In this chapter, we started with initial image analysis by applying various manipulation. We began discussion with point filters and extending to more complex linear as well as non linear filters. We saw the visualization of results on varying parameters like kernel size, and so on. The non-linear filters, like histogram equalization, can further tune images which are difficult to do with linear filters. Image gradients, introduced in this chapter, are quite common in complex tasks of object detection, image segmentation, and so on. We also saw various transformation methods like translation, rotation and affine transformation with visualization of the output given different choice of parameters. The various transformations can applied in cascaded fashion to create combined transformed results. Lastly, image downsampling and upsampling method is introduced which has crucial...
Practical Computer Vision
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Practical Computer Vision
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Overview of this book
In this book, you will find several recently proposed methods in various domains of computer vision. You will start by setting up the proper Python environment to work on practical applications. This includes setting up libraries such as OpenCV, TensorFlow, and Keras using Anaconda. Using these libraries, you'll start to understand the concepts of image transformation and filtering. You will find a detailed explanation of feature detectors such as FAST and ORB; you'll use them to find similar-looking objects.
With an introduction to convolutional neural nets, you will learn how to build a deep neural net using Keras and how to use it to classify the Fashion-MNIST dataset. With regard to object detection, you will learn the implementation of a simple face detector as well as the workings of complex deep-learning-based object detectors such as Faster R-CNN and SSD using TensorFlow. You'll get started with semantic segmentation using FCN models and track objects with Deep SORT. Not only this, you will also use Visual SLAM techniques such as ORB-SLAM on a standard dataset.
By the end of this book, you will have a firm understanding of the different computer vision techniques and how to apply them in your applications.
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Current Title:
Practical Computer Vision
Table of Contents (12 chapters)
Preface
Free Chapter
A Fast Introduction to Computer Vision
Libraries, Development Platform, and Datasets
Image Filtering and Transformations in OpenCV
What is a Feature?
Convolutional Neural Networks
Feature-Based Object Detection
Segmentation and Tracking
3D Computer Vision
Mathematics for Computer Vision
Machine Learning for Computer Vision
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