Update app.py

app.py

@@ -8,136 +8,97 @@ mp_pose = mp.solutions.pose
 pose = mp_pose.Pose(static_image_mode=False, min_detection_confidence=0.5, model_complexity=1)
 mp_drawing = mp.solutions.drawing_utils
 
+# Function to calculate the angle between three points
+def calculate_angle(a, b, c):
+    a = np.array(a)  # First point
+    b = np.array(b)  # Mid point
+    c = np.array(c)  # End point
+    
+    radians = np.arctan2(c[1] - b[1], c[0] - b[0]) - np.arctan2(a[1] - b[1], a[0] - b[0])
+    angle = np.abs(radians * 180.0 / np.pi)
+    
+    if angle > 180.0:
+        angle = 360 - angle
+        
+    return angle
+
 # Define a function to classify yoga poses
-def classifyPose(landmarks, output_image, display=False):
-    '''
-    This function classifies yoga poses depending upon the angles of various body joints.
-    Args:
-        landmarks: A list of detected landmarks of the person whose pose needs to be classified.
-        output_image: A image of the person with the detected pose landmarks drawn.
-        display: A boolean value that is if set to true the function displays the resultant image with the pose label
-        written on it and returns nothing.
-    Returns:
-        output_image: The image with the detected pose landmarks drawn and pose label written.
-        label: The classified pose label of the person in the output_image.
-
-    '''
-
-    # Initialize the label of the pose. It is not known at this stage.
+def classify_pose(landmarks, output_image, display=False):
     label = 'Unknown Pose'
-
-    # Specify the color (Red) with which the label will be written on the image.
     color = (0, 0, 255)
 
-    # Calculate the required angles.
-    #----------------------------------------------------------------------------------------------------------------
-
-    # Get the angle between the left shoulder, elbow and wrist points.
-    left_elbow_angle = calculateAngle(landmarks[mp_pose.PoseLandmark.LEFT_SHOULDER.value],
-                                      landmarks[mp_pose.PoseLandmark.LEFT_ELBOW.value],
-                                      landmarks[mp_pose.PoseLandmark.LEFT_WRIST.value])
-
-    # Get the angle between the right shoulder, elbow and wrist points.
-    right_elbow_angle = calculateAngle(landmarks[mp_pose.PoseLandmark.RIGHT_SHOULDER.value],
-                                       landmarks[mp_pose.PoseLandmark.RIGHT_ELBOW.value],
-                                       landmarks[mp_pose.PoseLandmark.RIGHT_WRIST.value])
-
-    # Get the angle between the left elbow, shoulder and hip points.
-    left_shoulder_angle = calculateAngle(landmarks[mp_pose.PoseLandmark.LEFT_ELBOW.value],
-                                         landmarks[mp_pose.PoseLandmark.LEFT_SHOULDER.value],
-                                         landmarks[mp_pose.PoseLandmark.LEFT_HIP.value])
+    # Calculate the required angles
+    left_elbow_angle = calculate_angle(
+        [landmarks[mp_pose.PoseLandmark.LEFT_SHOULDER.value].x, landmarks[mp_pose.PoseLandmark.LEFT_SHOULDER.value].y],
+        [landmarks[mp_pose.PoseLandmark.LEFT_ELBOW.value].x, landmarks[mp_pose.PoseLandmark.LEFT_ELBOW.value].y],
+        [landmarks[mp_pose.PoseLandmark.LEFT_WRIST.value].x, landmarks[mp_pose.PoseLandmark.LEFT_WRIST.value].y])
+
+    right_elbow_angle = calculate_angle(
+        [landmarks[mp_pose.PoseLandmark.RIGHT_SHOULDER.value].x, landmarks[mp_pose.PoseLandmark.RIGHT_SHOULDER.value].y],
+        [landmarks[mp_pose.PoseLandmark.RIGHT_ELBOW.value].x, landmarks[mp_pose.PoseLandmark.RIGHT_ELBOW.value].y],
+        [landmarks[mp_pose.PoseLandmark.RIGHT_WRIST.value].x, landmarks[mp_pose.PoseLandmark.RIGHT_WRIST.value].y])
+
+    left_shoulder_angle = calculate_angle(
+        [landmarks[mp_pose.PoseLandmark.LEFT_ELBOW.value].x, landmarks[mp_pose.PoseLandmark.LEFT_ELBOW.value].y],
+        [landmarks[mp_pose.PoseLandmark.LEFT_SHOULDER.value].x, landmarks[mp_pose.PoseLandmark.LEFT_SHOULDER.value].y],
+        [landmarks[mp_pose.PoseLandmark.LEFT_HIP.value].x, landmarks[mp_pose.PoseLandmark.LEFT_HIP.value].y])
+
+    right_shoulder_angle = calculate_angle(
+        [landmarks[mp_pose.PoseLandmark.RIGHT_HIP.value].x, landmarks[mp_pose.PoseLandmark.RIGHT_HIP.value].y],
+        [landmarks[mp_pose.PoseLandmark.RIGHT_SHOULDER.value].x, landmarks[mp_pose.PoseLandmark.RIGHT_SHOULDER.value].y],
+        [landmarks[mp_pose.PoseLandmark.RIGHT_ELBOW.value].x, landmarks[mp_pose.PoseLandmark.RIGHT_ELBOW.value].y])
+
+    left_knee_angle = calculate_angle(
+        [landmarks[mp_pose.PoseLandmark.LEFT_HIP.value].x, landmarks[mp_pose.PoseLandmark.LEFT_HIP.value].y],
+        [landmarks[mp_pose.PoseLandmark.LEFT_KNEE.value].x, landmarks[mp_pose.PoseLandmark.LEFT_KNEE.value].y],
+        [landmarks[mp_pose.PoseLandmark.LEFT_ANKLE.value].x, landmarks[mp_pose.PoseLandmark.LEFT_ANKLE.value].y])
+
+    right_knee_angle = calculate_angle(
+        [landmarks[mp_pose.PoseLandmark.RIGHT_HIP.value].x, landmarks[mp_pose.PoseLandmark.RIGHT_HIP.value].y],
+        [landmarks[mp_pose.PoseLandmark.RIGHT_KNEE.value].x, landmarks[mp_pose.PoseLandmark.RIGHT_KNEE.value].y],
+        [landmarks[mp_pose.PoseLandmark.RIGHT_ANKLE.value].x, landmarks[mp_pose.PoseLandmark.RIGHT_ANKLE.value].y])
 
