watermark_18-03-2023.py

import cv2
import numpy as np
import glob
import os

logo = cv2.imread("logo.png")#Declare path of logo.
h_logo, w_logo, _ = logo.shape

images_path = glob.glob("images/*.*")#Declare the path of original images.
print("Adding watermark.....")
for img_path in images_path:
    img = cv2.imread(img_path)
    h_img, w_img, _ = img.shape

     # Get the center of the original.It's the location where we will place the watermark
    center_y = int(h_img / 2)
    center_x = int(w_img / 2)
    top_y = center_y - int(h_logo / 2)
    left_x = center_x - int(w_logo / 2)
    bottom_y = top_y + h_logo
    right_x = left_x + w_logo

     # Get ROI
    roi = img[top_y: bottom_y, left_x: right_x]
    # Add the Logo to the Roi
    result = cv2.addWeighted(roi, 1, logo, 0.7, 0)
    # Replace the ROI on the image
    img[top_y: bottom_y, left_x: right_x] = result

     # Get filename and save the image
    filename = os.path.basename(img_path)
    cv2.imwrite("images/watermarked_" + filename, img)