HandTrackingModule.py

import cv2
import mediapipe as mp
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(
            static_image_mode=self.mode,
            max_num_hands=self.maxHands,
            min_detection_confidence=self.detectionCon,
            min_tracking_confidence=self.trackCon
        )
        self.mpDraw = mp.solutions.drawing_utils

    def findHands(self, img, draw=True):
        imgRGB = cv2.cvtColor(img, cv2.COLOR_BGR2RGB)
        self.results = self.hands.process(imgRGB)

        if self.results.multi_hand_landmarks:
            for handLms in self.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


def main():
    pTime = 0
    cTime = 0
    cap = cv2.VideoCapture(0)
    if not cap.isOpened():
        print("Error: Could not open video stream.")
        return

    detector = HandDetector()

    while True:
        success, img = cap.read()
        if not success:
            print("Error: Failed to capture image.")
            break

        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, f'FPS: {int(fps)}', (10, 70), cv2.FONT_HERSHEY_PLAIN, 3, (255, 0, 255), 3)
        cv2.imshow("Image", img)

        if cv2.waitKey(1) & 0xFF == ord('q'):
            break

    cap.release()
    cv2.destroyAllWindows()

if __name__ == "__main__":
    main()