How to display images real-time?

How, (using CVI, NI-IMAQ and IMAQ Vision) can I duplicate the Grab function seen in MAX; in other words, I want to display images at the frame rate of my camera (30 fps). I've come across several examples on this site, the best of which seemed to be "Performing Real-time Image Acquisition, Averaging, and Logging" (realtime_image_averaging.zip), but this example, built with LabView, can't find several vi's (IMAQ WindDraw.vi, IMAQ Convert.vi, IMAQ Add.vi, IMAQ Divide.
vi, IMAQ WriteFile.vi) needed to run it. I have LabView 5.1, NI_IMAQ 2.6 and IMAQ Vision for LabView 4.01). Please note that, although I'll accept LabView, I prefer a CVI solution.
Thanks in advance for any help.
'til next we type...
Jesse

I would strongly recommend upgrading to the current version of Vision. There have been major improvements since the version you have. I suspect the examples have improved significantly also, which would probably be worth the cost of the upgrade. I have attached a simple grab and display example in LabVIEW that I saved to LV 5, but I can't be sure it will work with the old version of Vision. Since you want to use CVI, it probably won't do you much good anyway.
Bruce
Bruce Ammons
Ammons Engineering
Attachments:
HL_Grab_in_IMAQ_Vision_display.vi ‏36 KB

Similar Messages

How to display images on my internal isight?

Hi,
I just bought the new iMac 2 gig dual. Running on 10.5.2.
I wanted to know how to display images on my screen during a video conference chat without resorting to holding up a print out to the camera? I need something where I can switch from video mode to image mode and show a single image at a time if I need to. All that while still talking of coarse. If it isn't possible with my iSight software, can you point me to other software I can download and still use my built in cam?
I hope I was clear enough in asking this.
Thanks
Liban

Welcome to Apple Discussions, Liban
iChat can do what you want, but I do not know of any web-based video chat site that can.
Look for Help or Support information on the site you are using or ask the Webmaster if his site has the capability to do what you want.
EZ Jim
PowerBook 1.67 GHz w/Mac OS X (10.4.11) G5 DP 1.8 w/Mac OS X (10.5.2) External iSight

How to display date and time on jsf page

Hi,
how to display date and time on jsf page
we are using 11.2.0.0 jdeveloper on windows.
thanks
Edited by: user12187801 on 26-Jul-2012 01:42

Your question is certainly lacking some information.
If you want a constantly updating date/time - then JavaScript is your best bet, and Google would find you examples like [url http://www.webestools.com/scripts_tutorials-code-source-7-display-date-and-time-in-javascript-real-time-clock-javascript-date-time.html]this
If you meant something else, then it's back to you to explain.

How to display image?

Hi all,
How to display image from the database table in the adobe form by using web dynpro abap?
I want to display image in the adobe interactive form by using web dynpro abap.
Please help me.
Regards,
srini

Hi Srini,
If you go through the article you might have seen the following piece of code
*** Send the values back to the node
lo_el_z_if_test_cv->set_static_attributes(
EXPORTING
static_attributes = ls_z_if_test_cv ).
" here ls_z_if_test_cv has the image in XSTRING format which has beeen retrived using METHOD get_bds_graphic_as_bmp of CLASS cl_ssf_xsf_utilities
" In your case you need to just use the select query n fetch it from your table; ( provided your image is store in XSTRING format )
How is your image stored in your database table ?
Regards,
Radhika.

How to display images and information

how to display images and information(e.g. like questions) on a jsp page that stored in a database

