ColorGlove.Filter.DrawPredictionOverlay C# (CSharp) Method

        private static void DrawPredictionOverlay(ProcessorState state)
        {
            List<Tuple<byte,byte,byte>> label_colors = Util.GiveMeNColors(state.feature.num_classes_);
            ResetOverlay(state);

            // debug
            int count_nonbackground = 0;
            for (int i = 0; i < state.predict_labels_.Length; i++)
                if (state.predict_labels_[i] != 0)
                    count_nonbackground++;
            Debug.WriteLine("{0} non-backgrounds: ", count_nonbackground);
            // end of debug

            for (int y = state.crop.Value.Y; y <= state.crop.Value.Y + state.crop.Value.Height; y++)
            {
                for (int x = state.crop.Value.X; x <= state.crop.Value.X + state.crop.Value.Width; x++)
                {
                    int depth_index = Util.toID(x, y, width, height, kDepthStride);
                    int predict_label = state.predict_labels_[depth_index];

                    int bitmap_index = depth_index * 4;
                    if (predict_label != (int)HandGestureFormat.Background)
                    {
                        state.overlay_bitmap_bits_[bitmap_index + 2] = (int)label_colors[predict_label].Item1;
                        state.overlay_bitmap_bits_[bitmap_index + 1] = (int)label_colors[predict_label].Item2;
                        state.overlay_bitmap_bits_[bitmap_index + 0] = (int)label_colors[predict_label].Item3;
                    }
                }
            }

            state.overlay_start_.Value = true;
        }