Exemplo n.º 1
0
        private static int bestMatchNum(IplImage source, IplImage[] temp_num, double threshold)
        {
            CvSize size = new CvSize(
                source.GetROI().Width - temp_num[0].Width + 1,
                source.GetROI().Height - temp_num[0].Height + 1);

            // 0から9の一致度
            double[] max_list = new double[10];

            // 0-9の画像とマッチング
            Parallel.For(0, 10, i =>
            {
                IplImage result = new IplImage(size, BitDepth.F32, 1);
                source.MatchTemplate(temp_num[i], result,
                    MatchTemplateMethod.CCoeffNormed);
                double min;
                CvPoint min_point, max_point;
                result.MinMaxLoc(out min, out max_list[i], out min_point, out max_point);
            });

            // 一致度が最大のものを探す
            double best = 0.0;
            int best_index = -1;

            for (int i = 0; i < 10; i++)
            {
                double tmp = max_list[i];
                if (tmp > best)
                {
                    best = tmp;
                    best_index = i;
                }
            }

            // しきい値以下の精度であれば切り捨て
            if (best < threshold) return -1;

            return best_index;
        }