Addition and Blending of images using OpenCV in Python Last Updated : 04 Jan, 2023 Improve Improve Like Article Like Save Share Report When we talk about images, we know its all about the matrix either binary image(0, 1), gray scale image(0-255) or RGB image(255 255 255). So additions of the image is adding the numbers of two matrices. In OpenCV, we have a command cv2.add() to add the images. Below is code for Addition of two images using OpenCV : # Python program for blending of # images using OpenCV # import OpenCV file import cv2 # Read Image1 mountain = cv2.imread('F:\mountain.jpg', 1) # Read image2 dog = cv2.imread('F:\dog.jpg', 1) # Blending the images with 0.3 and 0.7 img = cv2.addWeighted(mountain, 0.3, dog, 0.7, 0) # Show the image cv2.imshow('image', img) # Wait for a key cv2.waitKey(0) # Distroy all the window open cv2.distroyAllWindows() But sometimes we do not want to perform simple addition in image, so in this case we have blending. This is also image addition, but different weights are given to images so that it gives a feeling of blending or transparency. Images are added as per the equation below : g(x) = (1 - a)f(x) + af1(x) By varying a from 0 -> 1, you can perform a cool transition between one image to another. Here two images are taken to blend together. First image is given a weight of 0.3 and second image is given 0.7, cv2.addWeighted() applies following equation on the image : img = a . img1 + b . img 2 + y Here y is taken as zero. Below is code for Blending of images using OpenCV : Like Article Suggest improvement Previous Arithmetic operations using OpenCV | Python Next Extracting email addresses using regular expressions in Python Share your thoughts in the comments Add Your Comment Please Login to comment... Similar Reads OpenCV - Alpha blending and masking of images Arithmetic Operations on Images using OpenCV | Set-1 (Addition and Subtraction) Arithmetic Operations on Images using OpenCV | Set-2 (Bitwise Operations on Binary Images) Blending of two videos using Python Python | Create video using multiple images using OpenCV OpenCV - Facial Landmarks and Face Detection using dlib and OpenCV Python | Denoising of colored images using opencv Python | Grayscaling of Images using OpenCV How to Detect Shapes in Images in Python using OpenCV? How to subtract two images using Python-OpenCV ? Like K Kishor Mishra Follow Article Tags : Image-Processing OpenCV Python-OpenCV Project Python Practice Tags : python