tracker/pt: don't mask out pixels below threshold

2 files changed, 3 insertions, 5 deletions

diff --git a/tracker-pt/module/point_extractor.cpp b/tracker-pt/module/point_extractor.cpp
index 804245d2..6e79ef24 100644
--- a/tracker-pt/module/point_extractor.cpp
+++ b/tracker-pt/module/point_extractor.cpp
@@ -98,7 +98,6 @@ void PointExtractor::ensure_buffers(const cv::Mat& frame)
 
     frame_gray.create(H, W);
     frame_bin.create(H, W);
-    frame_gray_unmasked.create(H, W);
 }
 
 void PointExtractor::extract_single_channel(const cv::Mat& orig_frame, int idx, cv::Mat1b& dest)
@@ -303,15 +302,14 @@ void PointExtractor::extract_points(const pt_frame& frame_,
     const cv::Mat& frame = frame_.as_const<Frame>()->mat;
 
     ensure_buffers(frame);
-    color_to_grayscale(frame, frame_gray_unmasked);
+    color_to_grayscale(frame, frame_gray);
 
 #if defined PREVIEW
     cv::imshow("capture", frame_gray);
     cv::waitKey(1);
 #endif
 
-    threshold_image(frame_gray_unmasked, frame_bin);
-    frame_gray_unmasked.copyTo(frame_gray, frame_bin);
+    threshold_image(frame_gray, frame_bin);
 
     const f region_size_min = (f)s.min_point_size;
     const f region_size_max = (f)s.max_point_size;
diff --git a/tracker-pt/module/point_extractor.h b/tracker-pt/module/point_extractor.h
index b1cc86d5..3f7fb4ee 100644
--- a/tracker-pt/module/point_extractor.h
+++ b/tracker-pt/module/point_extractor.h
@@ -42,7 +42,7 @@ private:
 
     pt_settings s;
 
-    cv::Mat1b frame_gray_unmasked, frame_bin, frame_gray;
+    cv::Mat1b frame_bin, frame_gray;
     cv::Mat1f hist;
     std::vector<blob> blobs;
     cv::Mat1b ch[3];