) generate the 44 Discrete Cosine Transform (DCT) matrix. Suppose 1=[1234]T and 2=[1111]T. What is the value of distortion |11|2? How is the distortion related to the DCT coefficient that was set to zero?

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