Image Byte Array - Hex?

Hi all,
I'm trying to read in an image and get an int / hex array out of it. Basically, I want to get an array that would look like what you see if you open an image in a hex editor. I have no problems getting a byte array using..
ByteArrayOutputStream stream = new ByteArrayOutputStream();
ImageIO.write( bufferedImage, "jpg", stream );
bytes = stream.toByteArray();
But, it's weird, it's not really what I want. The result is not the same as what I see if I drop the same image into a hex editor and look at the bytes. Not sure if I need to convert the bytes to hex or what. Any help would be much appreciated.

hmm.. can you explain a bit?.. let's say I do...
BufferedImage srcImage = ImageIO.read( new File( pathIn ));
ByteArrayOutputStream streamIn = new ByteArrayOutputStream();
ImageIO.write( srcImage , "jpg", streamIn );
byte[] bytes = stream.toByteArray();
ByteArrayInputStream streamOut = new ByteArrayInputStream( bytes );
BufferedImage writeImage = ImageIO.read( streamOut );
ImageIO.write( writeImage, "jpg", new File( pathOut ));Looks a little odd out of context, I know. But, basically, the resulting image is different than the original image. I assume, maybe, there is some sort of compression going on. But i don't really know. Should I be decoding / encoding in specific formats to get the resulting image to be /exactly/ the same as the source?
thanks

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Image Byte Array

How do we get byte array of an image(immutable/mutable) object.I want to save it in RMS tht is why i need to get the image in byte array form.
I want to send mutable and immutable images through HTTP.Is it possible to do so ??Please Help.
Thnks in advance.

Why don't you just try in stead of asking questions. I'm not here to hold you hand on every step. The api docs should provide you with more than enough information to help you on your way. You'll just need to reed that information very well.

How to render an image (byte array) in a JSP

I don't know how to solve this:
I have a bean 'Details' with a property 'photo'
This bean is read in a servlet and put into session scope like this:
PhotoDetails Details = getPhotoDetail(some_id);
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session.setAttribute("photo", Details);
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<bean:write scope="session" name="photo" property="photo_description" />
Till now, it works fine,
but now I want to display the 'photo' property. This fails ....
I try to do this:
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kind regards,
Harryvanrijn

Karthik:
It should not be difficult to debug what is exactly the cause of your problem.
Firstly, use your servlet to display an existing .jpeg or .jpg file that you know it is good.
If it is ok, then the problem lies in getting the image from the blob. To confirm it, you can try saving the image from the blob into a .jpeg file and viewing it through any graphic viewer, like the Windows accessory "paint".
If it is not ok, then the problem lies in your servlet or browser. Make an html that contains a link to your image. Save it to the disk as a .jpg file through the browser. Is it the same as the file saved from blob directly? View the file through a graphic viewer.
Well, that is the idea. Just try various variations and locate the exact place where it goes wrong in your situation. Please tell me if this helps or not.

How to add byte[] array based Image to the SQL Server without using parameter

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here is Isle() method content

SQL Server binary constants use a hexadecimal format:
https://msdn.microsoft.com/en-us/library/ms179899.aspx
You'll have to build that string from a byte array yourself:
byte[] bytes = ...
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string binhex = builder.ToString();
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How to get a string or byte array representation of an Image/BufferedImage?

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Here you go:
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}

How to load and display a byte array (jpeg) image file dynamically in Flex?

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Hi,
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Byte array convert to image works fine for a peiod of time, Then error

Hi all
I'm on a program of reading incoming image set which comes as byte arrays through socket and convert them back to images using the method.
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Forgot to Mention i'm using Windows 8.1 - 32 GB Ram - i7-3970x - 2 SSd's in raid 0 for C Drive/ Storage drive is three ( 2 tb HDD in a raid 0 ) / Pictures Folder defaults to the Storage Drive not the Application drive .

Display an object of Image type or Byte Array

Hi, lets say i got an image stored in the Image format or byte[]. How can i make it display the image on the screen by taking the values in byte array or Image field?

