Converting an byte[] to an image

[Zac Styris]

Hi everyyone

I want to convet an byte[] which i've received from a mobile phone in to a image (jpg/png) after i receive it on the J2SE server end. Please some one help me with the method which i can just convert a byte[] in to a image n store it on the hard drive of the computer.

Thanks

[Joe Ess]

javax.imageio.ImageIO can do what you need.

[Jeff Albertson]

What is the format of the data in the byte array? if it is already in JFIF (that's jpeg) or PNG format, just use java.io.* to write the data to a file. In other words, is there really a *need* to convert the data to an image?
[ January 27, 2006: Message edited by: Jeff Albertson ]

[Rashid Mayes]

You can use JAI.

    
 
byte[] data = ...;
RenderedOp image = JAI.create("stream", new ByteArraySeekableStream(data));
 

After you have the RenderedOp you can manipulate it how you want. For exampple,

    
 
Interpolation interp = Interpolation.getInstance(Interpolation.INTERP_BICUBIC);
            
ParameterBlock params = new ParameterBlock();
params.addSource(image);
params.add(new Float(scale));
params.add(new Float(scale));
params.add(0.0F);
params.add(0.0F);
params.add(interp);
 
RenderedOp scaledImage = JAI.create("scale", params);
 
JPEGEncodeParam param = new JPEGEncodeParam();
param.setQuality(1.2F);
RenderedOp op = JAI.create("filestore", scaledImage, "/tmp/my.jpg", "JPEG", param);
 

[Zac Styris]

Thanks guys, Java.io just works fine n suits for wut i wanna do, thanks for helping again.

Rock on