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

Summary


This chapter gave an introduction to videos and basic video processing tools contained in MATLAB. A brief explanation of the various properties of the videos that affect their quality has been provided in the first half of the chapter, followed by a presentation of the basic functions used to load videos in MATLAB. Then, ways to playback videos and video sequences using the command line were demonstrated and the process of video creation from static images was explained. In the rest of the chapter, two useful tools for inspecting and playing back videos were discussed and then the creation of time-lapse videos in both .avi and .gif formats was shown in detail. More specifically, this chapter covered:

  • An introduction to digital video basics

  • A presentation of interlaced and progressive videos

  • A discussion on frame rates and their importance

  • Some thoughts and examples on choosing a frame rate

  • Loading videos in MATLAB using aviread

  • Loading videos in MATLAB using mmreader

  • Loading videos in MATLAB...