speed20: Otsu全局阈值改为自适应局部阈值(11x11 Gaussian)

2026-07-07 17:52:01 +08:00
parent 66fb213861
commit cbb54b4882
1 changed files with 6 additions and 4 deletions
@@ -69,10 +69,12 @@ cv::Mat image_binerize(cv::Mat &frame)
    cv::cvtColor(frame, hsvImage, cv::COLOR_BGR2HSV);
    cv::split(hsvImage, hsvChannels);

-    cv::threshold(hsvChannels[0], binarizedFrame,
-                  0, 255, cv::THRESH_BINARY_INV | cv::THRESH_OTSU);
-    cv::threshold(hsvChannels[1], output,
-                  0, 255, cv::THRESH_BINARY_INV | cv::THRESH_OTSU);
+    cv::adaptiveThreshold(hsvChannels[0], binarizedFrame, 255,
+                           cv::ADAPTIVE_THRESH_GAUSSIAN_C,
+                           cv::THRESH_BINARY_INV, 11, 2);
+    cv::adaptiveThreshold(hsvChannels[1], output, 255,
+                           cv::ADAPTIVE_THRESH_GAUSSIAN_C,
+                           cv::THRESH_BINARY_INV, 11, 2);

    cv::bitwise_or(output, binarizedFrame, output);