openCv_virtual-keyboard.py

#pip install cvzone==1.4.1
#pip install opencv-python
#pip install pynput

import cv2
from cvzone.HandTrackingModule import HandDetector
import cvzone
from time import sleep
from pynput.keyboard import Controller

keyboard = Controller()

detector = HandDetector(detectionCon=0.8)

cap = cv2.VideoCapture(0)
cap.set(3, 2120)
cap.set(4, 1080)


def drawAll(img, buttonList):
    for button in buttonList:
        x, y = button.pos
        w, h = button.size
        cvzone.cornerRect(img, (button.pos[0], button.pos[1], button.size[0], button.size[1]), 20, rt=0)
        cv2.rectangle(img, button.pos, (x + w, y + h), (0, 255, 105), cv2.FILLED)
        cv2.putText(img, button.text, (x + 20, y + 65),
                    cv2.FONT_HERSHEY_PLAIN, 4, (255, 255, 255), 4)
    return img


class Button():
    def __init__(self, pos, text, size=[85, 85]):
        self.pos = pos
        self.size = size
        self.text = text

keys = [["Q", "W", "E", "R", "T", "Y", "U", "I", "O", "P"],
        ["A", "S", "D", "F", "G", "H", "J", "K", "L", ";"],
        ["Z", "X", "C", "V", "B", "N", "M", ",", ".", "\t"]]


buttonList = []
for i in range(len(keys)):
    for j, key in enumerate(keys[i]):
        buttonList.append(Button([100 * j + 50, 100 * i + 50], key))



while True:
    res, img = cap.read()
    img = detector.findHands(img)
    lmList, bboxInfo = detector.findPosition(img)

    img = drawAll(img, buttonList)

    if lmList:
        for button in buttonList:
            x, y = button.pos
            w, h = button.size

            if x < lmList[8][0] < x + w and y < lmList[8][1] < y + h:
                cv2.rectangle(img, (x - 5, y - 5), (x + w + 5, y + h + 5), (175, 0, 175), cv2.FILLED)
                cv2.putText(img, button.text, (x + 20, y + 65),
                            cv2.FONT_HERSHEY_PLAIN, 4, (255, 255, 255), 4)

                l, _, _ = detector.findDistance(8, 12, img, draw=False)
                print(l)

                ## when clicked
                if l < 45:
                    keyboard.press(button.text)
                    cv2.rectangle(img, button.pos, (x + w, y + h), (0, 0, 255), cv2.FILLED)
                    cv2.putText(img, button.text, (x + 20, y + 65), cv2.FONT_HERSHEY_PLAIN, 4, (255, 255, 255), 4)
                    sleep(0.20)




    cv2.imshow("Image", img)
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

cv2.destroyAllWindows()