my_functions.py

import mediapipe as mp
import cv2
import numpy as np

def draw_landmarks(image, results):
    mp.solutions.drawing_utils.draw_landmarks(image, results.left_hand_landmarks, mp.solutions.holistic.HAND_CONNECTIONS)
    mp.solutions.drawing_utils.draw_landmarks(image, results.right_hand_landmarks, mp.solutions.holistic.HAND_CONNECTIONS)

def image_process(image, model):
    image.flags.writeable = False
    image = cv2.cvtColor(image, cv2.COLOR_BGR2RGB)
    results = model.process(image)
    image.flags.writeable = True
    image = cv2.cvtColor(image, cv2.COLOR_RGB2BGR)
    return results

def keypoint_extraction(results):
    lh = np.array([[res.x, res.y, res.z] for res in results.left_hand_landmarks.landmark]).flatten() if results.left_hand_landmarks else np.zeros(63)
    rh = np.array([[res.x, res.y, res.z] for res in results.right_hand_landmarks.landmark]).flatten() if results.right_hand_landmarks else np.zeros(63)
    return np.concatenate([lh, rh])