Computes the inverse Discrete Sine Transform (DST) of the input sequence DST {X}. Wire data to the DST {X} input to determine the polymorphic instance to use or manually select the instance.


icon

Inputs/Outputs

  • c2ddbl.png DST {X} —

    DST {X} is the real input sequence.

  • i2ddbl.png X —

    X is the inverse DST of DST {X}.

  • ii32.png error —

    error returns any error or warning from the VI. You can wire error to the Error Cluster From Error Code VI to convert the error code or warning into an error cluster.

    • 2D Inverse DST

    If y represents the input matrix DST {X}, the two-dimensional inverse Discrete Sine Transform of y is defined as:

    where M and N are the number of rows and columns, respectively, of DST {X}. x(m, n) is the element of the output matrix X with row number m and column number n. y(u,v) is the element of DST {X} with row number u and column number v. This VI performs a two-dimensional inverse DST using the following two steps:

    1. Perform a one-dimensional inverse DST row-by-row on DST {X}. The output is Y'.
    2. Perform a one-dimensional inverse DST column-by-column on Y'. The output is X.