Display an image from an array of bytes

Hi, I'm trying to display an image from the raw pixel values. lets say i read a bmp file to an array, chuk the header off and want to display the pixel. How can I do this? I don't want any file formats, just want to display the pixels and creat the image. Is this possible?
Many thanks,
H

Thanks for the reply. I had a look at MemoryImageSource and other classes that relates to it. I wrote the example given, but it doesn't identify createImage(). I've implemented ImageProducer, but still complains. Have you any idea why? Thanks for your help.
H

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Fail to index out images from an array of images!

Hi all,
I encountered this problem lately. I am indexing a number of images in an array using a for loop. Next the array of images (16 bit) is used somewhere else in the program; it is indexed and the images are to be processed and displayed. The problem is; when trying to index the images from the arrays using the index array the result is the same image regardless of the index!
Can anyone explain that for me?
Thanks in advance
Solved!
Go to Solution.

When you used the IMAQ create VI you specified each image to use the same name of "image". Each image has to have a unique name. I edited your VI to give a unique name for each image and I was able to view three different images in three different viewing panes.
Attachments:
Image Array Reworked.vi ‏19 KB

How can I display an image from a shared-network folder?

Hi
Does anyone know how I can display images from within APEX that are found outside the database? What configuration have I missed?
Within Windows-Internet-Explore I can access the following image using the below URLs, BUT I cannot access it from within APEX?
What do I need to do so APEX can display theses images from our internal shared network folder?
both these URLs work within Firefox (but on APEX):
\\Saremote\UPDOWNFILES_DIR\polk_insight.gif
file://///Saremote/UPDOWNFILES_DIR/polk_insight.GIF
So within APEX I have created a "display as Text' Item that works with this "amazon image" syntax:
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BUT sadly not with my image:
{lessthan} IMG SRC= {doublequot} file://///Saremote/UPDOWNFILES_DIR/polk_insight.GIF {doublequot} {greaterthan}
Any ideas would be appreciated.
Thanks
Steve
Edited by: [email protected] on Sep 12, 2008 8:30 AM
Edited by: [email protected] on Sep 12, 2008 8:31 AM
Edited by: [email protected] on Sep 12, 2008 8:32 AM
Edited by: [email protected] on Sep 12, 2008 8:33 AM

If you have a local html file, or open an image locally from the menu, then yes, it works, but with web pages that are served from a remote location (web server), security kicks in and prevents the web page from accessing local files (and files on a networked drive).
you will either have to put the image on the web server and access it through http, or you can load it into the database/workspace images and access it that way.

How to create an array in one field and have another field display certain elements from that array?

I am making a form in Acrobat XI pro.
In one text field, I created an array of several elements. I want other text fields to display certain elements from that array. For instance, one field should display the 3rd element, another field should display the 13th element, etc.
The Javascript for making the array is very long, and so I don't want to have to re-calculate the array every single time (in order to reduce rendering time when I open the form on an iPad). This is why I'd like to only have to create the array once, and simply refer to it throughout the form.

What code are you using to update the array currently? Are you completely rebuiding it when an element changes, or just changing specific elements for certain fields? I'm still not sure what exactly you are trying to do, but something like this in a document level script will create your array:
var myArray;
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updateArray();
function updateArray() {
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Can i display all images from databases with adf jsp

hi
I want to display all images from the databases whit adf bussines components, because with the sample on http://www.oracle.com/technology/training/products/intermedia/index.html page, i only can display 10 images. i'd lije to know if i can to search in the databases by the id of the image.
this is the code:
%@ taglib uri="http://xmlns.oracle.com/adf/ui/jsp/adftags" prefix="adf"%>
<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c"%>
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html"%>
<%@ page contentType="text/html;charset=windows-1252"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
<title>untitled</title>
</head>
<body>
<html:errors/>
<table border="1" width="100%">
<tr>
<th> </th>
<th>
<c:out value="${bindings.ImagenView1.labels['Id']}"/>
</th>
<th>
<c:out value="${bindings.ImagenView1.labels['Descripcion']}"/>
</th>
<th>
<c:out value="${bindings.ImagenView1.labels['Image']}"/>
</th>
</tr>
<c:forEach var="Row" items="${bindings.ImagenView1.rangeSet}">
<tr>
<td>
<c:out value="${Row.currencyString}"/>
</td>
<td>
<c:out value="${Row['Id']}"/>
</td>
<td>
<adf:render model="Row.Image"/>
</td>
<td>
<c:out value="${Row['Image']}"/>
</td>
</tr>
</c:forEach>
</table>
</body>
</html>

I think you want the interMedia JSP tag library...
http://www.oracle.com/technology/software/products/intermedia/htdocs/descriptions/tag_library.html
Larry

Converting a PNG image to an array of bytes and vice versa..

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Regards,
D.Roth

hi all,
i need to convert a PNG image to an array of bytes ,then converting back this array of bytes to The PNG image again ,i read this can be done using output streams but i feel like a dump and i can't fix the whole thingy out ! ,can anybody help me in this ,by explaining how can this be established????
Regards,
D.Roth

[Forum FAQ] How to display an image from Http response in Reporting Services?

