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volume_control.py
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volume_control.py
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import pycaw.pycaw as pycaw
from ctypes import cast, POINTER
from comtypes import CLSCTX_ALL
from pycaw.pycaw import AudioUtilities, IAudioEndpointVolume
import mediapipe as mp
import cv2, math
# Get the volume control interface
devices = AudioUtilities.GetSpeakers()
interface = devices.Activate(IAudioEndpointVolume._iid_, CLSCTX_ALL, None)
# Control the volume
volume = cast(interface, POINTER(IAudioEndpointVolume))
# volume.SetMasterVolumeLevel(-40.0, None) # Set the volume level (-20.0 dB in this example)
per = 10
cap = cv2.VideoCapture(0)
mp_hands = mp.solutions.hands
mp_draw = mp.solutions.drawing_utils
hands = mp_hands.Hands()
def calculate_distance(x1, y1, x2, y2):
distance = math.sqrt((x2 - x1)**2 + (y2 - y1)**2)
return distance
while True:
success, img = cap.read()
imgRGB = cv2.cvtColor(img, cv2.COLOR_BGR2RGB)
imgRGB = cv2.flip(imgRGB,1)
results = hands.process(imgRGB)
img = cv2.flip(img, 1)
if results.multi_hand_landmarks:
for handLM in results.multi_hand_landmarks:
thumb_fingure = None
index_fingure = None
for id,lm in enumerate(handLM.landmark):
h, w, c = img.shape
cx, cy = int(lm.x*w), int(lm.y*h)
if id == 8:
cx, cy = int(lm.x*w), int(lm.y*h)
cv2.circle(center=(cx,cy), img=img, color=(0,255,0), radius=20, thickness=-1)
index_fingure = (cx, cy)
if id == 4:
cv2.circle(center=(cx,cy), img=img, color=(0,255,0), radius=20, thickness=-1)
thumb_fingure = (cx,cy)
if index_fingure and thumb_fingure:
cv2.line(pt1=index_fingure,pt2=thumb_fingure, img=img, color=(0,255,0), thickness=2)
res = calculate_distance(index_fingure[0],index_fingure[1],thumb_fingure[0],thumb_fingure[1])
level = -60
if 20<res<30:
per = 200
level = -60
elif 30<= res < 50:
per=190
level = -50
elif 50<= res < 100:
per = 175
level = -40
elif 100<= res < 130:
per = 150
level = -30
elif 130 <= res < 150:
per=125
level = -20
elif 150< res<=180:
per=100
level = -10
elif 180< res<=200:
per=75
level = -7
elif 200< res<=230:
per = 50
level = -4
elif 230< res<=250:
per=25
level = -2
elif 250< res:
per = 10
level = 0
volume.SetMasterVolumeLevel(level, None)
mp_draw.draw_landmarks(img, handLM, mp_hands.HAND_CONNECTIONS)
cv2.rectangle(pt1=(10,per),pt2=(50,200), img=img, color=(0,0,255), thickness=-1)
cv2.rectangle(pt1=(10,10),pt2=(50,200), img=img, color=(0,0,0), thickness=2)
cv2.imshow("frame", img)
if cv2.waitKey(1) & 0xFF == ord('q'):
break