Added a test for min_gesture_confidence

mediapipe/tasks/python/test/vision/gesture_recognizer_test.py

@@ -224,6 +224,24 @@ class GestureRecognizerTest(parameterized.TestCase):
       self._assert_actual_result_approximately_matches_expected_result(
         recognition_result, expected_recognition_result)
 
+  def test_recognize_succeeds_with_min_gesture_confidence(self):
+    # Creates gesture recognizer.
+    base_options = _BaseOptions(model_asset_path=self.model_path)
+    options = _GestureRecognizerOptions(base_options=base_options,
+                                        min_gesture_confidence=2)
+    with _GestureRecognizer.create_from_options(options) as recognizer:
+      # Performs hand gesture recognition on the input.
+      recognition_result = recognizer.recognize(self.test_image)
+      expected_result = _get_expected_gesture_recognition_result(
+          _THUMB_UP_LANDMARKS, _THUMB_UP_LABEL, _THUMB_UP_INDEX)
+      # Only contains one top scoring gesture.
+      self.assertLen(recognition_result.gestures[0].classifications, 1)
+      # Actual gesture with top score matches expected gesture.
+      actual_top_gesture = recognition_result.gestures[0].classifications[0]
+      expected_top_gesture = expected_result.gestures[0].classifications[0]
+      self.assertEqual(actual_top_gesture.index, expected_top_gesture.index)
+      self.assertEqual(actual_top_gesture.label, expected_top_gesture.label)
+
   def test_recognize_succeeds_with_num_hands(self):
     # Creates gesture recognizer.
     base_options = _BaseOptions(model_asset_path=self.model_path)

mediapipe/tasks/python/vision/core/image_processing_options.py

@@ -30,7 +30,7 @@ class ImageProcessingOptions:
   Attributes:
     region_of_interest: The optional region-of-interest to crop from the image.
       If not specified, the full image is used. Coordinates must be in [0,1]
-      with 'left' < 'right' and 'top' < bottom.
+      with 'x_center' < 'width' and 'y_center' < height.
     rotation_degress: The rotation to apply to the image (or cropped
       region-of-interest), in degrees clockwise. The rotation must be a
       multiple (positive or negative) of 90°.

mediapipe/tasks/python/vision/gesture_recognizer.py

@@ -118,10 +118,10 @@ class GestureRecognizerOptions:
   base_options: _BaseOptions
   running_mode: _RunningMode = _RunningMode.IMAGE
   num_hands: Optional[int] = 1
-  min_hand_detection_confidence: Optional[int] = 0.5
-  min_hand_presence_confidence: Optional[int] = 0.5
-  min_tracking_confidence: Optional[int] = 0.5
-  min_gesture_confidence: Optional[int] = -1
+  min_hand_detection_confidence: Optional[float] = 0.5
+  min_hand_presence_confidence: Optional[float] = 0.5
+  min_tracking_confidence: Optional[float] = 0.5
+  min_gesture_confidence: Optional[float] = -1
   result_callback: Optional[
       Callable[[GestureRecognitionResult, image_module.Image,
                 int], None]] = None