Solved

compare two images

Posted on 2001-09-18
3
600 Views
Last Modified: 2008-02-01
Hai Java Guys,

How to compare two images using java.If any thing different at any place ,we have to give details of that pixel.It is GIS project.If anybody know solution for this plz let me know.Thank you in asdvance.

Basha
0
Comment
Question by:shaikchanbasha
3 Comments
 

Accepted Solution

by:
toffe071900 earned 20 total points
ID: 6489989
i suppose you could use pixelgrabber on both pics to get arrays of the contents and then compare each element in the two arrays

-toffe
0
 
LVL 1

Expert Comment

by:Lab_Rat
ID: 6490780
You could simplify it to begin with....

Check the dimensions of the images are the same, if thy're not then you know before you do any more time consuming proccessing that the images arn't the same.

On the other hand if the width and the height are the same in each picture, then you can go on to set up 2 arrays containing the picture information and compare the two togeather.


e.g:

//Returns true if the images are equal
public boolean imagesAreEqual(Image i1,Image i2)
     {
     if((i1.getWidth()!=i2.getWidth)||(i1.getHeight()!=i2.getHeight)) return false;
     //Grab the two pictures here....
     //and now compare...
     for(int index=0;index<picLength;index++)
          if(pic1[index]!=pic2[index]) return false;
     return true;
     }
0
 
LVL 20

Expert Comment

by:Venabili
ID: 8916372
No comment has been added lately, so it's time to clean up this TA.
I will leave a recommendation in the Cleanup topic area that this question is:

- Points for toffe

Please leave any comments here within the next seven days.

PLEASE DO NOT ACCEPT THIS COMMENT AS AN ANSWER!

Venabili
EE Cleanup Volunteer
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Java Flight Recorder and Java Mission Control together create a complete tool chain to continuously collect low level and detailed runtime information enabling after-the-fact incident analysis. Java Flight Recorder is a profiling and event collectio…
Introduction This article is the first of three articles that explain why and how the Experts Exchange QA Team does test automation for our web site. This article explains our test automation goals. Then rationale is given for the tools we use to a…
Viewers learn about the third conditional statement “else if” and use it in an example program. Then additional information about conditional statements is provided, covering the topic thoroughly. Viewers learn about the third conditional statement …
Viewers learn about the “while” loop and how to utilize it correctly in Java. Additionally, viewers begin exploring how to include conditional statements within a while loop and avoid an endless loop. Define While Loop: Basic Example: Explanatio…

911 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

21 Experts available now in Live!

Get 1:1 Help Now