Thanks rahul,
The thing is, i am generating a chart in a servlet
and setting the image in the form of a byte [] to the
view bean ( which is binded to the jsp, springs
framework ). The servlet would return the view bean
to the jsp and in the jsp, i am suppose to print this
byte array so as to give me the image..
I hope this makes sense.. pls help me ou!Well letme see if i got tht right or not,
you are trying to call Your MODEL (Business layer / Spring Container) from a servlet and you are expressing that logic in form of chart (Image) and trying to save it as a byte array in a view bean and you want to print /display that as an image in a jsp (After Servlet fwd / redirect action) which includes other data using a ViewBean.
If this is the case...
As the forwaded JSP can include both image and Textual (hypertext too)..we can try a work around hear...Lets dedicate a Servlet which retreives byte [] from a view bean and gives us an image output. hear is an example and this could be a way.
Prior to that i'm trying to make few assumptions here....
1).The chart image which we are trying to express would of format JPEG.
2).we are trying to take help of<img> tag to display the image from the image generating servlet.
here is my approach....
ViewBean.java:
============
public class ViewBean implements serializable{
byte piechart[];
byte barchart[];
byte chart3D[];
public ViewBean(){
public byte[] getPieChart(){
return(this.piechart);
public byte[] getBarChart(){
return(this.barchart);
public byte[] get3DChart(){
return(this.chart3D);
public void setPieChart(byte piechart[]){
this.piechart = piechart;
public void setBarChart(byte barchart[]){
this.barchart = barchart;
public void set3DChart(byte chart3D[]){
this.chart3D = chart3D;
}ControllerServlet.java:
=================
(This could also be an ActionClass(Ref Struts) a Backing Bean(Ref JSF) or anything which stays at the Controller Layer)
public void doGet(HttpServletRequest request,HttpServletResponse response) throws IOException{
/* There are few different implementations of getting   BeanFactory Resource
In,the below example i have used XmlBeanFactory Object to create an instance of (Spring) BeanFactory */
BeanFactory factory =
new XmlBeanFactory(new FileInputStream("SpringResource.xml"));
//write a Util Logic in your Implementation class using JFreeChart (or some open source chart library) and express the images by returning a byte[]
ChartService chartService =
(GreetingService) factory.getBean("chartService");
ViewBean vb = new ViewBean();
vb.setPieChart(chartService.generatePieChart(request.getParameter("<someparam>"));
vb.setBarChart(chartService.generateBarChart(request.getParameter("<someparam1>"));
vb.set3DChart(chartService.generate3DChart(request.getParameter("<someparam2>"));
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response.sendRedirect("jsp/DisplayReports.jsp");
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================
<%@ page language="java" %>
<html>
<head>
<title>reports</title>
</head>
<body>
<h1 align="center">Pie Chart </h1>
<center><img src="ImageServlet?req=1" /></center>
<h1 align="center">Bar Chart </h1>
<center><img src="ImageServlet?req=2" /></center>
<h1 align="center">3D Chart</h1>
<center><img src="ImageServlet?req=3" /></center>
</body>
</html>ImageServlet.java
==============
public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
       byte buffer[];
        HttpSession session = request.getSession(false);
        ViewBean vb = (ViewBean) session.getAttribute("ViewBean");
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        if(req.equals("1") == true)
            buffer = vb.getPieChart();
        else if(req.equals("2") == true)
             buffer = vb.getBarChart();
        else if(req.equals("3") == true)
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    }Note: Through ImageServlet is a Servlet i would categorise it under presentation layer rather to be a part of Controller and added to it all this could be easily relaced by a reporting(BI) server like JasperServer,Pentaho,Actuate................
Hope the stated implementation had given some idea to you....
However,If you want to further look into similar implementations take a look at
http://www.swiftchart.com/exampleapp.htm#e5
which i believe to be a wonderful tutor for such implementations...
However, there are many simple (Open) solutions to the stated problem.. if you are Using MyFaces along with spring... i would recommend usage of JSF Chart Tag which is very simple to use all it requires need is to write a chart Object generating methos inside our backing bean.
For further reference have a look at the below links
http://www.jroller.com/page/cagataycivici?entry=acegi_jsf_components_hit_the
http://jsf-comp.sourceforge.net/components/chartcreator/index.html
NOTE:I've tried it personally using MyFaces it was working gr8 but i had a hardtime on deploying my appln on a Portal Server(Liferay).If you find a workaround i'd be glad to know about it.
& there are many BI Open Source Server Appls that can take care of this work too.(Maintainace wud be a tough ask when we go for this)
For, the design perspective had i've been ur PM i wud have choose BI Server if it was corporate web appln on which we work on.
Hope this might be of some help :)
REGARDS,
RaHuL

