How to Write Images to a Folder in Python

In this tutorial, we will learn how to write images to a folder in Python. We will use two important Python libraries: OpenCV and os. OpenCV handles the image operations while the os library helps us to create a new directory for storing our images.

Step 1: Import the required libraries

For this script, we need opencv and os libraries. You can install OpenCV using pip:

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pip install opencv-python

Then, import these libraries in your Python script:

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import cv2
import os

Step 2: Create a new folder

We will use the os library to create a new directory, where we will save our images.

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folder = 'Images'
os.mkdir(folder)

Step 3: Read and Save the Image

We’ll now read an image using the imread() function of OpenCV, and then write this image to our created folder using the imwrite() function.

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img = cv2.imread('image.jpg')   # Read the image
cv2.imwrite(os.path.join(folder , 'new_image.jpg'), img)

Step 4: Optional Step – Display the Image

If we want to verify if the image has been successfully saved or not, we can display the read image using the imshow function of OpenCV.

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

This will display the image in a new window. You can close this window by pressing any key.

The Full Code

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import cv2
import os
 
folder = 'Images'
os.mkdir(folder)
 
img = cv2.imread('image.jpg')   # Read the image
cv2.imwrite(os.path.join(folder , 'new_image.jpg'), img)
 
cv2.imshow('image', img)
cv2.waitKey(0)

Conclusion

By following these simple steps, you can easily write images to a new folder using Python. Python’s os and OpenCV libraries make this task straightforward and efficient. Happy coding!