Volume Control with Gestures

Gesture Volume Control/README.md

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+# 🎚️ Gesture Volume Control
+
+Control your system volume with hand gestures using your webcam!  
+This project uses **OpenCV**, **MediaPipe**, and **pycaw** to detect your hand in real time and map the distance between your thumb and index finger to system volume.
+
+## ⚙️ Requirements
+```bash
+pip install opencv-python mediapipe pycaw comtypes
+```
+
+Check out my github: [10mudassir007](https://github.com/10mudassir007)

Gesture Volume Control/volume_control.py

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+import cv2
+import mediapipe as mp
+from ctypes import cast, POINTER
+from comtypes import CLSCTX_ALL
+from pycaw.pycaw import AudioUtilities, IAudioEndpointVolume
+import math
+
+# Mediapipe hands
+mp_hands = mp.solutions.hands
+hands = mp_hands.Hands(max_num_hands=1)
+mp_draw = mp.solutions.drawing_utils
+
+# Audio setup
+devices = AudioUtilities.GetSpeakers()
+interface = devices.Activate(IAudioEndpointVolume._iid_, CLSCTX_ALL, None)
+volume = cast(interface, POINTER(IAudioEndpointVolume))
+vol_range = volume.GetVolumeRange()  # minVol, maxVol, step
+
+# Phone camera
+cap = cv2.VideoCapture(0) 
+
+while True:
+    ret, frame = cap.read()
+    if not ret:
+        break
+    frame = cv2.convertScaleAbs(frame, alpha=1.2, beta=30)
+    frame = cv2.flip(frame, 1)
+    rgb = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
+    results = hands.process(rgb)
+
+    # Resize to 360x360
+    frame = cv2.resize(frame, (640, 480))
+
+    if results.multi_hand_landmarks:
+        for handLms in results.multi_hand_landmarks:
+            mp_draw.draw_landmarks(frame, handLms, mp_hands.HAND_CONNECTIONS)
+
+            # Thumb and index finger tips
+            thumb_tip = handLms.landmark[mp_hands.HandLandmark.THUMB_TIP]
+            index_tip = handLms.landmark[mp_hands.HandLandmark.INDEX_FINGER_TIP]
+
+            h, w, _ = frame.shape
+            x1, y1 = int(thumb_tip.x * w), int(thumb_tip.y * h)
+            x2, y2 = int(index_tip.x * w), int(index_tip.y * h)
+
+            cv2.circle(frame, (x1, y1), 8, (255, 0, 0), cv2.FILLED)
+            cv2.circle(frame, (x2, y2), 8, (255, 0, 0), cv2.FILLED)
+            cv2.line(frame, (x1, y1), (x2, y2), (0, 255, 0), 2)
+
+            # Distance between fingers → volume
+            length = math.hypot(x2 - x1, y2 - y1)
+            min_vol, max_vol, _ = vol_range
+            vol = (length / 200) * (max_vol - min_vol) + min_vol
+            vol = max(min(vol, max_vol), min_vol)
+            volume.SetMasterVolumeLevel(vol, None)
+
+    cv2.imshow("Hand Volume Control", frame)
+    if cv2.waitKey(1) & 0xFF == ord("q"):
+        break
+
+cap.release()
+cv2.destroyAllWindows()