-    # Get the angle between the right hip, shoulder and elbow points.
-    right_shoulder_angle = calculateAngle(landmarks[mp_pose.PoseLandmark.RIGHT_HIP.value],
-                                          landmarks[mp_pose.PoseLandmark.RIGHT_SHOULDER.value],
-                                          landmarks[mp_pose.PoseLandmark.RIGHT_ELBOW.value])
-
-    # Get the angle between the left hip, knee and ankle points.
-    left_knee_angle = calculateAngle(landmarks[mp_pose.PoseLandmark.LEFT_HIP.value],
-                                     landmarks[mp_pose.PoseLandmark.LEFT_KNEE.value],
-                                     landmarks[mp_pose.PoseLandmark.LEFT_ANKLE.value])
-
-    # Get the angle between the right hip, knee and ankle points
-    right_knee_angle = calculateAngle(landmarks[mp_pose.PoseLandmark.RIGHT_HIP.value],
-                                      landmarks[mp_pose.PoseLandmark.RIGHT_KNEE.value],
-                                      landmarks[mp_pose.PoseLandmark.RIGHT_ANKLE.value])
-
-    #----------------------------------------------------------------------------------------------------------------
     # Check for Five-Pointed Star Pose
-    if abs(landmarks[mp_pose.PoseLandmark.LEFT_WRIST.value][1] - landmarks[mp_pose.PoseLandmark.LEFT_HIP.value][1]) < 100 and \
-       abs(landmarks[mp_pose.PoseLandmark.RIGHT_WRIST.value][1] - landmarks[mp_pose.PoseLandmark.RIGHT_HIP.value][1]) < 100 and \
-       abs(landmarks[mp_pose.PoseLandmark.LEFT_ANKLE.value][0] - landmarks[mp_pose.PoseLandmark.RIGHT_ANKLE.value][0]) > 200 and \
-       abs(landmarks[mp_pose.PoseLandmark.LEFT_WRIST.value][0] - landmarks[mp_pose.PoseLandmark.RIGHT_WRIST.value][0]) > 200:
-        label = "Five-Pointed Star Pose"  
-        
-    # Check if it is the warrior II pose or the T pose.
-    # As for both of them, both arms should be straight and shoulders should be at the specific angle.
-    #----------------------------------------------------------------------------------------------------------------
-
-    # Check if the both arms are straight.
-    if left_elbow_angle > 165 and left_elbow_angle < 195 and right_elbow_angle > 165 and right_elbow_angle < 195:
-
-        # Check if shoulders are at the required angle.
-        if left_shoulder_angle > 80 and left_shoulder_angle < 110 and right_shoulder_angle > 80 and right_shoulder_angle < 110:
-
-    # Check if it is the warrior II pose.
-    #----------------------------------------------------------------------------------------------------------------
-
-            # Check if one leg is straight.
-            if left_knee_angle > 165 and left_knee_angle < 195 or right_knee_angle > 165 and right_knee_angle < 195:
-
-                # Check if the other leg is bended at the required angle.
-                if left_knee_angle > 90 and left_knee_angle < 120 or right_knee_angle > 90 and right_knee_angle < 120:
-
-                    # Specify the label of the pose that is Warrior II pose.
-                    label = 'Warrior II Pose'
-
-    #----------------------------------------------------------------------------------------------------------------
-
-    # Check if it is the T pose.
-    #----------------------------------------------------------------------------------------------------------------
-
-            # Check if both legs are straight
-            if left_knee_angle > 160 and left_knee_angle < 195 and right_knee_angle > 160 and right_knee_angle < 195:
-
-                # Specify the label of the pose that is tree pose.
-                label = 'T Pose'
+    if abs(landmarks[mp_pose.PoseLandmark.LEFT_WRIST.value].y - landmarks[mp_pose.PoseLandmark.LEFT_HIP.value].y) < 0.1 and \
+       abs(landmarks[mp_pose.PoseLandmark.RIGHT_WRIST.value].y - landmarks[mp_pose.PoseLandmark.RIGHT_HIP.value].y) < 0.1 and \
+       abs(landmarks[mp_pose.PoseLandmark.LEFT_ANKLE.value].x - landmarks[mp_pose.PoseLandmark.RIGHT_ANKLE.value].x) > 0.2 and \
+       abs(landmarks[mp_pose.PoseLandmark.LEFT_WRIST.value].x - landmarks[mp_pose.PoseLandmark.RIGHT_WRIST.value].x) > 0.2:
+        label = "Five-Pointed Star Pose"
     
