public void FindSubImage(Mat curPageMat)
        {
            foreach (var m in _additionalImgMats)
            {
                List <Rect> outRects = new List <Rect>();
                FindSubImageSample.Run(curPageMat, m.Value, outRects, _color);

                foreach (var r in outRects)
                {
                    Console.WriteLine(m.Key + "  " + r);
                }
            }
        }