Look As far as i can see....
Utlimately every file could be expressed as a bytes buffer.
so say if you have a bean called Choice Bean which is expressed as
public class ChoiceBean{
   private String choiceid;
   private String choicedesc;
   private byte image[];
   public void setChoiceId(String choiceid){
          this.choiceid = choiceid;
    public String getChoiceId(){
           return this.choiceid;
      public void setChoiceDesc(String choicedesc){
           this.choicedesc = choicedesc;
       public String getChoiceDesc(){
           return this.choicedesc;
       public void setImage(byte image[]){
              this.image = image;
         public byte[] getImage(){
              return this.image;
}QuestionList.java:
===============
public class QuestionList{
     private List<ChoiceBean> choicelist;
      /*Other member variable declarations*/
       public List<ChoiceBean> getChoiceList(){
                /*Custom code where you may build the list by querying the DA layer*/
                 return this.choicelist;
     public int search(String choiceid){
             int index = -1;
             for(int i =0 ; i < this.choicelist.size() ; i++){
                    ChoiceBean cb = this.choicelist.get(i);
                     if(cb.getChoiceId().equals(choiceid)){
                            index = i;
                            break;
             return index;
    /* Other member method declarations */
}and you are retreving List<ChoiceBean> from DB using your query & have created a session attribute / <jsp:useBean> named ChoiceList
NOTE: sometimes your application server can go out of bounds as you are consuming a lot of memory by creating an arraylist object.
use the following methodology to display images & choices
sample.jsp:
=========
<jsp:useBean id="QuestionList" class="com.qpa.dao.QuestionList" scope="session"/>
<TABLE>
<%
/* QuestionList.getChoiceList() is a method which fetches data from the DB & returns it in form of List<ChoiceBean> */
List<ChoiceBean> choicelist = QuestionList.getChoiceList();
for(int i =0 ; i < choicelist.size() ; i++){
%>
<TR>
<TD><%!=choicelist.get(i).getChoiceId()%></TD>

<TD><IMAGE src="ImageServlet?choiceid=<%!=choicelist.get(i).getChoiceId()%>"/> </TD>
<TD><%!=choicelist.get(i).getChoiceDesc()%></TD>
</TR>
<%
%>
</TABLE>
<%
    session.remove("QuestionList");
%>
NOTE: usage of JSTL or any other custom built tag-libraries makes life more simpler in the following case
ImageServlet.java:
===============
public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        byte buffer[] = null;
        HttpSession session = request.getSession(false);
        /*getting the QuestionList from the session*/
        QuestionList ql = null;
        String choiceid = new String("");
        try{
             choiceid = request.getParameter("choiceid");
             /*getting the QuestionList from the session*/
            ql = (QuestionList) session.getAttribute("QuestionList");
        } catch(Exception exp){
        if(choiceid.equals("") == false && ql != null ){
            List<ChoiceBean> clist = QuestionList.getChoiceList();
               assuming that you have created a serach method which searches the entire choice list and would give you
               the index of that object which is being refered by unique choiceid and returns -1 if not found
            int index = QuestionList.search(choiceid);
            if(index != -1){
               ChoiceBean cb = clist.get(index);
               buffer = cb.getImage();
        if(buffer != null){
             // assuming that we have stored images in JPEG format only
             JPEGImageDecoder decoder = JPEGCodec.createJPEGDecoder(new ByteArrayInputStream(buffer));
             BufferedImage image =decoder.decodeAsBufferedImage();
             response.setContentType("image/jpeg");
             // Send back image
             ServletOutputStream sos = response.getOutputStream();
             JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(sos);
             encoder.encode(image);
        } else {
           response.setContentType("text/html");
           response.getWriter().println("<b>Image data not found</b>");
}However,i still feel there are few loopholes with this approach where Application Server can eat up a lot of heap space which may result in outofmemorybound exception.
Hope this might help :)
REGARDS,
RaHuL

How to read bytes(image) from a server ?how to display image after read byt

How to read bytes(image) from a server ?how to display image after reading bytes?
i have tried coding tis , but i couldnt get the image to be display:
BufferedInputStream in1=new BufferedInputStream(kkSocket.getInputStream());
int length1;
byte [] data=new byte[1048576];
if((length1=in1.read(data))!=-1){
System.out.println("???");
}System.out.println("length "+length1);
Integer inter=new Integer(length1);
byte d=inter.byteValue();

didn't I tell you about using javax.imageio.ImageIO.read(InputStream) in another thread?

HOW TO DISPLAY CURRENT DATE TIME IN MASTHEAD IN BRANDING IMAGE AREA

Hi experts,
I need to display current date time in masthead also and also i should change the welcome area to my own text there how it is possible.....
and plz tell detail coding also as i dont have idea to change the coding plz help in this............
where to chan ge and how to change.............
waiting for u r responses......................
Regards,
Shilpa.

