Python OpenCV Arithmetic Operations On Images

In this Python OpenCV article i want to show you doing of Arithmetic Operations On Images in OpenCV, as in the previous article about OpenCV we have learned How To Write A Video In OpenCV, so there are two ways that you can do Arithmetic Operations like Addition,Subtraction,Multiplication on Images in Opencv The first way is manually that you can add or Subtract two images manually but in this way the result will not be good, the second way is the built in methods for opencv that you can use, for more information you can check Arithmetic Operations on Images

Also you can check Python GUI Development Tutorials in the below link.

1: PyQt5 GUI Development Tutorials

2: TKinter GUI Development Tutorials

3: Pyside2 GUI Development Tutorials

4: Kivy GUI Development Tutorials

So this is the complete code for this article

import cv2


img1 = cv2.imread("lena.tif")
img2 = cv2.imread("woman.tif")

add = img1 + img2
subtraction = img1-img2

add1 = cv2.add(img1, img2)
print(add1)
sub2 = cv2.subtract(img1, img2)
print(sub2)

cv2.imshow("Addition", add)
cv2.imshow("Subtraction", subtraction)
cv2.imshow("Addition Two", add1)
cv2.imshow("Sub 2", sub2)


cv2.waitKey(0)
cv2.destroyAllWindows()

import cv2

img1 = cv2.imread("lena.tif")

img2 = cv2.imread("woman.tif")

add = img1 + img2

subtraction = img1-img2

add1 = cv2.add(img1, img2)

print(add1)

sub2 = cv2.subtract(img1, img2)

print(sub2)

cv2.imshow("Addition", add)

cv2.imshow("Subtraction", subtraction)

cv2.imshow("Addition Two", add1)

cv2.imshow("Sub 2", sub2)

cv2.waitKey(0)

cv2.destroyAllWindows()

So in the above code first we have loaded the images that we want to add.

img1 = cv2.imread("lena.tif")
img2 = cv2.imread("woman.tif")

1 2	img1 = cv2.imread("lena.tif") img2 = cv2.imread("woman.tif")

In these lines of codes we have used manually Arithmetic Operations.

add = img1 + img2
subtraction = img1-img2

1 2	add = img1 + img2 subtraction = img1-img2

And this is the second way code , that we receive a better result for the operations. and you can see that in here we have used the built functions for our operations.

add1 = cv2.add(img1, img2)
print(add1)
sub2 = cv2.subtract(img1, img2)
print(sub2)

add1 = cv2.add(img1, img2)

print(add1)

sub2 = cv2.subtract(img1, img2)

print(sub2)

An at the end we are showing the images, basically we are subtracting and adding the images.

cv2.imshow("Addition", add)
cv2.imshow("Subtraction", subtraction)
cv2.imshow("Addition Two", add1)
cv2.imshow("Sub 2", sub2)

cv2.imshow("Addition", add)

cv2.imshow("Subtraction", subtraction)

cv2.imshow("Addition Two", add1)

cv2.imshow("Sub 2", sub2)

If you run the code this will be the result

Python OpenCV Arithmetic Operations On Images

Also you can watch the complete video for this article

Subscribe and Get Free Video Courses & Articles in your Email