idctAsync function
IDCT calculates the inverse Discrete Cosine Transform of a 1D or 2D array.
For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga77b168d84e564c50228b69730a227ef2
Implementation
Future<Mat> idctAsync(
InputArray src, {
int flags = 0,
}) async =>
cvRunAsync((callback) => cffi.core_Idct_Async(src.ref, flags, callback), matCompleter);