Question:
There is a kind of scenario that users want to display an image which is from URL. In Reporting Services, if the URL points to an image file, we can directly display it by typing the URL in embedded image. However, some URLs are just sending Http requests
to server side, then redirect to another position and the server will return the image. For these kind of URLs, Reporting Services can’t directly render the image from Http response.
Answer:
To achieve this goal, we can add custom code into the report. Pass the URL as argument into our custom function so that we can create HttpRequest and get the HttpResponse. Then we can use custom function to return the Bytes() from the HttpResponse and render
it into an image in report.
Ps: In Reporting Services, it only support drawing Bytes() array into image, so we need to have our custom function return Bytes array.
Add the assembly and custom code into the report.
Public shared Function GetImageFromByte(Byval URL as String) As byte()
                Dim photo as System.Drawing.Image
         Dim Request As System.Net.HttpWebRequest
       Dim Response As System.Net.HttpWebResponse
              Request = System.Net.WebRequest.Create(URL)
                 Response = CType(Request.GetResponse, System.Net.WebResponse)
             If Request.HaveResponse Then
                  If Response.StatusCode = Net.HttpStatusCode.OK Then
                       photo = System.Drawing.Image.FromStream(Response.GetResponseStream)
                 End If
            End If
              Dim ms AS System.IO.MemoryStream = new System.IO.MemoryStream()
             photo.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg)
                Dim imagedata as byte()
                imagedata = ms.GetBuffer()
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End Function
Grant the permission for assemblies.
Go to:
C:\Program Files (x86)\Microsoft Visual Studio 9.0\Common7\IDE\PrivateAssemblies\RSpreviewPolicy.config
C:\Program Files\Microsoft SQL Server\MSSQL\Reporting Services\ReportServer\rssrvpolicy.config
Give “FullTrust” for Report_Expressions_Default_Permissions.
Insert an image into report.
Expression:
=Code.GetImageFromByte("https://encrypted-tbn2.gstatic.com/images?q=tbn:ANd9GcSrVwPoAtlcA2A3KaiAJi-XjS4icr1QUnKYr7uzpX3IL3g2GPisAQ")
The Result looks below:
Applies to:
Reporting Services 2005
Reporting Services 2008
Reporting Services 2008 R2
Reporting Services 2012
Reporting Services 2014
Please click to vote if the post helps you. This can be beneficial to other community members reading the thread.

>
Hi, I'd like to display a dynamic image from the web inside a JLabel or any other swing component it could work in. I've been looking on the Swing tutorials and others forums, all I can have is that a JLabel can load an Icon object, defined by an image URL, but can this URL be like "http://xxxxx/image.jpg" somehow or can it only be a local image URL?>
I do not know why you start talking about an image on the web then go on to show concerns about whether it will work for a 'local' URL.
But perhaps this answer will cover the possibilities.
So long as you can from an URL to the image, and the bytes are available for download (e.g. some web sites wrap a direct call to an image in HTML that embeds the image), the URL based icon constructors will successfully load it.
It does not matter if that URL points to
- a web site,
- a local server ('localhost'),
- an URL representation of a File on the local file system, or
- it is inside a Jar file that is on the application's run-time classpath.
How you go about forming a valid URL to a 'local resources' (or indeed what you regard as local resources) is another matter, depending on the form of the project, and how the resources are stored (see list above).
Probably the main reason that examples use images at a hard coded URL on the net is that it makes an 'image example' self contained. As soon as we compile and run it, we can see the result. I have posted a few examples like that on these forums.
Edit 1:
BTW - Welcome to the Sun forums
Edited by: AndrewThompson64 on Apr 21, 2009 12:15 PM

I tried to display gif image from oracle to jsp but nothing appear

i tried to display image from oracle DB to jsp directly without using file processing , and i used Servlet and jsp , Servlet to get image from DB and jsp to use <img> tag , when i Run Servlet code
the image appaer on Microsoft Photo Editor , and when i run jsp the image dose not appear on jsp page , so please anyone has an idea about this broblem ,send the soluation or any information to my e-mail [email protected] , and I'll thankful about your help.
the Servlet and jsp code are below .
thank for your help
Servlet:
import java.io.InputStream;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.PrintWriter;
import java.io.IOException;
public class Servlet extends HttpServlet
public void init(ServletConfig config) throws ServletException
super.init(config);
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
response.setContentType("image/gif");
int id = Integer.parseInt(request.getParameter("no"));
// int id = 2 ; when Run Servlet .
ResultSet rs = null;
Connection Lcon = null;
String stmt = " select Image from ImageTable where lmage_id ="+id;
Statement sm = null;
String data1 ="";
try
Lcon = getConntcion();
sm = Lcon.createStatement();
rs = sm.executeQuery(stmt);
if(rs.next())
InputStream in = rs.getBinaryStream(1);
ServletOutputStream sout = response.getOutputStream();
int c;
while((c=in.read())!= -1)
sout.write(c);
in.close();
sout.flush();
sout.close()
}catch(Exception e)
System.out.println("error in selectValue the error is "+e);
finally
rs .close( );
sm .close( );
Lcon.close( );
public Connection getConntcion()
Connection con = null;
try{
DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
con = DriverManager.getConnection(",,,,,,,, DB Info ,username and password ,,,,,,,,,,,");
}catch(Exception e)
System.out.println("error in connection the error is "+e);
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Jsp code :
<%@ page contentType="text/html"%>
<html>
<head
</head>
<title> testing image </title>
<body>
<form>
<img src="servlet/Servlet?no=2">
</form>
</body>
</html>

InputStream in = rs.getBinaryStream(1);
byte[] image= null;
ByteArrayOutputStream baos = new ByteArrayOutputStream();
byte[] buffer = new byte[8192];
int bytesRead = 0;
while ((bytesRead = in.read(buffer, 0, 8192)) != -1)
     baos.write(buffer, 0, bytesRead);
image= baos.toByteArray();
in.close();
ServletOutputStream sout = response.getOutputStream();
if (image != null)
       sout.write(image);
       sout.flush();
}

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Thanks in advance...

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Check the below link, it will be useful for you:
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