program that compresses windows BMP image file using java

• First of all you need bmp image file format this file in your java file folder .
• Image file name is input and after the run compress.java  then automatically generate.bmp
• Then you check file size is very small compare to input size file.

1. This is java code for compresses windows BMP image file.

  import java.awt.image.BufferedImage;
  import java.io.*;
  import java.util.Iterator;
  import javax.imageio.*;
  import javax.imageio.stream.*;

  public class compress {

  public static void main(String[] args) throws IOException {

    File input = new File("input.bmp");
    BufferedImage image = ImageIO.read(input);

    File compressedImageFile = new File("generate.bmp");
    OutputStream os = new FileOutputStream(compressedImageFile);

    Iterator<ImageWriter> writers = ImageIO.getImageWritersByFormatName("jpg");
    ImageWriter writer = (ImageWriter) writers.next();

    ImageOutputStream ios = ImageIO.createImageOutputStream(os);
    writer.setOutput(ios);

    ImageWriteParam param = writer.getDefaultWriteParam();

    param.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
    param.setCompressionQuality(0.05f);  // Change the quality value you prefer
    writer.write(null, new IIOImage(image, null, null), param);

    os.close();
    ios.close();
    writer.dispose();
  }
}