Is it possible to display streaming video on a front panel?

I've created a motion-control software interface for a laser-processing station. It would be helpful if, when calibrating the origin of the stages, streaming video could be shown on the front panel from a camera on the setup. Can LabVIEW support this?

what is the format of the streaming video, you can use an activeX control like media player to do this most likely.
Paul
Paul Falkenstein
Coleman Technologies Inc.
CLA, CPI, AIA-Vision
Labview 4.0- 2013, RT, Vision, FPGA

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Display a color image in front panel.

Hi there,
How do I display a color image in front panel? Which graphic indicator should be used to display a color image? I do not want to use Imaq WindDraw.
Thanks in advance.
Hugh

Try this "draw flatten jpg to pic ctrl.vi"
Ian F
Since LabVIEW 5.1... 7.1.1... 2009, 2010
依恩与LabVIEW
LVVILIB.blogspot.com
Attachments:
draw_flatten_jpg_to_pic_ctrl.vi ‏35 KB

How can I simultaneously acquire and display an image on the front panel using a PCI-1424

Dear friends;
I want to use PCI-1424 , and labview 5.1 to capture the image, But I can not find some functions in labview to capture, display and save the image.Can you be kind to share some examples or provide some information.
Another question is how I CAN display the image in the front panel.
thanks so much

Hello yangshang,
Thank you for contacting National Instruments! To acquire images from the 1424 you will need NI IMAQ 2.5.1 or later. This can be found HERE on our drivers download page. One thing to note is that in LabVIEW 5 we only had the ability to view an IMAQ image as a pop up window. This VI is called "IMAQ Windraw". This will pop up a separate window that will display your picture. If you need to view the picture on the front panel you can try saving the image as a file (BMP, JPG, etc) then use the LabVIEW Graphics and Sound VI's to Read a picture file in and then wire the picture to a picture control on the front panel. Let me know if you have anymore questions. Good Luck.
Regards,
Mark T
Applications Engineer | National Instruments

How to display streaming video in a GUI window

Hello,
I was wondering what the process would be to stream video from a webcam or other similar type device into a Java GUI built in Netbeans. I have had success with this using Matlab and its built in mex compiler but need greater functionality than a Matlab GUI provides so I would like to move this over to Java. I have limited Java experience and realize this may take time, but would like to know what steps are needed.
Thank you
Dave

dreed29 wrote:
..I was wondering what the process would be to stream video from a webcam or other similar type device into a Java GUI.. Search on JMF.
..built in Netbeans. ..As a general rule of thumb, if someone feels the need to name their IDE when asking a question, it is a good sign they are better off avoiding an IDE at this stage of their learning.

Displaying video on the front panel

Hello,
I want to be able to display a live stream video on my labView front panel.
I was wondering if there is a way to do this? Whenever I google it,
it just get videos about LabVIEW, otherwise I would try and I figure this
out myself,
It doesn't have to be anything fancy, I just want the video displayed like you
can display a picture.

Taki1999 wrote:
Look at the .NET and ActiveX Control Palette.
There is Windows Media Player Control or a Web Browser control that should work for video and streaming.
Active X media player
Jeff

How do I programmatically display jpeg files on the front panel

Hi,
I would like to be able to programmatically display various jpeg images on the front panel of a VI. I would mostly like to be able to display one image at a time and have the ability to programmatically change the image to different ones under program control. I found a picture indicator but not sure how to use if or if this is the best way. Thanks for any help.
Dave Adams

Yes, you can use a picture indicator.
The attached simple codelet shows how to display a jpeg image on it (Make sure the image indicator is big enough).
Let us know if you need help with the rest of the coding.
LabVIEW Champion . Do more with less code and in less time .
Attachments:
DrawJpeg.gif ‏2 KB

How to display PSA screen capture on Front Panel

Any one know how to display screen capture of PSA series specturm analyzer on front panel. I can save the JPEG file in the C drive, but I can't display on the front pannel. Please see my labview code.
Solved!
Go to Solution.
Attachments:
Capture screen E4446A.vi ‏21 KB
reading and writing binary number.vi ‏22 KB
yumg.jpg ‏20 KB

Do you actually need to save the front panel image? Or do you want to save a graph of the signal (spectrum) that you acquired? If the latter will do the trick, you can simply read the waveform over GPIB (or whichever means you control the analyzer) into an array that is plotted to a waveform graph in LabVIEW. You then save the image of the waveform graph as an image.
Since you have all the data, you can even save the data which can be viewed later (and not only by LabVIEW).

