In this lesson we want to learn about Python Pillow for Image Processing.
What is Pillow ?
Pillow is an open source Python library for image processing that is fork of Python Imaging Library (PIL). it provides comprehensive and large set of tools for working with images, including opening and saving images, resizing, cropping, transforming and converting between image formats.
Pillow is compatible with Python 2.7, as well as Python 3.x, and is designed to be easy to use and highly flexible. it supports different image formats including PNG, JPEG, BMP, GIF and TIFF. also Pillow is well documented with large and active community of users, and it makes it popular choice for developers working with images in Python.
Pillow provides powerful set of image processing capabilities, and is used in different applications, including web development, scientific computing and computer vision. if you are working on small personal project or developing large scale application, Pillow is library that you can use to easily and effectively work with images in Python. to install the Pillow library in Python, you can use pip package manager. this is the command to install Pillow:
pip install Pillow
Python Pillow for Image Processing
Python Pillow library is fork of the Python Imaging Library (PIL), and provides powerful set of image processing capabilities. with Pillow, you can do things like opening and saving images, resizing, cropping and converting between image formats.
This is an example of how you can use Pillow to work with images in Python:
from PIL import Image
# Open image
img = Image.open('example.jpg')
# Get basic information about image
print(img.format, img.size, img.mode)
# Resiz image
img_resized = img.resize((400, 400))
# Save resized image
# Crop image
img_cropped = img.crop((100, 100, 300, 300))
# Convert image to grayscale
img_grayscale = img.convert('L')
# Save the grayscale image
In this example, the Image class from the PIL module is imported, and an image is opened using the open method. the basic information about the image is printed, including the format, size and mode. the image is then resized and saved, cropped, and converted to grayscale and resulting images are shown and saved.
with Pillow, you can do much more than this, including adding watermarks, transforming images and working with image masks and layers. to learn more, you can check out the Pillow documentation at https://pillow.readthedocs.org/en/stable/index.html.