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import cv2
import mediapipe as mp
import time
from ctypes import cast, POINTER
from comtypes import CLSCTX_ALL
from pycaw.pycaw import AudioUtilities, IAudioEndpointVolume
import numpy as np
cap = cv2.VideoCapture(0)
mpHands = mp.solutions.hands
hands = mpHands.Hands(False)
mpDraw = mp.solutions.drawing_utils
# Initialize volume control
devices = AudioUtilities.GetSpeakers()
interface = devices.Activate(IAudioEndpointVolume._iid_, CLSCTX_ALL, None)
volume = cast(interface, POINTER(IAudioEndpointVolume))
volRange = volume.GetVolumeRange()
minVol = volRange[0]
maxVol = volRange[1]
pTime = 0
cTime = 0
while True:
_, img = cap.read()
img = cv2.flip(img, 1)
imgRGB = cv2.cvtColor(img, cv2.COLOR_BGR2RGB)
results = hands.process(imgRGB)
if results.multi_hand_landmarks:
for handLms in results.multi_hand_landmarks:
lmList = []
for id, lm in enumerate(handLms.landmark):
h, w, c = img.shape
cx, cy = int(lm.x * w), int(lm.y * h)
lmList.append([id, cx, cy])
if id == 4:
cv2.circle(img, (cx, cy), 15, (255, 0, 255), cv2.FILLED)
if id == 8:
cv2.circle(img, (cx, cy), 15, (255, 0, 255), cv2.FILLED)
mpDraw.draw_landmarks(img, handLms, mpHands.HAND_CONNECTIONS)
if len(lmList) != 0:
x1, y1 = lmList[4][1], lmList[4][2]
x2, y2 = lmList[8][1], lmList[8][2]
cv2.line(img, (x1, y1), (x2, y2), (255, 0, 0), 3)
length = np.hypot(x2 - x1, y2 - y1)
# Hand range 50 - 300
# Volume range -65 - 0
vol = np.interp(length, [50, 300], [minVol, maxVol])
volume.SetMasterVolumeLevel(vol, None)
# Show the volume level
volBar = np.interp(length, [50, 300], [400, 150])
volPer = np.interp(length, [50, 300], [0, 100])
cv2.rectangle(img, (50, 150), (85, 400), (0, 255, 0), 3)
cv2.rectangle(img, (50, int(volBar)), (85, 400), (0, 255, 0), cv2.FILLED)
cv2.putText(img, f'{int(volPer)} %', (40, 450), cv2.FONT_HERSHEY_PLAIN, 2, (255, 0, 0), 2)
cTime = time.time()
fps = 1 / (cTime - pTime)
pTime = cTime
cv2.putText(img, str(int(fps)), (10, 78), cv2.FONT_HERSHEY_PLAIN, 3, (255, 255, 0), 3)
cv2.imshow("Image", img)
cv2.waitKey(1)
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