python/Hand.py at main · Prathamvv13/python · GitHub

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import cv2
import mediapipe as mp

mphands = mp.solutions.hands
hands = mphands.Hands()
mp_drawing = mp.solutions.drawing_utils
cap = cv2.VideoCapture(0)

while True:
    _, frame = cap.read()
    h, w, c = frame.shape
    framergb = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
    result = hands.process(framergb)
    hand_landmarks = result.multi_hand_landmarks
    if hand_landmarks:
        for handLMs in hand_landmarks:
            x_max = 0
            y_max = 0
            x_min = w
            y_min = h
            for lm in handLMs.landmark:
                x, y = int(lm.x * w), int(lm.y * h)
                if x > x_max:
                    x_max = x
                if x < x_min:
                    x_min = x
                if y > y_max:
                    y_max = y
                if y < y_min:
                    y_min = y
                diffx = x_max-x_min
                diffy = y_max-y_min
                #print(diffx, diffy)
                x_min = int(x_min - 0.02*diffx)
                x_max = int(x_max + 0.02*diffx)
                y_max =int( y_max + 0.02*diffy)
                y_min = int(y_min - 0.02*diffy)
            #cv2.rectangle(frame, (x_min, y_min), (x_max, y_max), (0, 255, 0), 2)
            img = frame[x_min:x_max,y_min:y_max]
            mp_drawing.draw_landmarks(frame, handLMs, mphands.HAND_CONNECTIONS)
    cv2.imshow("Frame", frame)

    key = cv2.waitKey(1)
    if key == 27:
        break
cap.release()
cv2.destroyAllWindows()