-    #----------------------------------------------------------------------------------------------------------------
-
-    # Check if it is the tree pose.
-    #----------------------------------------------------------------------------------------------------------------
-
-    # Check if one leg is straight
-    if left_knee_angle > 165 and left_knee_angle < 195 or right_knee_angle > 165 and right_knee_angle < 195:
-
-        # Check if the other leg is bended at the required angle.
-        if left_knee_angle > 315 and left_knee_angle < 335 or right_knee_angle > 25 and right_knee_angle < 45:
-
-            # Specify the label of the pose that is tree pose.
-            label = 'Tree Pose'
+    # Check for Warrior II pose
+    if 165 < left_elbow_angle < 195 and 165 < right_elbow_angle < 195 and \
+       80 < left_shoulder_angle < 110 and 80 < right_shoulder_angle < 110:
+        if (165 < left_knee_angle < 195 or 165 < right_knee_angle < 195) and \
+           (90 < left_knee_angle < 120 or 90 < right_knee_angle < 120):
+            label = 'Warrior II Pose'
+
+    # Check for T pose
+    if 165 < left_elbow_angle < 195 and 165 < right_elbow_angle < 195 and \
+       80 < left_shoulder_angle < 110 and 80 < right_shoulder_angle < 110 and \
+       160 < left_knee_angle < 195 and 160 < right_knee_angle < 195:
+        label = 'T Pose'
+
+    # Check for Tree Pose
+    if (165 < left_knee_angle < 195 or 165 < right_knee_angle < 195) and \
+       (315 < left_knee_angle < 335 or 25 < right_knee_angle < 45):
+        label = 'Tree Pose'
     
