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Hands-On Image Processing and Computer Vision with Python

Hands-On Image Processing and Computer Vision with Python - Second Edition

By : Sandipan Dey
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Hands-On Image Processing and Computer Vision with Python

Hands-On Image Processing and Computer Vision with Python

By: Sandipan Dey

Overview of this book

Analyzing and understanding visual data has become essential in modern applications such as healthcare, security, remote sensing, manufacturing, and digital media. This book provides a hands-on guide to image processing and computer vision using Python, following a practical approach that bridges theory with implementation. As you progress through the chapters, you will develop proficiency in Python 3 and implement algorithms spanning classical image processing, modern computer vision, and state-of-the-art (SOTA) deep learning and generative AI. The book covers image enhancement, restoration, filtering, segmentation, feature extraction, classification, and object detection using libraries including NumPy, OpenCV, PIL, SciPy, scikit-image, scikit-learn, TensorFlow, Keras, and PyTorch. Advanced chapters introduce CNNs, Vision Transformers, transformer-based segmentation, modern detection frameworks, GANs, diffusion models, foundation models, image-to-image translation, super-resolution, and multimodal vision-language understanding. Real-world applications span medical imaging, remote sensing, banking, augmented reality, autonomous driving, industrial inspection, and intelligent visual analytics. By the end of the book, you will be equipped to design and implement real-world visual computing solutions. *Email sign-up and proof of purchase required
Table of Contents (20 chapters)
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1
Part 1: Foundations of Digital Image Processing
8
Part 2: Image Enhancement and Restoration Techniques
12
Part 3: Computer Vision and Generative AI
18
Other Books You May Enjoy
19
Index

Basic image manipulation

Different Python libraries can be used for basic image manipulation. Almost all the libraries store an image in a NumPy ndarray (2D array for grayscale, 3D array for RGB image, for example). As explained earlier, the following image shows the positive x and y directions (origin being the top-left corner of the image 2D array) for the colored Mona Lisa image:

Figure 1.33 – Image versus NumPy 2D array coordinates

Figure 1.33 – Image versus NumPy 2D array coordinates

Common image manipulation operations

Digital image manipulation involves modifying images to enhance appearance, change composition, or create visual effects. Common operations include cropping, resizing, rotating, color adjustment, sharpening, blurring, warping, and applying filter effects such as sepia or grayscale. More advanced manipulations include adding text, removing objects, cloning image regions, and merging multiple images into composite scenes. Many of these techniques will be implemented throughout this book using...

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