Stick blob results into a flatbuffer

subscibed to this in viewer

Signed-off-by: Henry Speiser <henry@speiser.net>
Change-Id: I5ea9a3b8ab31ea7c8e9351469ba80de9c6cc3d2a
Signed-off-by: Henry Speiser <henry@speiser.net>
diff --git a/y2022/vision/blob_detector.h b/y2022/vision/blob_detector.h
index a0663fd..f8a4ab4 100644
--- a/y2022/vision/blob_detector.h
+++ b/y2022/vision/blob_detector.h
@@ -13,7 +13,7 @@
     cv::Point centroid;
     double aspect_ratio;
     double area;
-    size_t points;
+    size_t num_points;
   };
 
   BlobDetector() {}
@@ -45,7 +45,7 @@
       const std::vector<BlobStats> &blob_stats, cv::Point centroid);
 
   static void ExtractBlobs(
-      cv::Mat rgb_image, cv::Mat &binarized_image, cv::Mat blob_image,
+      cv::Mat rgb_image, cv::Mat &binarized_image,
       std::vector<std::vector<cv::Point>> &filtered_blobs,
       std::vector<std::vector<cv::Point>> &unfiltered_blobs,
       std::vector<BlobStats> &blob_stats, cv::Point &centroid);