Essay on Image Processing

5875 Words Jan 26th, 2013 24 Pages
Elementary Introduction to
Image Processing Based Robots
2009

Acknowledgement

P age |2

• My Senior Sourabh Sankule
• My Friends Mayank and Ashish
• Robotics Club, IIT Kanpur
• Electronics Club, IIT Kanpur
• Centre for Mechatronics, IIT Kanpur

Ankur Agrawal

IIT Kanpur

P age |3

Contents
Introduction ................................................................................................................ 4
MATLAB ....................................................................................................................... 4
What does MATLAB stand for? ......................................................................................................4
Getting acquainted with MATLAB
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Image processing is quite a vast field to deal with. We can identify colors, intensity, edges, texture or pattern in an image. In this tutorial, we would be restricting ourselves to detecting colours (using
RGB values) only.

Getting acquainted with MATLAB environment
For those who have just finished installing MATLAB on their system and can’t figure out from where to start, no need to worry! This tutorial will first make you well acquainted with its very basics and then move further.
So, a typical MATLAB 2009 window looks like:

Ankur Agrawal

IIT Kanpur

P age |5

There are 4 main windows:
Command window: This is the main window where you write the commands, as well as see the outputs. In other words, here is your interaction with the software.
Command History: As the name suggests, it shows the list of the commands recently used in chronological order. Hence, you can double click on a command to execute it again.
Current directory: It is the default directory (folder) for saving your files. All the files which you make (like m-files, as discussed later) are saved here and can be accessed from here directly. The location of the current directory is shown in the toolbar at the top. You can change it by changing the address here.

Workspace: It displays the list of the variables defined by you in the current

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