Get the image file(s) some informations,Including the Make,Model,Date/Time,etc

This is a blog about how to get the image file(s) some informations.Including the Make,Model,Date/Tiime,etc.

while,how can do it? I should use a tool which name is :Exif,writed by Java,and now its version is 2.6.4.

and you can get more from the here. or osChina

How does it work?

while,I hava a demo and I will show the complete code to you.

 /**
  *
  */
 package com.b510.test;

 import java.io.File;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;

 import com.drew.imaging.jpeg.JpegMetadataReader;
 import com.drew.imaging.jpeg.JpegProcessingException;
 import com.drew.metadata.Directory;
 import com.drew.metadata.Metadata;
 import com.drew.metadata.Tag;
 import com.drew.metadata.exif.ExifIFD0Directory;
 /**
  * only handle the "jpeg" format image file(s)<br>
  * <a href="https://drewnoakes.com/code/exif/">Get more about the Exif>></a>
  * @author Hongten
  * @date 2013-12-20
  */
 public class ExifTester {

     //separating character
     public static final String LINE = "-";
     public static final String RIGHT_PARENTHESES = "]";

     public static void main(String[] args) throws Exception {
         //if you want to run this code.you should be rewrite the following array of String.
         //and be sure the correct path of the image file
         String[] pathNames = {
                 "C:/2013-02-08_12-24-54_100.jpg",//motorola ME865
                 "C:/20022013011.jpg",//nokia 6700s
                 "C:/IMG_0018.JPG",//download from web site
                 "C:/IMG_0697.JPG", //ipad4
                 "C:/P1080402.JPG"//Panasonic DMC-LX5
                 };
         List<File> files = new ArrayList<File>();
         for (String pathname : pathNames) {
             File file = new File(pathname);
             files.add(file);
         }
         List<Map<String, String>> imagesInfo = getImageInfoOfExif(files);
         printImagesInfo(imagesInfo);
         //Get the image file informations
         File file = new File("C:/IMG_0697.JPG");
         Map<String, String> map = getImageInfoOfExif(file);
         System.out.println("##### the image file informations");
         HandleMap(map);
      }

     /**
      * print the abstracts of image file
      * @param imagesInfo
      */
     private static void printImagesInfo(List<Map<String, String>> imagesInfo) {
         if(!imagesInfo.isEmpty()){
             for(Map<String, String> map: imagesInfo){
                 HandleMap(map);
                 System.out.println("======================================");
             }
         }
     }

     /**
      * @param map
      */
     private static void HandleMap(Map<String, String> map) {
         Iterator<String> iterator = map.keySet().iterator();
         while (iterator.hasNext()) {
             String name = iterator.next();
             String value = map.get(name);
             printInfo(name, value);
         }
     }

     /**
      * @param name
      * @param value
      */
     private static void printInfo(String name, String value) {
         System.out.println(name + " : " + value);
     }

     /**
      * get the abstracts of the image file
      * @param jpegFile
      * @return
      * @throws JpegProcessingException
      * @throws IOException
      */
     @SuppressWarnings("unchecked")
     private static Map<String, String> getImageInfoOfExif(File jpegFile) throws JpegProcessingException, IOException {
         Metadata metadata = JpegMetadataReader.readMetadata(jpegFile);
         Directory exifDirectory = metadata.getDirectory(ExifIFD0Directory.class);
         Collection tags = exifDirectory.getTags();
         Iterator iterator = tags.iterator();
         Map<String, String> abstractsMap = new HashMap<String, String>();
         while (iterator.hasNext()) {
             Tag tag = (Tag) iterator.next();
             String[] tagArrays = tag.toString().split(LINE);
             String[] abstracts = tagArrays[0].trim().split(RIGHT_PARENTHESES);
             abstractsMap.put(abstracts[1].trim(), tagArrays[1].trim());
         }
         return abstractsMap;
     }

     /**
      * handle more than one image files
      * @param files
      * @return
      * @throws JpegProcessingException
      * @throws IOException
      */
     private static List<Map<String, String>> getImageInfoOfExif(List<File> files) throws JpegProcessingException, IOException{
         if(files == null)return null;
         List<Map<String, String>> list = new ArrayList<Map<String,String>>();
         if(files.size() > 0){
             for(File file: files){
                 Map<String, String> map = getImageInfoOfExif(file);
                 list.add(map);
             }
         }
         return list;
     }
 }

and the output as following:

Date/Time : 2013:02:08 12:24:53
Model : ME865
X Resolution : 72 dots per inch
YCbCr Positioning : Center of pixel array
Resolution Unit : Inch
Y Resolution : 72 dots per inch
Make : Motorola
======================================
Orientation : Top, left side (Horizontal / normal)
Model : 6700s
X Resolution : 300 dots per inch
YCbCr Positioning : Center of pixel array
Resolution Unit : Inch
Y Resolution : 300 dots per inch
Make : Nokia
======================================
Orientation : Top, left side (Horizontal / normal)
X Resolution : 72 dots per inch
YCbCr Positioning : Center of pixel array
Resolution Unit : Inch
Y Resolution : 72 dots per inch
======================================
Software : 6.1.3
Date/Time : 2013:06:27 23:31:19
Orientation : Right side, top (Rotate 90 CW)
Model : iPad
X Resolution : 72 dots per inch
YCbCr Positioning : Center of pixel array
Resolution Unit : Inch
Y Resolution : 72 dots per inch
Make : Apple
======================================
Software : Ver.1.0
Unknown tag (0xc4a5) : [208 bytes]
Model : DMC
Orientation : Top, left side (Horizontal / normal)
YCbCr Positioning : Datum point
Unknown tag (0xc6d3) : [128 bytes]
Date/Time : 2013:01:04 00:01:06
X Resolution : 180 dots per inch
Unknown tag (0xc6d2) : [64 bytes]
Resolution Unit : Inch
Artist :
Y Resolution : 180 dots per inch
Make : Panasonic
======================================
##### the image file informations
Software : 6.1.3
Date/Time : 2013:06:27 23:31:19
Orientation : Right side, top (Rotate 90 CW)
Model : iPad
X Resolution : 72 dots per inch
YCbCr Positioning : Center of pixel array
Resolution Unit : Inch
Y Resolution : 72 dots per inch
Make : Apple

it work and the output is so cool.

then, you should have a try!