image resizing in java from byte [] to buffered Image

Question

I am trying to scale an image in byte[] form in java but my scaled variable returns null when I set scale parameters and get exception

public static byte[] resizeImage(byte[] image) throws IOException {

    ByteArrayInputStream bais = new ByteArrayInputStream(image);
    Image tmpImage = ImageIO.read(bais);
    ImageIcon imageIcon = new ImageIcon(tmpImage);
    Image scaled = imageIcon.getImage().getScaledInstance(100, 100, Image.SCALE_SMOOTH);
    BufferedImage buffered = ((ToolkitImage) scaled).getBufferedImage();
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    ImageIO.write(buffered, "jpeg", baos);
    baos.flush();
    image = baos.toByteArray();
    baos.close();
    return image;
}

sorry i forgot to write the question. please check now @Arvind Kumar Avinash — G Muktadir Rume, Apr 06 '20 at 10:29
Why are you using an ImageIcon, BufferedImage has getScaledInstance() method? It extends Image. — matt, Apr 06 '20 at 10:43

score 0 · Accepted Answer · answered Apr 06 '20 at 10:35

0

Use BufferedImage buffered = ImageIO.read(new ByteArrayInputStream(byte)); to create the BufferedImage and then check how to resize Image in java? to understand how to resize it.

answered Apr 06 '20 at 10:35

Arvind Kumar Avinash

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What you've written is in the question. – matt Apr 06 '20 at 10:44

image resizing in java from byte [] to buffered Image

1 Answers1