How can I simultaneously acquire and display an image on the front panel using a PCI-1408

I have to acquire and display an image directely in the front panel of a *.vi using a PCI-1408. i have to know all informmations about this image because I want to create a calibration system.

Hi Paola,
if you own IMAQ Vision you can just have a look at the examples that comes with your board or you can look at: http://zone.ni.com/devzone/explprog.nsf/6c163603265406328625682a006ed37d/2abaefe05789961686256866007c0d22?OpenDocument.
Without IMAQ Vision look at:
http://zone.ni.com/devzone/explprog.nsf/6c163603265406328625682a006ed37d/22474456534202b086256aff005fc4f3
(or search at ni.com for "IMAQ Display without IMAQ Vison)
Please mail me if you need further help,
Michael

How can i display 7 segment dispay on front panel using any kind of input

Hi,
I need help..!! I need to dispay the numeric data in 7 segment format. Is it possible to do in labview?

you need to display the number onto a 7 segment display?
i think you would need sometype of microcontroller board like the AVR or the aurdino. and use the visa usb port to display out into the 7 segment display.
i am new to this too. but that's what i would do.
i hope someone with more expertise can give better advice.
Arduino and 7 Segment LED
7 Segment LED
The
seven segment display is a pretty simple device. Its actually just 7
LEDs (8 really including the decimal point) arranged so different
combinations can be used to make numerical digits. This tutorial will
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Message Edited by krispiekream on 07-23-2009 11:48 AM
Best regards,
Krispiekream

How to display conditional things on the front panel ??

Hello,
What I am trying to do is this: The user will select some information from a combo box, and depending upon twhat he has selected I want to display different things based on his selection.
Any help will be appreciated.
Thanks,
Bira_pxi

You can programmatically change the visibility of any object using property nodes with the "visible?" property.
If the groups of elements are similarly arranged, use a tab indicator (place tab control...change to indicator) and place each group of FP elements on it's own tab. Now hide the tabs and select the active tab programmatically by writing the desired state to the tab indicator.
Another option is the use of subpanels.
Message Edited by altenbach on 08-16-2007 04:11 PM
LabVIEW Champion . Do more with less code and in less time .

Time display on x-axis for front panel instead of data points

What do I need to change or add in my block diagram so that on the waveform graph the time will be on the x-axis instead of the data points. I am running this VI on a pda for some testing and I would rather get the time on the horizontal axis. Im also using an NI USB-6008, windows xp and Labview 8.2
Thanks
Attachments:
blockdiagram.JPG ‏158 KB
frontpanel.JPG ‏94 KB

And since you are sending it an array of doubles rather than an array of waveforms, there is no timin information associated with it. It will assume 1 sample per second. If your acquisition is faster than that, you will need to set the dT of the graph or the scaling multiplier factor of the X scale of that graph.
(PS, it is always a good programming practice to show the labels for all the terminals on your block diagram and assign the terminal a name.)
Message Edited by Ravens Fan on 09-15-2009 09:28 PM

Displaying mutiple pictures onto a front panel

Hi ,
Basically what iam trying to do is have mutiple images on the front panel.
The problem that iam having is that when i load an image onto the front panel it overwrites the other image. What i mean by that is , that instead of having two images on the front , each time i run the code it loads the same image twice onto the front panel.I tryed using a imaq dispose etc but it didnt work. Iam attaching a file that is similiar to the one that iam working on.
(incase i didnt explain it very well on my front panel when i run the vi i what to be able to load up two different images onto the front panel like below but try to load a second image it also replaces image 1.)
image 1
image 2
What actually happening
image 1
Image2
Thanks for help. Iam badly stuck.
(labview 7.1 and vision assisant.)
Attachments:
test5.vi ‏116 KB

Hi jihn,
you connect on both "IMAQ create" vi´s the same name. I think if you change one name it should work.
Mike

Waveform graph displayed vertically on front panel

Hello everybody
I would like to know if it is possible to display waveform graphs vertically on front panel and if enventually could someone tell me how to do it.
Thanks vey much for help.

