Find Resolution of a Image Java

PROGRAM TO FIND THE RESOLUTION OF A IMAGE

package com.dn.image;

// Copy source from page http://www.java2s.com/Code/Java/2D-Graphics-GUI/Imageformatinfo.htm or download from

// https://dnhome.files.wordpress.com/2012/06/imageinfo-java.doc and rename imageinfo-java.doc to ImageInfo.java

 

import java.awt.image.BufferedImage;

import java.io.ByteArrayInputStream;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

import java.io.InputStream;

 

import javax.imageio.ImageIO;

 

import org.jimageanalyst.ImageInfo;

import org.jimageanalyst.InvalidDataException;

import org.jimageanalyst.JImageAnalyst;

import org.jimageanalyst.JImageAnalystFactory;

 

public class Demo {

/**

* @param args

*/

public static void main(String[] args) {

File file = new File("K:\\demo_image.jpg");

byte fileContent[] = new byte[(int) file.length()];

FileInputStream fin;

try {

// Read image in byte array

fin = new FileInputStream(file);

fin.read(fileContent);

// Get Image information

InputStream inp = new ByteArrayInputStream(fileContent);

JImageAnalyst analyst = JImageAnalystFactory.getDefaultInstance();

ImageInfo imageInfo = analyst.analyze(inp);

// Image Height

System.out.println("Image Height : " + imageInfo.getHeight());

// Image Height

System.out.println("Image Width : " + imageInfo.getWidth());

// Horizontal resolution

System.out.println("Horizontal Resolution : " + imageInfo.getPhysicalHeightDpi() + " dpi");

// Vertical resolution

System.out.println("Vertical Resolution : "

+ imageInfo.getPhysicalHeightDpi() + " dpi");

 

} catch (FileNotFoundException e) {

System.out.println("File not found");

} catch (InvalidDataException e) {

// Default API can not read image correct

BufferedImage img = null;

InputStream inputstream = new ByteArrayInputStream(fileContent);

try {

img = ImageIO.read(inputstream);

// Image Height

System.out.println("Image Height : " + img.getHeight());

// Image Height

System.out.println("Image Width : " + img.getWidth());

com.dn.image.ImageInfo imageInfo = new com.dn.image.ImageInfo();

imageInfo.setInput(inputstream);

imageInfo.check();

// Horizontal resolution

System.out.println("Horizontal Resolution : "

+ imageInfo.getPhysicalHeightDpi() + " dpi");

// Vertical resolution

System.out.println("Vertical Resolution : "

+ imageInfo.getPhysicalHeightDpi() + " dpi");

} catch (IOException ex) {

System.out.println("Image data is not supported");

}

} catch (IOException e) {

System.out.println("Image data is not supported");

}

}

 

}