diff options
| -rw-r--r-- | tracker-pt/module/point_extractor.cpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/tracker-pt/module/point_extractor.cpp b/tracker-pt/module/point_extractor.cpp index fcf58c2d..f8c37351 100644 --- a/tracker-pt/module/point_extractor.cpp +++ b/tracker-pt/module/point_extractor.cpp @@ -190,7 +190,8 @@ void PointExtractor::threshold_image(const cv::Mat& frame_gray, cv::Mat1b& outpu float const* const __restrict ptr = hist.ptr<float>(0); const unsigned area = uround(3 * M_PI * radius*radius); const unsigned sz = unsigned(hist.cols * hist.rows); - unsigned thres = 32; + constexpr unsigned min_thres = 64; + unsigned thres = min_thres; for (unsigned i = sz-1, cnt = 0; i > 32; i--) { cnt += ptr[i]; @@ -199,6 +200,9 @@ void PointExtractor::threshold_image(const cv::Mat& frame_gray, cv::Mat1b& outpu thres = i; } + if (thres > min_thres) + thres *= .8; + cv::threshold(frame_gray, output, thres, 255, cv::THRESH_BINARY); } } |