Merge branch 4.x

modules/video/test/test_trackers.cpp

@@ -143,9 +143,7 @@ TEST(vittrack, accuracy_vittrack)
     cv::TrackerVit::Params params;
     params.net = model;
     cv::Ptr<Tracker> tracker = TrackerVit::create(params);
-    // NOTE: Test threshold was reduced from 0.67 (libjpeg-turbo) to 0.66 (libjpeg 9f),
-    // becase libjpeg and libjpeg-turbo produce slightly different images
-    checkTrackingAccuracy(tracker, 0.66);
+    checkTrackingAccuracy(tracker, 0.64);
 }
 
 }}  // namespace opencv_test::