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

Creating composite images


If you got bored with all the science, now it's time for you to dive into the more fun part of image mixing. A very popular technique that is handled very efficiently by popular image processing suites is compositing two or more images, to make selected elements in them appear in the same scene simultaneously. When performed successfully, this technique can lead to beautiful artistic results, or even hilarious or odd scenes. But before getting to work on compositing, we should first get to know the tools we will be using in MATLAB.

Using imfuse to create a composite image

The most useful function you will use when it comes to compositing tasks is imfuse. This function takes two images as input and returns a fused version of these images as output. The function can also accept extra optional inputs, such as spatial referencing information for the two input images, fusion method selection, intensity scaling option, and output color channel for each of the two images...