Solved

compare two images

Posted on 2001-09-18
3
621 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
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
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

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
fibonacci ten numbers 4 54
jsp insert to database example 2 59
Fast way to search item into Java Array (Rhino compatible) 2 37
wild fly 8 startup error 2 37
An old method to applying the Singleton pattern in your Java code is to check if a static instance, defined in the same class that needs to be instantiated once and only once, is null and then create a new instance; otherwise, the pre-existing insta…
This was posted to the Netbeans forum a Feb, 2010 and I also sent it to Verisign. Who didn't help much in my struggles to get my application signed. ------------------------- Start The idea here is to target your cell phones with the correct…
Viewers will learn about the regular for loop in Java and how to use it. Definition: Break the for loop down into 3 parts: Syntax when using for loops: Example using a for loop:
This tutorial explains how to use the VisualVM tool for the Java platform application. This video goes into detail on the Threads, Sampler, and Profiler tabs.

735 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