Alternative to ImageIO class for GAE?

Question

My working example in a regular 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(); } 

I want to achieve the same thing in GAE. But it blocks the ImageIO class and BufferedImage class. Can someone tell me an alternative to the ImageIO class on GAE ??

Answer 1

The Google App Engine has a limited set of image APIs, the documentation of which you can find here .

Key operations include cropping, rotating, flipping, resizing, and some color manipulations.

The static makeImage method will create an image from an array of bytes.