public IObservable <Mat> Process(IObservable <Mat> source)
{
return(source.Select(input =>
{
if (input.Rows > 1)
{
throw new InvalidOperationException("The input buffer must have a single channel.");
}
var bitbuffer = new Mat(input.ElementSize * 8, input.Cols, input.Depth, 1);
for (int i = 0; i < bitbuffer.Rows; i++)
{
using (var row = bitbuffer.GetRow(i))
{
CV.AndS(input, Scalar.Real(1 << i), row);
}
}
var output = input.Depth != Depth.U8 ? new Mat(bitbuffer.Size, Depth.U8, 1) : bitbuffer;
if (output != bitbuffer)
{
CV.CmpS(bitbuffer, 0, output, ComparisonOperation.NotEqual);
}
CV.Threshold(output, output, 1, 1, ThresholdTypes.Truncate);
return output;
}));
}