[java] bmp->jpg

koly

/**

 * JpegConverter

 *

 * This class loads all BMP images in a given directory and saves each as a JPEG

 * file in the same directory.  This code is specific to BMP, but it could be

 * easily extended to read images of any type that ImageIO handles.

 */

public class JpegConverter {

    

    public static void main(String args[]) {

        // Default directory is current directory, overridden by -dir parameter

        String imagesDir = ".";

        for (int i = 0; i < args.length; ++i) {

            if (args[i].equals("-dir") && i + 1) < args.length {

                imagesDir = args[++i];

            }

        }

        // directory that holds original images

        File cwd = new File(imagesDir);

        File files[] = cwd.listFiles;

        for (int i = 0; i < files.length; ++i) {

            String fileName = files[i].getName;

            // converstion to lower case just for ease of replacing the

            // filename extension

            String fileNameLC = fileName.toLowerCase;

            if (fileName.endsWith("bmp" {

                try {

                    // Replace original "bmp" filename extension with "jpg"

                    int extensionIndex = fileNameLC.lastIndexOf("bmp");

                    String fileNameBase = fileName.substring(0, extensionIndex);

                    BufferedImage img = ImageIO.read(files[i]);

                    // create new JPEG file

                    File convertedImgFile = 

                            new File(imagesDir + File.separator + 

                                     fileNameBase + "jpg");

                    // store original file out in JPEG format

                    ImageIO.write(img, "jpeg", convertedImgFile);

                } catch (Exception e) {

                    System.out.println("Problem with " + files[i]);

                }

            }

        }

    }

}

  

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sasha79

anton7805

koly