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Diffstat (limited to 'macros/idct2.sci')
| -rw-r--r-- | macros/idct2.sci | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/macros/idct2.sci b/macros/idct2.sci index 1cfacab..c48980a 100644 --- a/macros/idct2.sci +++ b/macros/idct2.sci @@ -1,8 +1,22 @@ function y = idct2(x,varargin) +//This function computes the inverse 2-D discrete cosine transform of input matrix. +//Calling Sequence +//Y = idct2(X) +//Y = idct2(X, M, N) +//Y = idct2(X, [M, N]) +//Parameters +//X: Matrix or integer +//M, N: If specified Matrix X is padded with M rows and N columns. +//Description +// This function computes the inverse 2-D discrete cosine transform of matrix X. If M and N are specified, the input is either padded or truncated to have M rows and N columns. +//Examples +//idct2(3, 4, 6) +//ans = +// 2.811261 0.612372 -0.525856 0.250601 0.612372 -0.086516 funcprot(0); -rhs=argn(2) +rhs=argn(2); if (rhs<1 | rhs>3) then - error("Wrong number of input arguments.") + error("Wrong number of input arguments."); end select(rhs) case 1 then |