     # Check for Upward Salute Pose
-    if abs(landmarks[mp_pose.PoseLandmark.LEFT_WRIST.value][0] - landmarks[mp_pose.PoseLandmark.LEFT_HIP.value][0]) < 100 and \
-       abs(landmarks[mp_pose.PoseLandmark.RIGHT_WRIST.value][0] - landmarks[mp_pose.PoseLandmark.RIGHT_HIP.value][0]) < 100 and \
-       landmarks[mp_pose.PoseLandmark.LEFT_WRIST.value][1] < landmarks[mp_pose.PoseLandmark.LEFT_SHOULDER.value][1] and \
-       landmarks[mp_pose.PoseLandmark.RIGHT_WRIST.value][1] < landmarks[mp_pose.PoseLandmark.RIGHT_SHOULDER.value][1] and \
-       abs(landmarks[mp_pose.PoseLandmark.LEFT_SHOULDER.value][1] - landmarks[mp_pose.PoseLandmark.RIGHT_SHOULDER.value][1]) < 50:
+    if abs(landmarks[mp_pose.PoseLandmark.LEFT_WRIST.value].x - landmarks[mp_pose.PoseLandmark.LEFT_HIP.value].x) < 0.1 and \
+       abs(landmarks[mp_pose.PoseLandmark.RIGHT_WRIST.value].x - landmarks[mp_pose.PoseLandmark.RIGHT_HIP.value].x) < 0.1 and \
+       landmarks[mp_pose.PoseLandmark.LEFT_WRIST.value].y < landmarks[mp_pose.PoseLandmark.LEFT_SHOULDER.value].y and \
+       landmarks[mp_pose.PoseLandmark.RIGHT_WRIST.value].y < landmarks[mp_pose.PoseLandmark.RIGHT_SHOULDER.value].y and \
+       abs(landmarks[mp_pose.PoseLandmark.LEFT_SHOULDER.value].y - landmarks[mp_pose.PoseLandmark.RIGHT_SHOULDER.value].y) < 0.05:
         label = "Upward Salute Pose"
 
-   # Check for Hands Under Feet Pose
-    if landmarks[mp_pose.PoseLandmark.LEFT_WRIST.value][1] > landmarks[mp_pose.PoseLandmark.LEFT_KNEE.value][1] and \
-       landmarks[mp_pose.PoseLandmark.RIGHT_WRIST.value][1] > landmarks[mp_pose.PoseLandmark.RIGHT_KNEE.value][1] and \
-       abs(landmarks[mp_pose.PoseLandmark.LEFT_WRIST.value][0] - landmarks[mp_pose.PoseLandmark.LEFT_ANKLE.value][0]) < 50 and \
-       abs(landmarks[mp_pose.PoseLandmark.RIGHT_WRIST.value][0] - landmarks[mp_pose.PoseLandmark.RIGHT_ANKLE.value][0]) < 50:
-        label = "Hands Under Feet Pose"      
-        
-       
-    #----------------------------------------------------------------------------------------------------------------
-
-    # Check if the pose is classified successfully
-    if label != 'Unknown Pose':
-
+    # Check for Hands Under Feet Pose
+    if landmarks[mp_pose.PoseLandmark.LEFT_WRIST.value].y > landmarks[mp_pose.PoseLandmark.LEFT_KNEE.value].y and \
+       landmarks[mp_pose.PoseLandmark.RIGHT_WRIST.value].y > landmarks[mp_pose.PoseLandmark.RIGHT_KNEE.value].y and \
+       abs(landmarks[mp_pose.PoseLandmark.LEFT_WRIST.value].x - landmarks[mp_pose.PoseLandmark.LEFT_ANKLE.value].x) < 0.05 and \
+       abs(landmarks[mp_pose.PoseLandmark.RIGHT_WRIST.value].x - landmarks[mp_pose.PoseLandmark.RIGHT_ANKLE.value].x) < 0.05:
+        label = "Hands Under Feet Pose"
+    
+    return label
 
 def detect_and_classify_pose(input_image):
     frame = cv2.cvtColor(input_image, cv2.COLOR_BGR2RGB)
@@ -145,7 +106,7 @@ def detect_and_classify_pose(input_image):
     pose_classification = "No pose detected"
     if results.pose_landmarks:
         mp_drawing.draw_landmarks(frame, results.pose_landmarks, mp_pose.POSE_CONNECTIONS)
-        pose_classification = classify_pose(results.pose_landmarks.landmark)
+        pose_classification = classify_pose(results.pose_landmarks.landmark, frame)
     return frame, pose_classification
 
 iface = gr.Interface(