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Learn to crop, flip, and combine pictures.

Revised: Sun Apr 03 11:56:24 CDT 2016

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Table of contents

Preface

This module is one of a series of modules designed to teach you about Object-Oriented Programming (OOP) using Java.

The program described in this module requires the use of the Guzdial-Ericson multimedia class library. You will find download, installation, and usageinstructions for the library at Java OOP: The Guzdial-Ericson Multimedia Class Library .

Viewing tip

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

Figures

  • Figure 1 . Raw butterfly image.
  • Figure 2 . Beach scene with student's name added.
  • Figure 3 . Composite image.
  • Figure 4 . Required text output.
  • Figure 5 . Cropped and flipped version of the butterfly image.
  • Figure 6 . Partially complete version of the output picture.

Listings

  • Listing 1 . The driver class named Prob02.
  • Listing 2 . Beginning of the Prob02Runner class.
  • Listing 3 . Beginning of the run method.
  • Listing 4 . Beginning of the cropAndFlip method.
  • Listing 5 . Process using nested loops.
  • Listing 6 . Call the copyPictureWithCrop method from the run method..
  • Listing 7 . Beginning of the method named copyPictureWithCrop.
  • Listing 8 . Process using nested loops.
  • Listing 9 . The remainder of the run method.
  • Listing 10 . Complete program listing.

Preview

In this module, you will learn how to:

  • Work directly with individual pixels and keep track of coordinate values.
  • Copy a portion of one picture into a specific location in another picture.
  • Crop and flip a picture.

Program specifications

Write a program named Prob02 that uses the class definition shown in Listing 1 and Ericson's media library along with the image files named Prob02a.jpg and Prob02b.jpg to produce the three graphic output images shown in Figure 1 , Figure 2 , and Figure 3 .

Figure 1 - Raw butterfly image.

This is an image of a butterfly that will be superimposed on a beach scene to form a composite image.

Figure 2 - Beach scene with student's name added.

This is an image of a beach scene that will be used to form a composite image.

Figure 3 - Composite image.

This is the composite image with the cropped and flipped images of the butterfly superimposed on the beach scene on each side of center.

May define new classes

You may define new classes as necessary to cause your program to behave as required, but you may not modify the class definition for the class named Prob02 given in Listing 1 .

The facing butterfly images

The two facing images of the butterflies in the final output picture are separated by two pixels and those two images as a pair are centered in thepicture of the beach.

Required text output

In addition to the three output images mentioned above, your program must display your name and the other three lines of text shown in Figure 4 on the command-line screen:

Figure 4 . Required text output.
Display your name here. Picture, filename Prob02a.jpg height 118 width 100Picture, filename Prob02b.jpg height 240 width 320 Picture, filename None height 101 width 77

Questions & Answers

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
Do somebody tell me a best nano engineering book for beginners?
s. Reply
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
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Harper
Do you know which machine is used to that process?
s.
how to fabricate graphene ink ?
SUYASH Reply
for screen printed electrodes ?
SUYASH
What is lattice structure?
s. Reply
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
tahir
On having this app for quite a bit time, Haven't realised there's a chat room in it.
Cied
what is biological synthesis of nanoparticles
Sanket Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
China
Cied
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
Porter
many many of nanotubes
Porter
what is the k.e before it land
Yasmin
what is the function of carbon nanotubes?
Cesar
I'm interested in nanotube
Uday
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
AMJAD
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
AMJAD
what is system testing
AMJAD
what is the application of nanotechnology?
Stotaw
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
Azam
anybody can imagine what will be happen after 100 years from now in nano tech world
Prasenjit
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
Azam
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
Prasenjit
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
Damian
silver nanoparticles could handle the job?
Damian
not now but maybe in future only AgNP maybe any other nanomaterials
Azam
Hello
Uday
I'm interested in Nanotube
Uday
this technology will not going on for the long time , so I'm thinking about femtotechnology 10^-15
Prasenjit
can nanotechnology change the direction of the face of the world
Prasenjit Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Object-oriented programming (oop) with java. OpenStax CNX. Jun 29, 2016 Download for free at https://legacy.cnx.org/content/col11441/1.201
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