5).Virtual_Keyboard.py

import cv2
import numpy as np

keyboard = np.zeros((1000,1500,3),np.uint8)


def letter(x, y, text):
    # Keys
    # Each key is simply a rectangle containing some text. So we define the sizes and we draw the rectangle.
    width = 200
    height = 200
    th = 3  # thickness
    cv2.rectangle(keyboard, (x + th, y + th), (x + width - th, y + height - th), (255, 0, 0), th)

    # Inside the rectangle now we put the letter. So we define the sizes and style of the text and we center it.
    # Text settings
    font_letter = cv2.FONT_HERSHEY_PLAIN
    font_scale = 10
    font_th = 4
    text_size = cv2.getTextSize(text, font_letter, font_scale, font_th)[0]
    width_text, height_text = text_size[0], text_size[1]
    text_x = int((width - width_text) / 2) + x
    text_y = int((height + height_text) / 2) + y
    cv2.putText(keyboard, text, (text_x, text_y), font_letter, font_scale, (255, 0, 0), font_th)

letter(0, 0, "A")
letter(200, 0, "B")
letter(400, 0, "C")

cv2.imshow("KEYBOARD",keyboard)
cv2.waitKey(0)
cv2.destroyAllWindows()