C# OpenCvSharp 模板匹配

C# OpenCvSharp 模板匹配

          public static System.Drawing.Point FindPicFromImage(Mat srcMat, Mat dstMat, double threshold = 0.9)
    {
        OpenCvSharp.OutputArray outArray = null;
        try
        {
            srcMat = srcMat.CvtColor(ColorConversionCodes.RGBA2RGB);

            outArray = OpenCvSharp.OutputArray.Create(srcMat);

            OpenCvSharp.Cv2.MatchTemplate(srcMat, dstMat, outArray, TemplateMatchModes.SqDiff);
            double minValue, maxValue;
            OpenCvSharp.Point location, point;
            OpenCvSharp.Cv2.MinMaxLoc(OpenCvSharp.InputArray.Create(outArray.GetMat()), out minValue, out maxValue, out location, out point);
            Console.WriteLine(maxValue);
            if (maxValue >= threshold)
                return new System.Drawing.Point(point.X, point.Y);
            return System.Drawing.Point.Empty;
        }
        catch (Exception ex)
        {
            return System.Drawing.Point.Empty;
        }
        finally
        {

        }
    }