There seem to be some bugs with the implementation referred to by Thilo, and also copy and pasted on other sites verbatim: ByteBufferBackedInputStream.read() returns a sign extended int representation of the byte it reads, which is wrong (value should be in range [-1..255]) ByteBufferBackedInputStream.read(byte[], int, int) does not return -1 when there are no bytes … Read more
Ron Hitches in his excellent book Java NIO seems to offer what I thought could be a good answer to your question: Operating systems perform I/O operations on memory areas. These memory areas, as far as the operating system is concerned, are contiguous sequences of bytes. It’s no surprise then that only byte buffers are … Read more
Try something like this: Bitmap bmp = intent.getExtras().get(“data”); ByteArrayOutputStream stream = new ByteArrayOutputStream(); bmp.compress(Bitmap.CompressFormat.PNG, 100, stream); byte[] byteArray = stream.toByteArray(); bmp.recycle();
You are writing to your memory stream twice, also you are not disposing the stream after use. You are also asking the image decoder to apply embedded color correction. Try this instead: using (var ms = new MemoryStream(byteArrayIn)) { return Image.FromStream(ms); }