Generating thumbnail on unix

[veda patil]

How to generate thumbnail from an image.
We have to use JDK 1.3.1 version only.

[Balasubramani Dharmalingam]

    
 public static BufferedImage getScaleImage(BufferedImage source, int width, int height) {
                //
                BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_USHORT_565_RGB );
                image.createGraphics().drawImage(source, 0, 0, width, height, null);
                return image;
        }
 

 
 public static void scaleImage( File inFile , File outFile , int dimension ) throws IOException {
 
                        BufferedImage image = ImageIO.read( inFile );
                        if (image == null) {
                                throw new IOException( "Unable to generate Thumbnail image" ) ;
                        }
 
                        image = getScaleImage( image , dimension , dimension );
                        String name = outFile.getName();
                        String format = name.substring( name.lastIndexOf( '.' ) + 1 ).toLowerCase();
                        ImageIO.write( image , format , outFile ) ;
                
        }
 

Usage: scaleImage( new File( "ImageFilePath") , new File( "thumbnailPath" ) , 100 )

We used this code for generating thumbnail image using JDK 1.4.

[Joe Ess]

Image.getScaledInstance(int width, int height, int hints)