Adding mosaics to images using the PIL library in Python

I. What is Pillow

Pillow is a Python image processing library, which is a branch of the Python Imaging Library (PIL).Pillow provides a wide range of image processing features, including image format conversion, image enhancement, image filtering, image resizing, image compositing, and more. Using Pillow, developers can easily process images and integrate them into their Python applications.Pillow is compatible with Python 2 and 3, and supports a wide range of operating systems, including Windows, Linux, and Mac OS X, among others. It is widely used in web development, data analysis, machine learning and other fields.

II. Installation of the PIL library

pip install pillow

III. Viewing the PIL library version

pip show pillow

Name: Pillow
Version: 9.4.0
Summary: Python Imaging Library (Fork)
Home-page:
Author: Alex Clark (PIL Fork Author)
Author-email: aclark@
License: HPND
Requires:
Required-by: image, imageio, matplotlib, pytesseract, wordcloud

IV. Methods of use

1. Introduction of libraries

from PIL import Image, ImageDraw

2. Define the image path

local = '/Users/kkstar/Downloads/video/pic/'

3. Open the picture that needs to be mosaicked

image = (local+'')

4. Get the size of the picture

width, height = 

5. Create a new picture object

mosaic_image = ('RGB', (width, height), (0, 0, 0))

6. Define the width and height of the block

block_size = 10

7. Loop through each block in the image for processing

# Loop through each block in the image
for x in range(0, width, block_size):
    for y in range(0, height, block_size):
         # Intercept the area of the current block
        box = (x, y, x+block_size, y+block_size)
        block = (box)
        # Calculate the average color of the current block
        r, g, b = ((1, 1)).getpixel((0, 0))
        color = (r, g, b)
        # Drawing mosaic blocks on a new picture
        draw = (mosaic_image)
        (box, fill=color)

8. Save mosaic pictures

mosaic_image.save(local+'')

9. Effects

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