Java Utililty Methods BufferedImage to Byte Array

List of utility methods to do BufferedImage to Byte Array

  1. HOME
  2. Java
  3. B
  4. BufferedImage to Byte Array

Description

The list of methods to do BufferedImage to Byte Array are organized into topic(s).

Method

byte[]image2Bytes(BufferedImage image)
image Bytes 
return ((DataBufferByte) image.getRaster().getDataBuffer()).getData();
byte[]image2Bytes(File f)
image Bytes 
BufferedImage bi = ImageIO.read(f);
int imageType = bi.getType();
int width = bi.getWidth();
int height = bi.getHeight();
BufferedImage grayImage = new BufferedImage(width, height, BufferedImage.TYPE_BYTE_GRAY);
new ColorConvertOp(ColorSpace.getInstance(ColorSpace.CS_GRAY), null).filter(bi, grayImage);
return (byte[]) grayImage.getData().getDataElements(0, 0, width, height, null);
byte[]imageToByte(BufferedImage bi, String format)
image To Byte 
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ImageIO.write(bi, format, baos);
return baos.toByteArray();
byte[]imageToByte(BufferedImage image)
image to byte 
ByteArrayOutputStream out = new ByteArrayOutputStream();
ImageIO.write(image, "png", out);
try {
    return out.toByteArray();
} finally {
    if (out != null) {
        out.close();
byte[]imageToByte(BufferedImage img)
Conversion d'image vers Byte 
ByteArrayOutputStream baos = new ByteArrayOutputStream();
byte[] bytes = null;
try {
    ImageIO.write(img, "jpg", baos);
    baos.flush();
    bytes = baos.toByteArray();
} catch (IOException e) {
    e.printStackTrace();
...
byte[]imageToByteArray(BufferedImage o)
Ein byte-Array (BLOB) aus einem Image erzeugen 
if (o != null) {
    BufferedImage image = (BufferedImage) o;
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    try {
        boolean converted = ImageIO.write(image, "jpeg", baos);
        if (!converted) {
        byte[] b = baos.toByteArray();
...
byte[]imageToBytes(BufferedImage image, String encoding)
Converts an image to byte buffer representing PNG (bytes as they would exist on disk) 
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ImageIO.write(image, encoding, baos);
return baos.toByteArray();
byte[]imageToBytes(BufferedImage image, String imageFormat)
image To Bytes 
ByteArrayOutputStream stream = new ByteArrayOutputStream();
ImageWriter writer = ImageIO.getImageWritersByFormatName(imageFormat).next();
ImageWriteParam param = getParams(writer);
writer.setOutput(new MemoryCacheImageOutputStream(stream));
writer.write(null, new IIOImage(image, null, null), param);
stream.flush();
byte[] imageInByte = stream.toByteArray();
stream.close();
...
byte[]imageToBytes(BufferedImage img, String formatName)
Returns the image into an array of bytes. 
byte[] imgBytes = null;
ByteArrayOutputStream stream = null;
try {
    stream = new ByteArrayOutputStream();
    ImageIO.write(img, formatName, stream);
    stream.flush();
    imgBytes = stream.toByteArray();
} catch (IOException e) {
...
byte[]toArrayByte(BufferedImage image)
to Array Byte 
byte[] bytes = new byte[] {};
try {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    ImageIO.write(image, "png", baos);
    baos.flush();
    bytes = baos.toByteArray();
    baos.close();
} catch (IOException e) {
...