add_watermark.py

import cv2

img = cv2.imread('diego-jimenez-A-NVHPka9Rk-unsplash.jpg')

watermark = cv2.imread("Watermark.jpg")

percent_of_scaling = 20

new_width = int(img.shape[1] * percent_of_scaling / 100)

new_height = int(img.shape[0] * percent_of_scaling / 100)

new_dim = (new_width, new_height)

resized_img = cv2.resize(img, new_dim, interpolation=cv2.INTER_AREA)

wm_scale = 40

wm_width = int(watermark.shape[1] * wm_scale / 100)

wm_height = int(watermark.shape[0] * wm_scale / 100)

wm_dim = (wm_width, wm_height)

resized_wm = cv2.resize(watermark, wm_dim, interpolation=cv2.INTER_AREA)

h_img, w_img, _ = resized_img.shape

center_y = int(h_img / 2)

center_x = int(w_img / 2)

h_wm, w_wm, _ = resized_wm.shape

top_y = center_y - int(h_wm / 2)

left_x = center_x - int(w_wm / 2)

bottom_y = top_y + h_wm

right_x = left_x + w_wm

roi = resized_img[top_y:bottom_y, left_x:right_x]

result = cv2.addWeighted(roi, 1, resized_wm, 0.3, 0)

resized_img[top_y:bottom_y, left_x:right_x] = result

filename = 'Watermakred_Image.jpg'

cv2.imwrite(filename, resized_img)

cv2.imshow("Resized Input Image", resized_img)

cv2.waitKey(0)

cv2.destroyAllWindows()

# click on show files to view the output image