08-31-2010 09:23 AM
Hello everyone, I have an application that displays video from a webcam, and I know how to do to capture an image to an event x.
Thank you.
08-31-2010 11:24 AM
Hi Xontrol,
I am trying to understand your post.
You have a webcam and you know how to capture an image. Are you telling people this so that you can offer help, or was it a typo and you are asking help on how to capture an image?
R
09-01-2010 04:45 PM
Hello. It's a bit strange my question, I will explain in more detail the problem.
I am capturing video from a webcam and I want at any given time one frame is stored in memory, at what time?. I'm thinking that for example when changing a button or variable value is made the catch (catch the frame). Because I want to do this?. It happens that the video capture is not stable even though the scene is static most of the time.
I discarded the snapshot capture rate by the slow cooling of the webcam (it generates black image).
I hope I can help.
Thank you.
09-02-2010 07:44 AM
Have a look at the following threads, which you can search by using keywords such as: capture image using webcam (you can try other similar searches)
http://forums.ni.com/t5/LabVIEW/multiple-USB-cameras-in-Labview/m-p/841648/highlight/true#M382013
Here is what Adnan mentions in this thread:http://forums.ni.com/t5/LabVIEW/USB-Webcam-Use/m-p/867579
"You just need this driver: NI-IMAQ for USB Cameras which is available for free and, although, it comes with documentation, it is not officially supported by NI.
There is a Vision Assistant express VI in the Vision Express palette in LabVIEW. Otherwise, if you open the NI Vision Assistant application in Windows, you can create a LabVIEW VI by navigating to Tools -> Create LabVIEW VI."
This one might be more interesting as it discusses capturing from webcam using avicap32.dll:
http://forums.ni.com/t5/LabVIEW/Capture-from-Webcam-using-avicap32-dll/m-p/547476
There are many more useful threads. Try using the Search feature of the forum.
Here's a link to more results:
http://forums.ni.com/t5/forums/searchpage/tab/message?q=capture+image+from+webcam#message-list