array of bytes to an image

[steve]

I have an array of bytes that I need to save out as an image. I have
tried this

where byte[] type10image is the array of bytes representing the image

Image t10 = null;
t10 = Toolkit.getDefaultToolkit().createImage(type10image);
File output = new File("saved.jpeg");
ImageIO.write(t10, "jpeg", output);

and on the last line on the .write I am getting

cannot find symbol
symbol: method write(java.awt.Image, java.lang.String, java.io.File)
location: class.javax.imageio.ImageIO

and yes I have
import javax.imageio.*;

import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;

Help? Not sure what is going on.

Thanks

 

[steve]

I have an array of bytes that I need to save out as an image. I have
tried this

where byte[] type10image is the array of bytes representing the image

        Image t10 = null;
        t10 = Toolkit.getDefaultToolkit().createImage(type10image);
        File output = new File("saved.jpeg");
        ImageIO.write(t10, "jpeg", output);

and on the last line on the .write I am getting

cannot find symbol
symbol: method write(java.awt.Image, java.lang.String, java.io.File)
location: class.javax.imageio.ImageIO

and yes I have
import javax.imageio.*;

import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;

Help? Not sure what is going on.

Thanks

Also tried this

try {
InputStream in = new ByteArrayInputStream(type10image);
BufferedImage bi = javax.imageio.ImageIO.read(in);
File outputfile = new File("saved.jpg");
ImageIO.write(bi, "jpg", outputfile);
}
catch (IOException e){}

and with this I am getting Exception in thread "main"
java.lang.IllegalArgumentException: im == null! occuring on the
ImageIO.write line

 

[Mark Space]

I have an array of bytes that I need to save out as an image. I have
tried this

where byte[] type10image is the array of bytes representing the image

Image t10 = null;
t10 = Toolkit.getDefaultToolkit().createImage(type10image);
File output = new File("saved.jpeg");
ImageIO.write(t10, "jpeg", output);

ImageIO.write takes a "RenderImage" for the first argument, not Image.
So it can't find a method called "write" that takes an Image, which is
why you are getting the message.

 

[steve]

I have an array of bytes that I need to save out as an image. I have
tried this

where byte[] type10image is the array of bytes representing the image

        Image t10 = null;
        t10 = Toolkit.getDefaultToolkit().createImage(type10image);
        File output = new File("saved.jpeg");
        ImageIO.write(t10, "jpeg", output);

ImageIO.write takes a "RenderImage" for the first argument, not Image.
So it can't find a method called "write" that takes an Image, which is
why you are getting the message.

Problem solved. Got it working!

 

[blue indigo]

Also tried this

try {
InputStream in = new ByteArrayInputStream(type10image);
BufferedImage bi = javax.imageio.ImageIO.read(in);
File outputfile = new File("saved.jpg");
ImageIO.write(bi, "jpg", outputfile);
}
catch (IOException e){}

and with this I am getting Exception in thread "main"
java.lang.IllegalArgumentException: im == null! occuring on the
ImageIO.write line

ImageIO.read() is documented as sometimes returning null. So bi needs to
be checked.

ImageIO.read() may return null if the file cannot be decoded -- it's
broken or it's not in a supported format. Adding plugin classes to the
class path can expand the set of supported formats without the caller of
ImageIO.read() having to add new code though.

 

[rsrinivas]

On Jan 27, 10:23*am, Mark Space <[email protected]> wrote:
> steve wrote:
> > I have an array of bytes that I need to save out as an image. I have
> > tried this
>
> > where byte[] type10image is the array of bytes representing the image
>
> > * * * * Image t10 = null;
> > * * * * t10 = Toolkit.getDefaultToolkit().createImage(type10image);
> > * * * * File output = new File("saved.jpeg");
> > * * * * ImageIO.write(t10, "jpeg", output);
>
> ImageIO.write takes a "RenderImage" for the first argument, not Image.
> So it can't find a method called "write" that takes an Image, which is
> why you are getting the message.

Problem solved. Got it working!

how did you got it working?

here is my code, which has the same error java.lang.IllegalArgumentException: im == null!


String base64String=args[0];(String containing base64 data)


byte[] bytearray = Base64.decode(base64String);
BufferedImage imag=ImageIO.read(new ByteArrayInputStream(bytearray));
ImageIO.write(imag, "jpg", new File(dirName,"snap.jpg"));


please help me get it work