1 files changed, 59 insertions, 0 deletions
diff --git a/tracker-pt/module/point_extractor.h b/tracker-pt/module/point_extractor.h
new file mode 100644
index 00000000..1b6f55a2
--- /dev/null
+++ b/tracker-pt/module/point_extractor.h
@@ -0,0 +1,59 @@
+/* Copyright (c) 2012 Patrick Ruoff
+ * Copyright (c) 2015-2016 Stanislaw Halik <sthalik@misaki.pl>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ */
+
+#pragma once
+
+#include "pt-api.hpp"
+
+#include <vector>
+
+#include <opencv2/core.hpp>
+#include <opencv2/imgproc.hpp>
+
+namespace pt_module {
+
+using namespace types;
+
+struct blob
+{
+    f radius, brightness;
+    vec2 pos;
+    cv::Rect rect;
+
+    blob(f radius, const vec2& pos, f brightness, const cv::Rect& rect);
+};
+
+class PointExtractor final : public pt_point_extractor
+{
+public:
+    // extracts points from frame and draws some processing info into frame, if draw_output is set
+    // dt: time since last call in seconds
+    void extract_points(const pt_frame& frame, pt_preview& preview_frame, std::vector<vec2>& points) override;
+    PointExtractor(const QString& module_name);
+private:
+    static constexpr int max_blobs = 16;
+
+    pt_settings s;
+
+    cv::Mat1b frame_gray, frame_bin, frame_blobs;
+    cv::Mat1f hist;
+    std::vector<blob> blobs;
+    cv::Mat1b ch[3];
+
+    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_channels(const cv::Mat& orig_frame, const int* order, int order_npairs);
+
+    void color_to_grayscale(const cv::Mat& frame, cv::Mat1b& output);
+    void threshold_image(const cv::Mat& frame_gray, cv::Mat1b& output);
+};
+
+} // ns impl
+