You'll have to use an XY graph, and do some programming. You could use the attached vi that simulates a vertical chart as source of inspiration.
Chilly Charly (aka CC)
E-List Master - Kudos glutton - Press the yellow button on the left...
Attachments:
YChart.vi ‏34 KB

'tail' streaming video

Hi,
I use conky to 'tail' the process status and the logs on my desktop for easy reference. Is it also possible to 'tail' streaming video on the desktop?
What I'd like to figure out is to have a small video continuously playing on the desktop, without interfering with the normal window manager functionality (in my case fluxbox).
Is this somehow possible?
Last edited by anadyr (2012-01-24 20:16:55)

I re-open this post, because I want to have streaming video on the desktop, and so far I only managed to put normal videos on the desktop.
For a livestream, for instance the al-Jazeera livestream, I use the following command (and it works properly):
rtmpdump -v -r "rtmp://aljazeeraflashlivefs.fplive.net/aljazeeraflashlive-live/aljazeera_eng_med" | mplayer -
Combined with the shantz-xwinwrap, I try to put the livestream on the desktop:
xwinwrap -g 640x360+100+100 -ov -ni -s -st -sp -b -nf -- rtmpdump -v -r "rtmp://aljazeeraflashlivefs.fplive.net/aljazeeraflashlive-live/aljazeera_eng_med" | mplayer -
The result isn't what is expected, as you can see on the screenshot below. Basically xwinwrap creates the section of the screen to display the stream, but it won't display the stream. Instead, the stream appears somewhere else, in another mplayer window.
screenshot
I also tried to reverse the command, but that had the same effect:
rtmpdump -v -r "rtmp://aljazeeraflashlivefs.fplive.net/aljazeeraflashlive-live/aljazeera_eng_med" | xwinwrap -g 640x360+100+100 -ov -ni -s -st -sp -b -nf -- mplayer -
Any ideas how to fix this?
Last edited by anadyr (2012-01-24 20:16:23)

Dashboard widget with streaming video breaks after upgrade to Mountain Lion

Hi. I recently upgraded from Snow Leopard to Mountain Lion. Under SL, I had an OS X widget that was a web clipping of a streaming mpeg image being produced by a Linksys/Cisco WVC54GCA web camera. When I brought up the dashboard, the OS would start streaming the data from the mpeg filename, which looks like "hostname.com/img/video.mjpeg".
After upgrading to Mountain Lion, I noted that the widget never fully loads, indefinitely displaying a "Loading Clip..." mesasge. After deleting and re-adding, I can still get as far as adding the web clipping to the dashboard at the right dimensions, but there's no content.
Unfortunately the camera unit doesn't provide for the display of HTTP access logs, so I can't see if there's an issue there, but my understanding is that if I can display the image in a Safari browser, it should work just fine in Dashboard too. (I did make sure that, where needed, the username/password for accessing the video are included in the URL.)
I did sniff the network traffic between my system and the camera host, and show that video traffic starts flowing between the two as soon as the widget is brought up. So, it's almost like the widget doesn't know when to stop "loading" and start "displaying," perhaps because the HTTP request is never truly "done."
Can anyone speculate if something may have changed in Mountain Lion affecting the ability of web clipping widgets to display streaming video?
Thanks,
Chris

Hi James
I have exactly the same problem with the same "Loading clip" then blank. I have been trying a lot of stuff to get this working, but haven't had the chance of sniffing the network traffic as you have done. By reading what you said about the traffic seems to be flowing without the picure being displayed makes me even more puzzled by this. I never had a streaming video while I were using Snow Leopard, but I had a still-image, as I also do now in Mountain Lion. I recently began to research for a way to display the video.cgi MIME image that my camera produces, and I've also concluded that this should be an easy task for the dashboard web clip function; the video does display in safari after all.
I suspect that our cameras uses the same built in webserver solution written by a "Steven Wu". Cheap webcameras frequently uses his script with MJPEG (stream of JPEG pictures) to avoid the expensive licenses of using other video codecs.
I read this a bit down at this site: http://channel9.msdn.com/coding4fun/articles/Everyone-Loves-Babies-Webcams-and-M otion-Detection
Have you come any closer in your research?
I have started to think that maybe I have to write a dashboard widget on my own to accomplish this.
trelements

Is it possible to display streaming video on a front panel?

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