java


How do I convert byte[] to Bitmap?


Let's say I have a byte buffer and how do I get Bitmap?
If you want to manipulate the image, use ImageIO. It creates a format-agnostic image in memory:
BufferedImage img = ImageIO.read(new ByteArrayInputStream(bytes));
If you just want to store in to disk, then simply write the byte array to a file.
Note that the byte array must be already a bitmap image, you can't take any byte array and have it as bitmap.
And you get the byte array from the byte buffer by:
byte[] bytes = new byte[buf.capacity()];
buf.get(bytes, 0, bytes.length);

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