Alternative to ImageIO class on GAE?

Question

My Working example in normal J2EE application:

// decode the image 
    InputStream inputStream = new File("/images/test.png");
    BufferedImage barCodeBufferedImage = ImageIO.read(inputStream);
    if (barCodeBufferedImage != null) {
        LuminanceSource source = new BufferedImageLuminanceSource(barCodeBufferedImage);
        BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
        Result results = new MultiFormatReader().decode(bitmap);
        //System.out.println("Decoded barcode image :: "+results.getText());
        return results.getText();
    }

Same I want to achieve in GAE. But it blocks the ImageIO class and BufferedImage class. Can anybody tell me alternative of ImageIO class on GAE??

Answer 1

Google App Engine has a limited set of Image APIs which documentation you can find here .

The basic operations include cropping, rotation, flipping, resizing and some color manipulation.

The static makeImage method will build an Image from a byte array.