Shilpa,
go to system administratioon-system configuration-support-support desk-browse deployment-check for com.sap.porta.navigation.masthead.par and download it to nwds.
when you import it to NWDS jar file will be missing so you need to manually add that to PORTAL-INF/private/lib.
once you do this go to HeaderiView.jsp in PORTAL-INF/jsp folder.
write
<%= new java.util.Date()%> after <hbj:form id="HeaderForm">.for that matter u can write this at any line after this statement
once you do that select qucik par upload from the tool bar and deploy it.
go to system administration-system configuration-support-support desk-administration console and upload the par file
before following these steps take a backup of par file
reward points if helpful

How to display images in TextArea? and how to make some of the text clickab

1) How do i make TextArea display images?
(example a client program, where people chat, put :) and get a smily image)
2) For example if text is http://www.something.com in textArea, a person can click it, and my custom dialog will apear saying something about this link.......

This has been discussed very many times! It is solvable. Search the forum!
one way is to make a custom textarea extending Canvas, and painting the text in the paint() method. You need a paint method with drawString and drawImage calles to make it the way you describe it. You also need to add a MouseListener for detection of clicking.

Popup Display in Real Time Warning

Hi,
I am using SAP ME 5.2.4.7.
I am configuring Real Time Warning. I configured the following settings.
1) In the event maintenance, I used the event type as RTW_CONSEC_NC and event activity as CONSEC_NC_HOLD_REL. (I used all the default settings of CONSEC_NC_HOLD_REL).
2) In the Pod Maintenance, for * POD, I set the Real Time Event Display as Popup.
3) In Real Time Warning Maintenance, I added top level material, operation and resource where I want real time warning and in the Consecutive Identical NC panel, I added NC Count level as NC Code, Non Conformance as Failure code (F01), Event Type as RTW_CONSEC_NC and Count as 1.
If I do Non Conformance for more than two times for an SFC, there is neither popup message nor the resource setup is changed into Hold Consec NC. But when I set the Real Time Event Display as Window, I am getting a display saying the operation is not available for use in the POD itself.
Kindly let me know whether I need to do any other configurations to get a Popup display?
Thanks,
Joe

Do you have indicators on your front panel that display a value from a software counter?
How are you updating or refreshing the displays? If you have indicators in a while loop then the indicators will be updated with each iteration of the loop.
Chris_Mitchell
Product Development Engineer
Certified LabVIEW Architect

How to display the elapsed time of a video (event video) in Captivate 6

I have a Captivate 6 project which includes two separate videos and I am wondering how I can display an elapsed time for the videos - preferably one that stops if the individual stops the video.

Hello and welcome to the forum,
Are you talking about an inserted video, or about the Captivate file itself? I'm asking this because a lot of users refer to a published CP-file as a video.
'Elapsed time': is this the real time spent by the user, or the time as you can see in the TOC (developer's time)? I blogged once about the difference.
Lilybiri

How to display images in a Jtable cell-Urgent

Hay all,
Can anybody tell me that can we display images to JTable' cell,If yes the how do we do that(with some code snippet)? Its very urgent .Plz reply as soon as possible.

Here is an example
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.*;
class SimpleTableExample extends JFrame
     private     JPanel topPanel;
     private     JTable table;
     private     JScrollPane scrollPane;
     public SimpleTableExample()
          setTitle( "Table With Image" );
          setSize( 300, 200 );
          setBackground( Color.gray );
          topPanel = new JPanel();
          topPanel.setLayout( new BorderLayout() );
          getContentPane().add( topPanel );
          // Create columns names
          String columnNames[] = { "Col1", "Col2", "Col3" };
          // Create some data
          Object data[][] =
               { (ImageIcon) new ImageIcon("User.Gif"), (String) "100", (String)"101" },
               { (String)"102", (String)"103", (String)"104" },
               { (String)"105", (String)"106", (String)"107" },
               { (String)"108", (String)"109", (String)"110" },
          // Create a new table instance
DefaultTableModel model = new DefaultTableModel(data, columnNames);
          JTable table = new JTable( model )
               public Class getColumnClass(int column)
                    return getValueAt(0, column).getClass();
          };          // Add the table to a scrolling pane
          scrollPane = new JScrollPane( table );
          topPanel.add( scrollPane, BorderLayout.CENTER );
     public static void main( String args[] )
          SimpleTableExample mainFrame     = new SimpleTableExample();
          mainFrame.setVisible( true );
}

How to display images in a table column?

Hi,
In a VC model, I have to display images in a table column for each record found.
How can this be done?
Regards,
Nitin

Hi Nitin,
It can be done by adding to the table the Image control (can be found under Advanced Controls in the Compose panel).
In the URL property (in the Configure panel of the Image control) you can define any expression that will return the image URL. For example:
="http://hosting.site.url/"&@ImageNameField
Regards,
Udi
Edited by: Udi Cohen on Jun 11, 2008 1:39 PM

How to display the current time in a UIX page

Hi All,
another UIX question....
A requirement of a customer is to display to current data and time in every page.
It should be done in a <header>. So i'm writing a new (template based) renderer for that element. How can i display the current time and date on it?
Thanks in advance for any help...
Regards,
Robert Willems

Hi Robert -
When you say you are writing a template-based Renderer, do you mean that you are creating a custom look and feel and replacing the header Renderer? If so, I'd recommend instead simply creating your own template (not template-based Renderer), and reference your template directly from your uiXML pages where you want to insert the timestamp.
You'll probably want to write a method data provider which calls System.currentTime(), convert the result to a date, and then use Java's date formatting capabilities (see java.text.format.DateFormat) to produce a user presentable String that you can return from your data provider.
For more info (and samples) on templates and data binding, see the "Templates and Data Binding" section of the "Includes and Templating in ADF UIX" help topic:
http://tinyurl.com/5b7bf
Andy

How to display images on local disk(outside of WebContent of WAR) in jsp?

In a web application, I want to display images on local disk(outside of WebContent of WAR) in jsp. I couldn't put it in "WebContent/images/" because the images are portraits of users and they could be changed dynamically. If I put images in "WebContent/images/", I have to transfer the images back and forth every time when I update my WAR file.
Obviously, in jsp, something like
"<img src="/home/username/images/local/PRTR.jpg" />"
doesn't work.
Is it durable to store the images at somewhere else like "/home/username/images/local/" in the server's local disk?

Hi aiGrace,
You have to transform your file path into the appropriate URL, this way :
try {
    File file = new File("D:/Test/MyPic.jpg");
    System.out.println(file.toURI().toURL());
} catch (MalformedURLException ex) {
    ex.printStackTrace();
}Then, you insert the URL in your img tag.

How to display elapsed/current time of a song in Actionscript.

Hi I have a question on how I can make my code display a total time for a song from a media player I created with Actionscript 3.0, using XML to load the song track.
This is my current function which I have done and I am unsure on what the problem is that is not allowing the elapsed time to display in a textfield on my stage.
stage.addEventListener(Event.ENTER_FRAME, timeElapsed);
function timeElapsed(e:Event):void
                    var minutesCurr:Number = Math.floor((my_channel.position /1000) /60);
                    var secondsCurr = Math.floor((my_channel.position /1000) % 60);
        if (secondsCurr < 10)
            secondsCurr = "0" + secondsCurr;
        var minutesTot:Number = Math.floor((my_sound.length /1000) /60);
        var secondsTot = Math.floor((my_sound.length /1000) % 60);
        if (secondsTot < 10)
            secondsTot = "0" + secondsTot;
        completeText_txt.text = minutesCurr + ":" + secondsCurr + "/" + minutesTot + ":" + secondsTot;
I tried adding to the stage and I am getting a null object reference.
Thanks Casey

The 1009 error indicates that one of the objects being targeted by your code is out of scope. This could mean that the object....
- is declared but not instantiated
- doesn't have an instance name (or the instance name is mispelled)
- does not exist in the frame where that code is trying to talk to it
- is animated into place but is not assigned instance names in every keyframe for it
- is one of two or more consecutive keyframes of the same objects with no name assigned in the preceding frame(s).
If you go into your Publish Settings Flash section and select the option to Permit debugging, your error message should have a line number following the frame number which will help you isolate which object is involved.

How to display images real-time?

Similar Messages

Maybe you are looking for