tracker/pt: fix prototypes

2 files changed, 3 insertions, 3 deletions

diff --git a/tracker-pt/module/point_extractor.cpp b/tracker-pt/module/point_extractor.cpp
index 53f03fa9..6eaf0d2f 100644
--- a/tracker-pt/module/point_extractor.cpp
+++ b/tracker-pt/module/point_extractor.cpp
@@ -49,7 +49,7 @@ corresponding location is a good candidate for the extracted point.
 The idea similar to the window scaling suggested in  Berglund et al. "Fast, bias-free 
 algorithm for tracking single particles with variable size and shape." (2008).
 */
-static cv::Vec2d MeanShiftIteration(const cv::Mat &frame_gray, const vec2 &current_center, f filter_width)
+static vec2 MeanShiftIteration(const cv::Mat1b &frame_gray, const vec2 &current_center, f filter_width)
 {
     // Most amazingly this function runs faster with doubles than with floats.
     const f s = 1 / filter_width;
@@ -109,7 +109,7 @@ void PointExtractor::ensure_buffers(const cv::Mat& frame)
     }
 }
 
-void PointExtractor::extract_single_channel(const cv::Mat& orig_frame, int idx, cv::Mat& dest)
+void PointExtractor::extract_single_channel(const cv::Mat& orig_frame, int idx, cv::Mat1b& dest)
 {
     ensure_channel_buffers(orig_frame);
 
diff --git a/tracker-pt/module/point_extractor.h b/tracker-pt/module/point_extractor.h
index 03b43489..06948ac7 100644
--- a/tracker-pt/module/point_extractor.h
+++ b/tracker-pt/module/point_extractor.h
@@ -48,7 +48,7 @@ private:
     void ensure_channel_buffers(const cv::Mat& orig_frame);
     void ensure_buffers(const cv::Mat& frame);
 
-    void extract_single_channel(const cv::Mat& orig_frame, int idx, cv::Mat& dest);
+    void extract_single_channel(const cv::Mat& orig_frame, int idx, cv::Mat1b& dest);
 
     void color_to_grayscale(const cv::Mat& frame, cv::Mat1b& output);
     void threshold_image(const cv::Mat& frame_gray, cv::Mat1b& output);