Hands-On Computer Vision with Julia

Explore the various packages in Julia that support image processing and build neural networks for video processing and object tracking.

Key Features

• Build a full-fledged image processing application using JuliaImages
• Perform basic to advanced image and video stream processing with Julia's APIs
• Understand and optimize various features of OpenCV with easy examples

Book Description

Hands-On Computer Vision with Julia is a thorough guide for developers who want to get started with building computer vision applications using Julia. Julia is well suited to image processing because it's easy to use and lets you write easy-to-compile and efficient machine code.

This book begins by introducing you to Julia's image processing libraries such as Images.jl and ImageCore.jl. You'll get to grips with analyzing and transforming images using JuliaImages; some of the techniques discussed include enhancing and adjusting images. As you make your way through the chapters, you'll learn how to classify images, cluster them, and apply neural networks to solve computer vision problems. In the concluding chapters, you will explore OpenCV applications to perform real-time computer vision analysis, for example, face detection and object tracking. You will also understand Julia's interaction with Tesseract to perform optical character recognition and build an application that brings together all the techniques we introduced previously to consolidate the concepts learned.

By end of the book, you will have understood how to utilize various Julia packages and a few open source libraries such as Tesseract and OpenCV to solve computer vision problems with ease.

What you will learn

• Analyze image metadata and identify critical data using JuliaImages
• Apply filters and improve image quality and color schemes
• Extract 2D features for image comparison using JuliaFeatures
• Cluster and classify images with KNN/SVM machine learning algorithms
• Recognize text in an image using the Tesseract library
• Use OpenCV to recognize specific objects or faces in images and videos
• Build neural network and classify images with MXNet

Who This Book Is For

Hands-On Computer Vision with Julia is for Julia developers who are interested in learning how to perform image processing and want to explore the field of computer vision. Basic knowledge of Julia will help you understand the concepts more effectively.

Table of Contents

1. Getting Started with JuliaImages
2. Image Enhancement
3. Image Adjustment
4. Image Segmentation
5. Image Representation
6. Introduction to Neural Networks
7. Using Pre-Trained Neural Networks
8. Open CV
9. Case Study: Book cover classification, analysis and recognition

Dmitrijs Cudihins is a skilled data scientist, machine learning engineer, and software developer with more than eight years' commercial experience. His started off as a web developer, but later switched to data science and computer vision. He has been a senior data scientist for the last three years, providing consultancy services for a state-owned enterprise. There, he uses Julia to automate communication with citizens, applying different CV techniques and scanned image processing.