Java bufferedimage from array

Convert Byte Array to BufferedImage in Java

In this article, we will see how to convert byte array to BufferedImage in java.

💡 Outline

To convert byte array to BufferedImage, you can use below code:

Convert byte array image to BufferedImage in java

Using ByteArrayInputStream

Here are steps to convert byte array to BufferedImage in java.

• Create ByteArrayInputStream object by passing byte[] in the constructor.
• Pass above InputStream to ImageIo.read() and get BufferedImage from it.

public static BufferedImage convertByteArrayToBufferedImage ( byte [ ] byteArr ) throws IOException

[email protected]: type = 5 ColorModel: #pixelBits = 24 numComponents = 3 color space = [email protected] transparency = 1 has alpha = false isAlphaPre = false ByteInterleavedRaster: width = 500 height = 500 #numDataElements 3 dataOff[0] = 2

Using BufferedImage’s setData

Above approach may not work in some case and may return null.

You can follow below steps to use this method as per this stackoverflow thread.

• Create a blank image
• Transform byte array to Raster and use setData to fill the image

public static BufferedImage convertByteArrayToBufferedImage ( byte [ ] byteArr ) throws IOException

Raster raster = Raster . createRaster ( bufferedImage . getSampleModel ( ) , new DataBufferByte ( byteArr , byteArr . length ) , new Point ( ) ) ;

That’s all about how to convert byte array to BufferedImage in java.

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