Convert ImageProxy to Jpeg or Png

Question

I just started with androidX camera, I'm using it's functionality imagecatpure.takePicture() , and I get ImageProxy as an object, so now my question is how can i convert this to jpeg/png/jpg so I can upload the image through an api?

is there another more efficient way to achieve this?

Answer 1

You can convert the ImageProxy to Bitmap and then Save it as JPEG/JPG/PNG from that Bitmap.

Image Proxy to Bitmap Convert:

private Bitmap imageProxyToBitmap(ImageProxy image) {
    ByteBuffer buffer = image.getPlanes()[0].getBuffer();
    byte[] bytes = new byte[buffer.remaining()];
    buffer.get(bytes);
    return BitmapFactory.decodeByteArray(bytes,0,bytes.length,null);
}

Bitmap to Image (Modify as you need)

Bitmap bmp = null;
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bmp.compress(Bitmap.CompressFormat.JPEG, 100, stream);
byte[] byteArray = stream.toByteArray();

FileInputStream fileInputStream = null;

File file = new File("yourfile");

byteArray = new byte[(int) file.length()];

try {
    //convert file into array of bytes
    fileInputStream = new FileInputStream(file);
    fileInputStream.read(bFile);
    fileInputStream.close();

    //convert array of bytes into file
    FileOutputStream fileOuputStream =
            new FileOutputStream("C:\\testing2.txt");
    fileOuputStream.write(bFile);
    fileOuputStream.close();

    System.out.println("Done");
} catch (Exception e) {
    e.printStackTrace();
}

Credit: ImageProxy to Bitmap and bitmap to a jpeg

If you want to try a different approach then you can use the methods below. This method uses ImageCapture.OutputFileOptions as output.

1. Android CameraX Java Example
2. AndroidX Camera example