jpeg image compression using java source code

Thread view:

Avinash.Masal@gmail.com - 02 Jan 2008 07:55 GMT

Urgent please.... how to compress a single jpeg image frame to
maintain quality and half of it's original storage size using java
source code.........

Reply to this Message

Andrew Thompson - 02 Jan 2008 08:26 GMT

>Urgent please....

What is your budget for this 'urgency'?
(And if '0$', why should we care?)

Signature

Andrew Thompson
http://www.physci.org/

Reply to this Message

Joshua Cranmer - 02 Jan 2008 23:25 GMT

> Urgent please.... how to compress a single jpeg image frame to
> maintain quality and half of it's original storage size using java
> source code.........

public class JavaJPEGCompressor {
public final static byte[] compressImage(byte[] image) {
byte[] ret = new byte[image.length/2];
System.arraycopy(image, 0, ret, 0, ret.length);
return ret;
}
}

Exactly half the size, but I don't think it's quite a legal image. It's
also technically the same quality...

Send me $10.00 in the mail immediately for your time ;-) .

Signature

Beware of bugs in the above code; I have only proved it correct, not
tried it. -- Donald E. Knuth

Reply to this Message

Jeff Higgins - 03 Jan 2008 00:14 GMT

Avinash wrote:

> Urgent please.... how to compress a single jpeg image frame to
> maintain quality and half of it's original storage size using java
> source code.........

Please note the earlier replies.

The Java Advanced Imaging Project

<https://jai.dev.java.net/>

advertises lossless JPEG plugins.

<http://preview.tinyurl.com/3e5dm4>

I have no experience with this API.

Reply to this Message

jpeg image compression using java source code

Free Magazines