HandTrackingModule.py

import mediapipe as mp
import cv2
import time




class handDetector():
  def __init__(self, mode = False, maxHands = 2, detectionCon = 0.5, trackCon = 0.5):
    self.mode = mode
    self.maxHands = maxHands
    self.detectionCon = detectionCon
    self.trackCon = trackCon
    
    self.mpHands = mp.solutions.hands
    self.hands = self.mpHands.Hands(self.mode, self.maxHands, self.detectionCon, self.trackCon)
    
    self.mpDraw = mp.solutions.drawing_utils
    
  
  def findHands(self, img, draw = True):
    imgRGB = cv2.cvtColor(img, cv2.COLOR_BGR2RGB)
    results = self.hands.process(imgRGB)
    if results.multi_hand_landmarks:
      for handLms in results.multi_hand_landmarks:
        if draw:
          self.mpDraw.draw_landmarks(img, handLms, self.mpHands.HAND_CONNECTIONS)
    return img
        
        
    
  def findPosition(self, img, handNo =0, draw = True):
    lmList = []
    if self.results.multi_hand_landmarks:
      myHand = self.results.multi_hand_landmarks[handNo]
    
      for id, lm in enumerate(myHand.landmark):
            # print(id, lm)
            h , w, c = img.shape
            cx, cy = int(lm.x*w), int(lm.y*h)
            # print(id, cx, cy)
            lmList.append([id , cx , cy])
            if draw:
              cv2.circle(img, (cx,cy), 15, (255,0,255), cv2.FILLED)
      
    return lmList
       
    







  
  # print(results.multi_hand_landmarks)

        
        
      
     
      
  
  
  
  
  



def main():
    pTime = 0
    cTime = 0
    cap = cv2.VideoCapture(1)
    detector = handDetector()
    while True:
        success, img = cap.read()
        img = detector.findHands(img)
        lmList = detector.findPosition(img)
        if len(lmList) != 0:
            print(lmList[4])
        cTime = time.time()
        fps = 1 / (cTime - pTime)
        pTime = cTime
        cv2.putText(img, str(int(fps)), (10, 70), cv2.FONT_HERSHEY_PLAIN, 3,
                    (255, 0, 255), 3)
        cv2.imshow("Image", img)
        cv2.waitKey(1)
if __name__ == "__main__":
    main()