pt: cap hyst value to 1/4 of image intensity

1 files changed, 1 insertions, 1 deletions

diff --git a/ftnoir_tracker_pt/point_extractor.cpp b/ftnoir_tracker_pt/point_extractor.cpp
index 949fd58f..daea9fc0 100644
--- a/ftnoir_tracker_pt/point_extractor.cpp
+++ b/ftnoir_tracker_pt/point_extractor.cpp
@@ -57,7 +57,7 @@ std::vector<Vec2f> PointExtractor::extract_points(Mat& frame)
 		float t = primary;
 		//float hyst = float(threshold_secondary_val)/512.;
 		//threshold(frame_gray, frame_bin, (t + ((255.-t)*hyst)), 255, THRESH_BINARY);
-		float hyst = float(primary)/256.;
+		float hyst = float(primary)/(256.*4.);
 		threshold(frame_gray, frame_bin, t, 255, THRESH_BINARY); 
 		threshold(frame_gray, frame_bin_low,std::max(float(1), t - (t*hyst)), 255, THRESH_BINARY);