draw.py

# pylint:disable=no-member

import cv2 as cv
import numpy as np

blank = np.zeros((500, 500, 3), dtype="uint8")
cv.imshow("Blank", blank)

# 1. Paint the image a certain colour
blank[200:300, 300:400] = 0, 0, 255
cv.imshow("Green", blank)

# 2. Draw a Rectangle
cv.rectangle(
    blank, (0, 0), (blank.shape[1] // 2, blank.shape[0] // 2), (0, 255, 0), thickness=-1
)
cv.imshow("Rectangle", blank)

# 3. Draw A circle
cv.circle(
    blank, (blank.shape[1] // 2, blank.shape[0] // 2), 40, (0, 0, 255), thickness=-1
)
cv.imshow("Circle", blank)

# 4. Draw a line
cv.line(blank, (100, 250), (300, 400), (255, 255, 255), thickness=3)
cv.imshow("Line", blank)

# 5. Write text
cv.putText(
    blank,
    "Hello, my name is Nilooooo!!!",
    (0, 225),
    cv.FONT_HERSHEY_TRIPLEX,
    1.0,
    (0, 255, 0),
    2,
)
cv.imshow("Text", blank)

cv.waitKey(0)