07.Advanced_VolumeHandControl_2.0.py

import cv2
import time
import numpy as np
import Advanced_HandTrackingModule as A_HTM 
import math
from Foundation import NSAppleScript as NSA

##### parameter
pTime = 0
area = 0
#### Video Controler
cap = cv2.VideoCapture(0)

#### Object Detection Module
detector = A_HTM.handDetector(maxHands=1)


while True:

    # Find Hand
    success, img = cap.read()
    img = detector.findHands(img, draw=False)
    lmList, bbox = detector.findPosition(img, Bdraw=True)
    detector.displayVolume(img, color='r')

    if len(lmList) != 0:
        fingers = detector.fingersUp()
        print(sum(fingers))
        if sum(fingers) <= 2:
            while True:
                success, img = cap.read()
                img = detector.findHands(img, draw=False)
                lmList, bbox = detector.findPosition(img, Cdraw=True)
                #cv2.circle(img, lmList[9], 20, (255,255,255))
                
                # Display Volume
                detector.displayVolume(img, color='g')
                # Hand in screen,
                if len(lmList) != 0:
                    # Find Distance Between index and Thumb (for control volume with hand gesture)
                    length, img, lineInfo = detector.findDistance(4,8,img)
                    # print(length)

                    # Convert Volume 
                    range30to230 = lambda x : 30 if x <= 30 else 230 if x >= 230 else x
                    length100 = int((range30to230(length)-30)/2)
                    
                    script = NSA.alloc().initWithSource_('set volume output volume {}'.format(length100))
                    script.executeAndReturnError_(None)

                    fingers = detector.fingersUp()
                    print(sum(fingers))
                    if sum(fingers) >= 4:
                        break


                # Frame rate
                cTime = time.time()
                fps = 1/(cTime - pTime)
                pTime = cTime
                cv2.putText(img, 'FPS: {}'.format(int(fps)), (40, 50), cv2.FONT_HERSHEY_COMPLEX_SMALL, 1, (86,50,19), 2)
                cv2.imshow("Img", img)
                cv2.waitKey(1)


    # Frame rate
    cTime = time.time()
    fps = 1/(cTime - pTime)
    pTime = cTime
    cv2.putText(img, 'FPS: {}'.format(int(fps)), (40, 50), cv2.FONT_HERSHEY_COMPLEX_SMALL, 1, (0,0,255), 2)
    cv2.imshow("Img", img)
    cv2.waitKey(1)