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can anybody give me the code in C ,of a function to calculate the Descrete Cosine Transform (DCT) of a matrix ..

i am in real hurry

can some body tell , how to write function which
calculates average of all the elements of the 2D array

i need to resample a 2d array in blocks of 8 X 8.
to be more elaborate


@ Zuk
i am sorry i made mistake.. it looks like this now ..



let