Displaying Byte Array images in coldfusion

This has been driving me crazy for a couple of days now.I
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I am able to display the image but that is all i am able to
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I tried using CFcontent as well and that did not help
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Picture Description:#variables.picDescription#
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Mark,
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Subbu
Mark Gilleece wrote:
Hi,
i need to display a PDF file. The PDF is stored in a byte array. This works fine when i run my code (see below) from the .jpf via the debugger/browser, but when i use it as a portlet, in the portal, it does not work ?
Any help is much appreciated.
Thanks
Mark
byte[] pdfDocument = docStore.getPDF();
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Display byte array image or ole object in Section through dynamic code?

To Start I am a Complete Newbe to Crystal Reports. I have taken over a project originally written in VS2003 asp.net using SQL Server 2005 and older version of Crytal Reports. I have moved project to VS2010 and Cryatal Reports 10 still using SQL Server 2005. Have multiple reports (14 to be exact) that display data currently being pulled from database suing a dataset, each report has from 4 to 14 Sections. I have modified database table with two new fields. Field1 contains string data with full path to a scanned document (pdf or jpeg). Field2 holds a byte array of the actual image of the scanned document. I have tested the database and it does infact contain the byte array and can display the image via VB.net code. I can make the report display the scanned image using ole object.
Now my real question: I need to add a new Section and it should display either the byte array of the scanned image or the actual scanned image (pdf or jpeg) . How can I have it do either of these options via code dynamicly while application is running?

First; only CRVS2010 is supported on VS2010. You can download CRVS2010 from here;
SAP Crystal Reports, developer version for Microsoft Visual Studio: Updates & Runtime Downloads
Developer Help files are here:
Report Application Server .NET API Guide http://help.sap.com/businessobject/product_guides/sapCRVS2010/en/xi4_rassdk_net_api_en.zip
Report Application Server .NET SDK Developer Guide http://help.sap.com/businessobject/product_guides/sapCRVS2010/en/xi4_rassdk_net_dg_en.zip
SAP Crystal Reports .NET API Guide http://help.sap.com/businessobject/product_guides/sapCRVS2010/en/crnet_api_2010_en.zip
SAP Crystal Reports .NET SDK Developer Guide http://help.sap.com/businessobject/product_guides/sapCRVS2010/en/crnet_dg_2010_en.zip
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Also, don't forget to use the search box in the top right corner of this web page.
Ludek
Follow us on Twitter http://twitter.com/SAPCRNetSup
Got Enhancement ideas? Try the [SAP Idea Place|https://ideas.sap.com/community/products_and_solutions/crystalreports]

Save byte array (image) to file with servlet

Good day.
I should must to save a png image to file.
I have a byte array of the image.
This work is in a servlet.
How can I do it?
Best regards.
Stefano Errani

Good day.
I have a byte[] and then I have used
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This on my web server that has public_html as root web directory.
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In this mode I have an error.
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In both ways I have obtained an error.
At last I have tryied in my localhost (local machine) using
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All run correclty.
The Application Server is Tomcat with Apache HTTP Server.
The first server (of www.stefanoerrani.it) has Linux as OS.
My local server has Windows as OS.
I should want, if it's possible, an help.
Best regards.
Stefano Errani

How to send byte array of image with 300dpi.

Hello fiends
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Thanks david for such a quick reply.the link is really helpful.So we have to calculate the screendpi thruogh our code and then set the height and width of image.is there any simple way to sort out my problem.i just want to print my image at 300dpi but i am using image snapshot class so its taking the snap of my container(image) and save the image at 96 dpi which is dpi of my screen(monitor).so is there any way or any class in flex through which i got the image at its original dpi.i am not stick on 300 dpi but i m getting image from backend through xml at 300dpi.thats why i want the byte array i am sending should be at 300dpi.i am totally confused now.so please help me.
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Byte array to png image conversion

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dubwai
Just looked at your code again. Did you mean int,not
long?He wanted an unsigned int (which of course doesn't
exist in Java) and if you look at his original code it
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Thanks for the nio tip, I'd not looked into that stuff and really should.
Lee
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Image Byte Array - Hex?

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