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import gradio as gr
import cv2
import mediapipe as mp
import numpy as np
# Initialize mediapipe pose class
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
# 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.
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])
# 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'
#----------------------------------------------------------------------------------------------------------------
# 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 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:
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':
def detect_and_classify_pose(input_image):
frame = cv2.cvtColor(input_image, cv2.COLOR_BGR2RGB)
results = pose.process(frame)
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)
return frame, pose_classification
iface = gr.Interface(
fn=detect_and_classify_pose,
inputs="image",
outputs=["image", "text"],
title="Live Yoga Pose Detection and Classification",
description="This app detects and classifies yoga poses from the live camera feed using MediaPipe.",
)
iface.launch()