Tika Image Extraction

Tika ImageParser is a class that is used to extract content and metadata from a image file. This class is stored into the org.apache.tika.parser.image package. It contains the constructor and methods, that are tabled here, see below.

Tika ImageParser Constructor

Constructor	Description
public ImageParser()	It is used to create instance of the class.

Tika ImageParser Methods

Following are the methods of ImageParser Class.

Method	Description
public Set<MediaType> getSupportedTypes(ParseContext context)	Returns the set of media types supported by this parser when used with the given parse context.
public void parse(InputStream stream, ContentHandler handler, Metadata metadata, ParseContext context) throws IOException, SAXException, TikaException	Parses a document stream into a sequence of XHTML SAX events. Fills in related document metadata in the given metadata object.

Tika Image Parser Example

In this example, we are extracting content and metadat of an image file. See the example.

package tikaexample;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import org.apache.tika.exception.TikaException;
import org.apache.tika.metadata.Metadata;
import org.apache.tika.parser.ParseContext;
import org.apache.tika.parser.jpeg.JpegParser;
import org.apache.tika.sax.BodyContentHandler;
import org.xml.sax.SAXException;
public class ImageExample {
   public static void main(final String[] args) throws IOException,SAXException, TikaException {
      BodyContentHandler handler = new BodyContentHandler();
      Metadata metadata = new Metadata();
      FileInputStream inputstream = new FileInputStream(new File("javatpoint.jpg"));
      ParseContext pcontext = new ParseContext();
      JpegParser  JpegParser = new JpegParser();
      JpegParser.parse(inputstream, handler, metadata,pcontext);
      System.out.println("Document Content :" + handler.toString());
      System.out.println("Document Metadata :");
      String[] metadataNames = metadata.names();
      for(String name : metadataNames) { 		        
         System.out.println(name + ": " + metadata.get(name));
      }
   }
}

Output:

Document Content :
Document Metadata :
Exif Versi2on: 2.30
Brightness: 0
Compression Type: Baseline
Image Description: 
Number of Components: 3
Component 2: Cb component: Quantization table 1, Sampling factors 1 horiz/1 vert
Focal Length: 4.1 mm
Component 1: Y component: Quantization table 0, Sampling factors 2 horiz/1 vert
Unknown tag (0x9410): [3656 values]
tiff:ResolutionUnit: Inch
Date/Time Original: 2015:06:11 20:53:00
tiff:Make: SONY
Unknown tag (0x201f): 0 0 0 0
Unknown tag (0x200d): 1
Flash Level: Normal
Component 3: Cr component: Quantization table 1, Sampling factors 1 horiz/1 vert
Flash Exposure Compensation: 0 EV
Unknown tag (0xb046): 0
F-Number: f/3.5
Unknown tag (0x2015): 65535
Focus Mode: Manual
Sensitivity Type: Recommended Exposure Index
tiff:BitsPerSample: 8
Unknown tag (0x0002): 0x00000001
Unknown tag (0x2027): 4896 3672 4375 1897

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