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Find dimensions of directory/GIF/JPEG

Posted on 2011-02-11
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Last Modified: 2013-11-23
Dear Experts,
I would like to produce below result for my own small program
Which will find out length , size and compression of directory JPEEG and GIF images.
Any one can help me with JAVA core programming here..

C:\Java Programt>java PicInfo pic1.jpg
name: pic1.jpg, type: JPEG-image
  length:      68676
  size:        1050 x 681
  compression: 4%

Thank you in advance:-)

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Question by:rachel88
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4 Comments
 
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by:gurvinder372
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aaver earned 1000 total points
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I think this should be helpful to start with:
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;

import javax.imageio.ImageIO;

public class ImageInfo {
    public static void main( String[] args ) throws IOException {
	for (String fileName : args) {
	    File file = new File( fileName );
	    BufferedImage image = ImageIO.read( file );
	    System.out.println( "name: " + fileName );
	    System.out.println( "type: " + (fileName.toLowerCase( ).endsWith( "jpg" ) ? "JPEG-image" : "GIF-image") );
	    System.out.println( "size: " + image.getWidth( ) + " x " + image.getHeight( ) );
	    System.out.println( "length: " + file.length( ) );
	    System.out.println( "compression: " + (100 * file.length( ) / (image.getRaster( ).getNumBands( ) * image.getWidth( ) * image.getHeight( ))) + "%" );
	}
    }
}

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by:Kevin Cross
ID: 36923063
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