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The purpose of this module is to introduce you to pixel-based image processing algorithms, similar to those that you might find in commercial image editing software such as Photoshop.

Table of contents

Preface

This module is one in a collection of modules designed to teach you about the Processing open source programming environment.

Processing is a Java-based OOP programming environment for people who want to create images, animations, and interactions.

The purpose of this module is to introduce you to pixel-based image processing algorithms, similar to those that you might find in commercial imageediting software such as Photoshop .

Click here to view the JavaScript version of the sketch discussed in this module in your HTML 5compatible browser.

Viewing tip

I recommend that you open another copy of this module in a separate browser window and use the following links to easily find and view the imagesand listings while you are reading about them.

Images

  • Image 1 . The raw image displayed in an image explorer.
  • Image 2 . The modified image displayed in an image explorer.

Listings

Preview

The program that I will explain in this module is designed to be used as a preliminary test of the student's understanding of programming using Java and Processing Development Environment (PDE) .

If this were a real test, the student would be provided an image file named Pr0130a.jpg along with a pair of stand-alone Processing applications. Those applications would produce the raw image and a modifiedversion of the raw image, each in an image explorer, as shown in Image 1 and Image 2 . (Click here to view the modified image version of the sketch in your HTML 5 compatiblebrowser.)

Deduce the algorithm

The first requirement would be for the student to examine the raw image shown in the image explorer window in Image 1 and to deduce the algorithm required to transform that image into the modified image shown inthe image explorer window in Image 2 .

Implement the algorithm

The second requirement would be for the student to implement the algorithm once it is established. Among other things, this would require that thestudent be able to:

  • Load an image from an image file.
  • Modify the pixels in the image according to the algorithm.
  • Write one sketch to display the raw image in an image explorer window before it is modified.
  • Write another sketch to display the modified image in another image explorer window after it is modified.

Questions & Answers

How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
Maciej
characteristics of micro business
Abigail
for teaching engĺish at school how nano technology help us
Anassong
How can I make nanorobot?
Lily
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
NANO
how can I make nanorobot?
Lily
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
Virgil
is Bucky paper clear?
CYNTHIA
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
NANO
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Source:  OpenStax, The processing programming environment. OpenStax CNX. Feb 26, 2013 Download for free at http://cnx.org/content/col11492/1.5
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