Book Image

Visual Media Processing Using MATLAB Beginner's Guide

By : George Siogkas
Book Image

Visual Media Processing Using MATLAB Beginner's Guide

By: George Siogkas

Overview of this book

Whether you want to enhance your holiday photographs or make a professional banner image for your website, you need a software tool that offers you quick and easy ways to accomplish it. All-in-one tools tend to be rare, and Matlab is one of the best available.This book is a practical guide full of step-by-step examples and exercises that will enable you to use Matlab as a powerful, complete, and versatile alternative to traditional image and video processing software.You will start off by learning the very basics of grayscale image manipulation in Matlab to master how to analyze 3-dimensional images and videos using the same tool. The methods you learn here are explained and expanded upon so that you gradually reach a more advanced level in Matlab image and video processing. You will be guided through the steps of opening, transforming, and saving images, later to be mixed with advanced masking techniques both in grayscale and in color. More advanced examples of artistic image processing are also provided, like creating panoramic photographs or HDR images. The second part of the book covers video processing techniques and guides you through the processes of creating time-lapse videos from still images, and acquiring, filtering, and saving videos in Matlab. You will learn how to use many useful functions and tools that transform Matlab from a scientific software to a powerful and complete solution for your everyday image and video processing needs.
Table of Contents (18 chapters)
Visual Media Processing Using MATLAB Beginner's Guide
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Loading videos in MATLAB


Before we start discussing how to create our own videos, it is important to first see how MATLAB handles videos. In fact, video processing is one of the areas in which MATLAB has been evolving a lot over these past years. As opposed to image processing, where imread was introduced in early versions of the software and could be used for loading most popular image formats, the respective function for video loading has been changed a lot. The main reason behind the changes was the differences in video compression formats, which did not allow for a single efficient function that could handle opening every possible one. In this section, we will present the different functions that can be used in MATLAB for video importing. This way, readers with previous versions of MATLAB will be able to use the function they feel most comfortable with.

Loading videos with aviread

The first function used for reading videos in MATLAB was aviread. This function still exists in Version 2012b...