Combine blocks of different images and produce a new image

Question

I have six photographs. I changed them into block structure. Consider an image of size 200x200. 1. I converted into blocks of 10x10 so now I have 400 blocks in total each of siz

Answer 1

I consider you wonder to know how to merge two or more images. In python, when you load an image using opencv, it is stored in numpy arrays. So it is easy using numpy. Below is an example to merge two images. Firstly, load two images:

import cv2
import numpy as np

img1 = cv2.imread('pic1.png')
img2 = cv2.imread('pic2.png')

cv2.imshow('img1', img1)
cv2.imshow('img2', img2)

the two images are like:

Then to merge those two imgs:

# get the height and width of those pictures
h1, w1 = img1.shape[:2]
h2, w2 = img2.shape[:2]

# define the height and width of the merged pictures
h, w = max(h1, h2), w1 + w2
img = np.zeros((h, w, 3), np.uint8)

# paste each img to the right place
img[0:h1, 0:w1] = img1
img[0:h2, w1:] = img2

cv2.imshow('img', img)
cv2.waitKey(0)

the result would be like: