Display a grab image using subVI

Hi, i have a problem.. i hope it is easy to solve.
I did a VI using Grab IMAQdx so that i can adquire images from a USB Camera and save a video. It works great and i acquire and save the video. The problem is that when i try to do this VI as a subVI it doesn't work. For the subVI i'm using one terminal the one for the image display. When i run the program i can't see any image (set of images because i'm using grab and it seems like a video), but it seems that the subVI woks because when i open the file where the video was saved, the video is there but i can't see it at the momento on the front panel...
Any suggestions?
Solved!
Go to Solution.

Your main vi will not update the image that you acquire in the sub vi because you would be running your sub vi inside a loop ( I guess). What you can do is create a global variable of Image display indicator and update the indicator inside the sub vi. In the main vi create a seperate while loop and read the global variable and display it in the main vi. Need a better solution? please post your code.
The best solution is the one you find it by yourself

Similar Messages

Grab images using IMAQ without sending frame request

Hello,
When a camera is externally triggered, is it possible to design a *.vi that makes use of IMAQ and grabs images via Camera Link frame grabber without sending frame request signals AND without knowing the external trigger? Just to grab images whenever FVAL, LVAL and DVAL go high. Possible?
Thanks.

Greetings, kcin;
Just to check whether I understood or not, to have the Framegrabber acquire images when the FVAL, LVAL and DVAL lines go high with no other communication between the camera and the host computer? What exactly is the purpose of this endeavor?
Initially, I do not believe it would be possible while using our IMAQ Driver simply due to the way it is designed; I will look into the matter further and inform you of my findings.
Cordially;
Simon P.
National Instruments
Applications Engineer

Problem grabbing image using libdc on ubuntu 12.10,build on new firewire-stack unibrain fire-i camera

i am new to digital camera softwares.i am using unibrain fire-i camera on ubuntu 12.10 .firewire stack is new,i am using libdc1394 for grabbing images.i try to execute the example program grab-gray-image.the output image file is not giving result what i expected . i try to grab a human face image.i am adding this as an attachment. the camera parameters are as follows.
Brightness:
RC MC (active is: AUTO) AC (active is: AUTO)
min: 128 max 383
current value is: 304
Exposure:
RC MC (active is: AUTO) AC (active is: AUTO)
min: 0 max 511
current value is: 511
Sharpness:
RC MC (active is: MAN)
min: 0 max 255
current value is: 80
White Balance:
RC MC (active is: AUTO) AC (active is: AUTO)
min: 0 max 255
B/U value: 95 R/V value: 87
Hue:
NOT AVAILABLE
Saturation:
RC MC (active is: MAN)
min: 0 max 255
current value is: 90
Gamma:
RC MC (active is: MAN)
min: 0 max 1
current value is: 1
Shutter:
RC MC (active is: MAN)
min: 0 max 7
current value is: 6
Gain:
RC MC (active is: MAN)
min: 0 max 255
current value is: 87
Iris:
NOT AVAILABLE
Focus:
NOT AVAILABLE
Temperature:
NOT AVAILABLE
Trigger:
NOT AVAILABLE
Trigger Delay:
NOT AVAILABLE
White Shading:
NOT AVAILABLE
Frame Rate:
NOT AVAILABLE
Zoom:
NOT AVAILABLE
Pan:
NOT AVAILABLE
Tilt:
NOT AVAILABLE
Optical Filter:
NOT AVAILABLE
Capture Size:
NOT AVAILABLE
Capture Quality:
NOT AVAILABLE
i am unable to identify the problem .please anyone help me.
Thanks in advance.

Excellent Blog. Thank You
Small clarification on Step **6) Oracle Home Directory, ...a) Resize the Root Partition**
Ubuntu 11.10 has Gparted available as a Ubuntu software download, DONT use that while trying the above step, instead download the ISO file from http://sourceforge.net/projects/gparted/files/gparted-live-stable/ gparted-live-0.12.0-5.iso (124.6 MB)
Burn that ISO file on a Blank DVD, reboot the Ubuntu , during startup select Boot from DVD Option if not already selected. this will take to Boot Menu Options of Gparted Live then select the first menu option, and this allows to do further action such as Re-sizing .
and once you have chosen and executed step a) . do NOT run step b) also that is "Setup External Storage"
I hope this minor clarification can avoid some confusion
Regards
Madhusudhan Rao
Edited by: MadhusudhanRao on Mar 24, 2012 11:30 PM

Displaying a dynamic image using a PDF file.

I am trying to find a way to display an image dynamically in my report. The image happens to be .pdf I have Crystal Reports XI and I have the graphic location formula completed "
10.93.138.250\Production\ProdOut\00\" & {Order_Record.URN_text} + "_p1.pdf" however it tells me PDF is not supported. Is there a way around this?

I have to agreed that what you are saying appears to be true from my attempts at getting .pdf files to work dynamically. Using .bmp and .jpg files seems to work just fine but not .pdf, .xls, or .doc.
In the Users Guide, in chapter 16, in the section titled "Working with static OLE objects" - it only talks about the picture type formats you mentioned and metafiles. Later in this section is where it explains how to make a static OLE object dynamic.
While it doesn't specifically say it won't work for other types - it sure doesn't seem to. I see no reason why this should be true however! Certainly Crystal appears to be set up to allow this and the fact that the objects are not images shouldn't matter. Why is there a picture tab and a conditional formula button next to the graphic location label on the object if it can't be used?
I'm trying to do something similiar to Carey. I have maps to customers in a customer list and they are in .pdf files. The location of the map is stored in the database. I'm putting together a report of service calls and I want to print the map with each call. It looks like I'll have to convert several thousand .pdf files to .jpg - that should be fun!
Any chance this limitation will be eliminated sometime soon...
Edited by: Randy Walter on Oct 2, 2008 6:40 PM

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
To add the images, you have a number of options re. how to. You even have two SDKs that y ou can use (RAS and CR).
Perhaps the best place to start is with KB [1296803 - How to add an image to a report using the Crystal Reports .NET InProc RAS SDK|http://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/oss_notes_boj/sdn_oss_boj_bi/sap(bD1lbiZjPTAwMQ==)/bc/bsp/spn/scn_bosap/notes%7B6163636573733d36393736354636443646363436353344333933393338323636393736354637333631373036453646373436353733354636453735364436323635373233443330333033303331333233393336333833303333%7D.do]. The KB describes how to add images to a report using the InProc RAS SDK, but also references other KBs that use CR SDK.
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]

How to Snap/Grab Image from 1394 camera and display the Image in CWIMAQVIEWER in VC++ ?

Hi,
I have : - IMAQ1394 2.0.1
              - NI Vision 7.1
In VB, I can Snap/Grab Image from 1394 camera and display the Image in CWIMAQVIEWER :
    Dim Image0 As New CWIMAQImage
    imaq1394SnapCW(sid0,Image0)
    CWIMAQViewer1.Attach Image0
Now,How can I do this in VC++6.0?
    I tried:
              C_CWIMAQImage m_imgViewer1;
              m_imgViewer1 = m_CWIMAQVision1.CreateCWIMAQImage();
              m_CWIMAQViewer1.Attach(m_imgViewer1);
              imaq1394SnapCW(Sid,m_imgViewer1); <--there is no "imaq1394SnapCW "function in VC++,why?
    Please help me!
    Thank you!

For people looking back at these old posts regarding
CWIMAQViewer - it was not made to be used in the C environments and is made
for VB.
Refer to the following locations for displaying images in C
environments:
Start»All Programs»National Instruments»Vision»Documentation
Start»All
Programs»National Instruments»Vision»Text Based Examples
Make
sure that you look at the examples and documentation that is in
reference to the C environments not the VB environments
Vince M
Applications Engineer

Help displaying an image using the canvas!!!!!!!!

Hey guys
I don't know whether I am not grasping some concepts well.I have been going mad trying to get the code working
Here is the code
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import java.io.*;
* @author Administrator
* @version
public class MyMIDlet extends javax.microedition.midlet.MIDlet implements CommandListener{
private Display display;
private MyCanvas canvas;
private Command exitcommand = new Command("Exit",Command.SCREEN,1);
private Image source;
public MyMIDlet() {
protected void startApp() throws MIDletStateChangeException{
if (display == null){
initMIDlet();
protected void pauseApp() {
protected void destroyApp(boolean unconditional)throws MIDletStateChangeException {
exitMIDlet();
public void commandAction(Command c, Displayable d) {
if (c == exitcommand){
exitMIDlet();
protected void initMIDlet() {
display = Display.getDisplay(this);
canvas = new MyCanvas(this);
System.err.println("Canvas instiated succesfully");
canvas.addCommand(exitcommand);
canvas.setCommandListener(this);
display.setCurrent(canvas);
public void exitMIDlet() {
notifyDestroyed();
import javax.microedition.lcdui.*;
import javax.microedition.midlet.*;
import java.io.*;
public class MyCanvas extends Canvas implements Runnable {
private MIDlet midlet;
private Image offscreen;
private Image currentimage;
private Graphics g;
//MID profile application
/** Creates a new instance of MyCanvas */
public MyCanvas(MIDlet midlet) {
this.midlet = midlet;
try{
currentimage = Image.createImage("/bird0.png");
}catch(IOException e){
System.err.println(e.getMessage());
if (currentimage!= null){
System.err.println("Image create successfully");
}else{
System.err.println("Image not created");
try{
Thread t = new Thread(this);
t.start();
}catch(Execption e){}
protected void paint(Graphics g){
Graphics saved = g;
int x = getWidth();
int y = getHeight();
g.setColor(255,255,255);
g.drawImage(currentimage,x,y,g.TOP|g.VCENTER);
public void run() {
repaint();
I know for a fact that the Canvas class 's paint method is called by the system and not the application. This poses a problem for me because I am not sure how to pass the image to the piant method, so that it can be painted.
When I run the program(using J2ME wtk04), this is the outcome.
Image created succesfully
Canvas instiatiated successfully
null
Here are my questions
1) when is the paint method precisely called by the system?after a reference to the canvas class is created?
2) is it wise to create the image when instiating the canvas class?( initially created the image using a separate thread)-when sould the image be created?
3)how to let the application know when to use the image when painting the display area?
I am just trying the logistics here. It is very crucial to me to understand the bolts of this as the core f my project fouses on the man machine interface development.(For the project, the cilent application is quering for the map using HTTP)
I use a png file of size 161 bytes. Is that too big for testing purposes.
I would all the help that I can get. thanks in advance

1) when is the paint method precisely called by the system?after a reference to the canvas class is created?
After the canvas is set as the current display, and after that, after the repaint() is called.
2) is it wise to create the image when instiating the canvas class?( initially created the image using a separate thread)-when sould the image be created?
It's better to create the image in the very begining of the program e.g. in the midlet initialization. You can call the created image as often as you like later on
3)how to let the application know when to use the image when painting the display area?
you have to tell it :))
you can use if-then, switch, or anything else
and you can use clipping too

Using an animated gif/other to display series of images within another image?

I design custom baseball cards for a hobby, and am wondering if I can use an animated GIF inset within a large photo to display a rotation of images.
It is easiest if you look at the "card"/image . . . within the circle, where there is a picture of Ruth holding some bats, I would like to add a series of several images that would rotate through (obviosuly the "card" would be for viewingonline rather than printing).
Is it possible to do? I am thinking an "animated gif" would be the easiest, but if there is some other way (video, etc.). I am open to that.
I just would like to know if the goal can be done, and if so, how to do it.
TIA!!!

That can be done with a gif. You just set up your bg image, then have a series of layers for your insert. Create a frame animation by opening it in Window>Timeline. Have all your insert layers except one turned off. Create a new frame, the turn on the next layer. Keep repeating creating a new frame and turning on a new layer. When you're done, you can set the time each frame displays. Save it using save for web using the gif option.

How to upload and display image using bsp application

hi
I just wants to know that
1- how to upload image from BSP page with attachment into sap server .?
2-how to display image in to BSP page(webpage).
thanks

Hello Gupta Prashant,
Just to upload and display an image, import image in MIME repository. Not only still images but also flash files can also be uploaded in the MIME repository. Once you import the image in it, use normal html code for image call;
<img src = "file.jpg/gif" width= height=>
Besides it, if your requirement is to store the image in the database and fetch it based on specified field-name, then you have to go for BLOBs i.e Binary Large Object, using this you can also store images, videos, pdfs, applications in the database.
MBLOB - Medium BLOBs store videos and pdfs,
LBLOB - Large BLOBs store movie files and applications.
You have got 2 ways to use it; some databases store BLOB objects into themselves and some store the path of the BLOB object maintained on the FTP server.
You can also implement it in ABAP;
read the following link and practice the tutorial;
[ Use of MIME Types|http://help.sap.com/saphelp_45b/helpdata/en/f1/b4a6c4df3911d18e080000e8a48612/content.htm]
also check this
[TYPES - LOB HANDLE|http://help.sap.com/abapdocu/en/ABAPTYPES_LOB_HANDLE.htm]
And looking at your question, in order to upload an image, you can make use of FILEUPLOAD tag provided by HTMLB.
Step 1: FILEUPLOAD provides a browse button to choose desired image file.
Step 2: Store that image in database using BLOBs.
Step 3: Retrieve the image using normal select query and display it on the screen.
Hope it helps you,
Zahack

How do I upload an image using as3 and display it without a server?

Is it possible to upload an image using as3 and flash player 9 and then display it in a movie clip without server side assistance?
thanks,
JB

Hi,
Check out the links..
I hope it will helps u.
http://labs.findsubstance.com/2008/04/03/as3-upload-encode-images/
http://flexscript.wordpress.com/2009/01/12/uploading-an-image-into-flash-without-server-si de-script-using-flash-player-10/
Saransoft

I need to create a image using some numeric values and i want to display values in image,

I need to create a image using some numeric values and i want to display values in image, Numeric values be enterd by text file, excel file or user input by dialog box,
this is the sample if image.
http://s17.postimg.org/5xvtzbztn/5_01_03_I.png
128 x 16 Pixels , Back ground Black, Numbers in Red, Should be same as above picture.
Because i have hundreds of images to create like this.
If any one can make a script for this it is very good.
Sorry about my English.
Thank you.

Have you checked out data driven graphics?
https://helpx.adobe.com/photoshop/using/creating-data-driven-graphics.html

How to display an image using MIDP on Palm?

How can I display an image using MIDP on Palm? The following code works on the Siemens SL45i, but not on Palm:
public class Test extends List
Image image = Image.createImage("/images/test.png");
append("item 1", image);

Have found the exact same problem when trying to display an image (other then the default (null)) in a list, on a Palm.
The image displays correctly on a form, but when set on an element in the list, it does not display. (mind you this is in both emulator mode and on the real device)
It does not seem to be related to size of the image.
The Sun documetation states, that you should not rely on it been displayed (obviously it's an implementation issue with the Palm, and other devices I have not tried)
But like to hear definitively from Sun though!

Image display - How do I display an image using an absolute path?

How do I display an image using an absolute path in a compiled WebHelp?
Our developers use RH8 map IDs within our in-house applications to display in a model window created using Telerik Rad Window.
Unfortunately images disappear from these model windows because RoboHelp removes absolute links to [inserted] images and changes them to relative in the compiled WebHelp.
How do we overcome this? Is there a solution in RH8?

I have tried again and changed the path in the topic HTML
from : ..\..\HelpTopics\Icon_Search.png
to : \HowDoI\Help_CMS\WebHelp\HelpTopics\Icon_Search.png
I am obviously unable to see it in RH8 as I have removed the relative link so it is "outside" of the project.
This time, on compilation, it has not stripped out the absolute links. The developer was working with me on this last week and we did have any issue in that they did not hold the absolute link. Most odd!
Checking the published help it appears to be working in the application, which is great.
So my apologies for raising the issue but it really did not work last week.

Using PHP to display semi-random images?

Hello,
I'm looking for help using PHP and MySQL to generate semi-random images on my web site. Here's what I'm trying to do: I have 60 images, but I only want to display 16 at a time (for examlpe http://artisdead.net/antelopegardens.php).
The way I imagine this is, the design has 16 image placeholders. I want Placeholder 1 (the first image) to randomally pull record ID 1, 2, or 3 from the SQL database, while Placeholder 2 pulls record ID 4-6, etc. It's important that one of the first 3 images displays first, while one of the second 3 images displays next, etc.
I've found various ways to randomize all the images, but I'm not understanding how to constrain the randomization the way I'm looking to. Any help would be greatly appreciated. Thanks in advance.

Alamo_Melt wrote:
The way I imagine this is, the design has 16 image placeholders. I want Placeholder 1 (the first image) to randomally pull record ID 1, 2, or 3 from the SQL database, while Placeholder 2 pulls record ID 4-6, etc. It's important that one of the first 3 images displays first, while one of the second 3 images displays next, etc.
Before offering a possible solution, I should point out that your plan has a minor flaw. If you display only 16 images, and want the random choice to come from incremental sets of three, the maximum number you can have in your set is 48. The final 12 images will never be selected. For 60 images, you need 20 placeholders. The alternative is to have a total set of 64 images, and make the random choice come from incremental sets of four images.
With that caveat, here's how I would do it. The primary keys of your records might not be consecutive, particularly if records are deleted and new ones added, so it might be a good idea to have a separate column with consecutive numbers from 1 to the the maximum. To select random numbers from incremental groups of three, use the following:
$id = array();
$min = 1;
$max = 3;
for ($i = 0; $i < 16; $i++) {
// generate random number from current set
$id[$i] = mt_rand($min, $max);
// increment the minimum and maximum numbers for the next set
$min += 3;
$max += 3;
// join the selected values as a comma-separated string
$vals = implode(',', $id);
$sql = "SELECT image FROM images WHERE id IN ($vals)";
// excecute the SQL query

HELP!!!!Display blob image using JSP

Hi,
I am trying to blob image using JSP but it did not display successfully.
Can someone help, please?
below are the codes snippet:
<td>
<img src="display_image.jsp?ID=<%=request.getParameter("ID") %>" width="115" border="0">
</td>
byte[] image_blob = details.getImageByteArray();
response.setContentType("image/jpeg");
//response.setContentType("image/gif");
//BEGINNING OF SECTION TO DISPLAY IMAGE
/*OutputStream fos = null;
fos = response.getOutputStream();
fos.write(image_blob, 0, image_blob.length);
fos.flush();
fos.close();*/
java.io.FileOutputStream fos1 = new java.io.FileOutputStream("C:\\"+id+".jpg");
fos1.write(image_blob);
fos1.close();
OutputStream o = response.getOutputStream();
System.out.println("o");
o.write(image_blob);
System.out.println(image_blob);
System.out.println("write image");

Use Java Image or BufferedImage instead of obscure byte array for image data.
Here's an example code for a JSP document:
<%
String wid = request.getParameter("percent");
String cost = request.getParameter("suchi");
response.reset(); //IMPORTANT !
response.setContentType("image/jpeg");
// for testing purpose
if (wid == null) wid = "58";
if (cost == null) cost = "3400";
float dleng = Float.parseFloat(wid) * 2.6f;
RenderedImage rimg = drawGraph(dleng);
OutputStream os = response.getOutputStream();
try{
ImageIO.write(rimg, "jpg", os);
catch(IOException e){
os.flush();
%>
<%!
public RenderedImage drawGraph(float barLength){
final int w = 800;
final int h = 18;
final int x = 0;
final int y = 0;
BufferedImage img = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
Graphics2D g2 = img.createGraphics();
Color c = new Color(Integer.parseInt("FF9999", 16));
g2.setColor(Color.yellow);
g2.fillRect(x, y, w, h);
g2.setColor(c);
g2.fillRect(x, y, (int)barLength, h);
g2.dispose();
return img;
%>

Display a grab image using subVI

Similar Messages

Maybe you are looking for