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Contents
Pillow – Blur image
To blur an image using Pillow library, you can use Image.filter() function with ImageFilter.BLUR kernel filter.
Steps to blur an image
Follow these steps to blur a given image.
- Import Image, and ImageFilter modules from Pillow library.
- Read input image using Image.open() function.
- Call filter() function on the read Image object and pass ImageFilter.BLUR as argument to the function. The function returns blurred image as PIL.Image.Image object.
- Save the returned image to required location using Image.save() function.
Syntax of filter() function
The syntax of filter() function from PIL.Image module is
PIL.Image.filter(filter_kernel)| Parameter | Description |
|---|---|
| filter_kernel | A filter kernel that applies to the given image. To blur the image, you can use ImageFilter.BLUR filter kernel. |
Returns
The function returns a PIL.Image.Image object.
Examples
1. Blur a given image
In the following example, we read an image test_image.jpg, blur this image using Image.filter() function, and save the blurred image as blurred_image.jpg.
Python Program
from PIL import Image, ImageFilter
# Open the image
image = Image.open("test_image.jpg")
# Blur the image
blurred_image = image.filter(ImageFilter.BLUR)
# Save the resulting image
blurred_image.save("blurred_image.jpg")Original Image [test_image.jpg]
Resulting Image with BLUR effect [blurred_image.jpg]
Summary
In this Python Pillow Tutorial, we learned how to blur a given image using PIL.Image.filter() function, with the help of examples.