SynchronizationContext.SetSynchronizationContext(new DispatcherSynchronizationContext(System.Windows.Application.Current.Dispatcher));
SynchronizationContext.Current.Post((p2) => {
Mat src = new Mat();
src = Cv2.ImRead($"C:\\Users\\100025357\\Desktop\\taskvideo\\{index}.jpg");
BitmapSource = src.ToBitmapSource();
},null);
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