how to compare two images in java?in terms of height and width

Question

i had been working on my project which encompasses the technique for comparing images. I want to compare two images in java in terms of height and width, i can't compare it if any one can help it please do..

http://stackoverflow.com/questions/672916/how-to-get-image-height-and-width-using-java Might help — seenukarthi, Jan 20 '16 at 16:26

Pritam Banerjee · Accepted Answer · 2016-01-21T18:58:23.977

0

Here is a head start. You can use something like this and that should get you going.

Image image;

public static void listFilesForFolder(File folder) {
    for (final File fileEntry : folder.listFiles()) {

        Image image;

        try {


            image = ImageIO.read(new File("C://Users//workspace//ImageProcessing//images//" + fileEntry.getName()));

            BufferedImage buffered = (BufferedImage) image;

            int imageHeight = image.getHeight(null);
            int imageWidth = image.getWidth(null);
            yourImageClass.setHeight(imageHeight);
            yourImageClass.setWidth(imageWidth);
            arrayListOfImageClasses.add(yourImageClass);

        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        System.out.println(fileEntry.getName());

    }
}

These are the jars you can use :

import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.RenderingHints;
import java.awt.Transparency;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;

Hope this gets you going.

edited Jan 21 '16 at 18:58

answered Jan 20 '16 at 16:50

Pritam Banerjee

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actually i have to capture frames from a specified video and compare that frames with each other to find the portion wise difference between them .... will the above code be usefull. for that??? – Shubham Jan 21 '16 at 18:08
Yes, it will be. You need to get the frames and then compare the size of the frames. – Pritam Banerjee Jan 21 '16 at 18:25
how to compare them ?? how to pass the path of two images simultaneously??? – Shubham Jan 21 '16 at 18:37
It is easy. Write a function that reads the images. Then create a class Image with two attributes - height and width. When you read through the files you keep adding the Images to an ArrayList. Then do comparisons in whatever way you want. I have edited my code to give you some hints. – Pritam Banerjee Jan 21 '16 at 18:54
thanks for ur help buddy will check it tomorrow and concern you back. – Shubham Jan 21 '16 at 19:11
hey its not working if u can help me out please .... – Shubham Jan 27 '16 at 16:03
Which part is not working ? – Pritam Banerjee Jan 27 '16 at 16:05
it says method not found..... while executing setwidth and setheight method. – Shubham Jan 28 '16 at 14:46
Did you import the packages I mentioned ? – Pritam Banerjee Jan 28 '16 at 14:54
yeys i did.... then also it didn't worked – Shubham Jan 29 '16 at 16:58
What error did it throw ? And what Java version are you using ? – Pritam Banerjee Jan 29 '16 at 17:55
i am using jdk 1.8. It states as "cannot find symbol " on line where we declared the setheight and setwidth method.... Also says "Illegal start of expression" at method declaration of "public static void listFilesForFolder(File folder) ". – Shubham Jan 30 '16 at 05:35
i am trying naivesimilarity program from java cookbook bt couldn't get the dissimilar image .... can anyone help me on that.??? – Shubham Feb 03 '16 at 16:23

how to compare two images in java?in terms of height and width

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