Solved

Hex String to Image file

Posted on 2006-11-01
5
547 Views
Last Modified: 2011-10-03
Right now I use Oracles XDK to query the database and return an XML string.  The XML contains an element which is an image(comes from a Blob).  The data is in Hex format.  Is there a way to take a HEX string and convert it back to a JPEG?  I have tried converting the HEX to binary but its too big and will take too long.  Any help would be greatly appreciated.
0
Comment
Question by:bigboy1122
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
5 Comments
 
LVL 86

Expert Comment

by:CEHJ
ID: 17850792
byte[] imageBytes = new BigInteger(hexString).toByteArray();
// Create an image with the array
0
 
LVL 86

Expert Comment

by:CEHJ
ID: 17850804
Sorry

byte[] imageBytes = new BigInteger(hexString, 16).toByteArray();
0
 
LVL 92

Accepted Solution

by:
objects earned 500 total points
ID: 17853024
// you can load it as an image using:

Image image = ImageIO.read(new ByteArrayInputStream(new BigInteger(hexString, 16).toByteArray()));

// or save it directly to a file using:

OutputStream out = new BufferedOutputStream(new FileOutputStream("image.jpg"));
out.write(new BigInteger(hexString, 16).toByteArray());
out.close();
0
 
LVL 1

Author Comment

by:bigboy1122
ID: 17866198
Thanks guys. Just what I was looking for.
0
 
LVL 86

Expert Comment

by:CEHJ
ID: 17866815
Not sure why i received no credit for the answer accepted, since i provided most of it ...
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
ejb example issues 3 53
ejb entity bean example 2 37
jmss example java 2 33
Why is enum singleton a better approach than static factory 3 51
By the end of 1980s, object oriented programming using languages like C++, Simula69 and ObjectPascal gained momentum. It looked like programmers finally found the perfect language. C++ successfully combined the object oriented principles of Simula w…
Are you developing a Java application and want to create Excel Spreadsheets? You have come to the right place, this article will describe how you can create Excel Spreadsheets from a Java Application. For the purposes of this article, I will be u…
Viewers learn about the “while” loop and how to utilize it correctly in Java. Additionally, viewers begin exploring how to include conditional statements within a while loop and avoid an endless loop. Define While Loop: Basic Example: Explanatio…
Viewers will learn about arithmetic and Boolean expressions in Java and the logical operators used to create Boolean expressions. We will cover the symbols used for arithmetic expressions and define each logical operator and how to use them in Boole…

749 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question