Getting Picture Size with Python Imaging Library (PIL)

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Summary: Learn how to get the picture size using Python Imaging Library (PIL). This guide provides step-by-step instructions to retrieve an image's dimensions easily.
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Getting Picture Size with Python Imaging Library (PIL)

Introduction

The Python Imaging Library (PIL) is a robust library that offers extensive file format support, efficient internal representation, and powerful image processing capabilities. One of its common applications is determining the size of an image. Whether for pre-processing steps in machine learning, resizing, or validation purposes in web development, knowing the exact dimensions of an image is often essential.

What is PIL?

PIL, originally developed by Fredrik Lundh, is an image processing library that provides functionalities for opening, manipulating, and saving different image file formats. It has since been succeeded by Pillow, an actively maintained fork of PIL that retains much of the original library's function while introducing new features and improvements.

Steps to Get Picture Size with PIL

Here’s a simple guide to help you get started with retrieving the dimensions of an image using the PIL (or Pillow) library.

Step 1: Install Pillow

First, ensure you have Pillow installed. If not, you can install it via pip:

[[See Video to Reveal this Text or Code Snippet]]

Step 2: Open the Image

Next, you need to open the image using the Image class from PIL:

[[See Video to Reveal this Text or Code Snippet]]

Step 3: Get the Image Size

Once the image is loaded, you can easily access its size using the size attribute:

[[See Video to Reveal this Text or Code Snippet]]

The size attribute returns a tuple representing the dimensions of the image in pixels – the first element is the width, and the second is the height.

Conclusion

Retrieving the size of an image using the Python Imaging Library (PIL) is straightforward and requires just a few lines of code. Whether you are manipulating images for web development, machine learning, or another application, knowing the image dimensions is a fundamental step. With PIL/Pillow, this process becomes intuitive and efficient.

With the guide provided above, you should be able to determine the size of any image file easily. Happy coding!