Driver for USB Web-camera?

[James Meyer]

I'd like to use a cheap web camera as an input device to Labview so that
I can play with the image processing features.

Does anyone have a driver for something like that? I've looked at the
NI web site and I haven't found anything for USB. Lots of firewire, IEEE 1394,
but no USB.

Jim

[koller]

Hi James,

You need the LVVFW.llb

Try this link ftp://ftp.pica.army.mil/pub/labview/vi/lv4/


Klaus


"James Meyer" schrieb im Newsbeitrag
news:j37m1tsn12kq07pn7p4cbvg9tkvn4r2aoe@4ax.com...
>
> I'd like to use a cheap web camera as an input device to Labview so that
> I can play with the image processing features.
>
> Does anyone have a driver for something like that? I've looked at the
> NI web site and I haven't found anything for USB. Lots of firewire, IEEE
1394,
> but no USB.
>
> Jim
>

[wiebe@CARYA]

First, if your using Windows NT, it will be very hard to get USB to work.

What we've done to get an image in LabVIEW, is this. We've made the PC a
webserver. We've used third party software to build a webpage with the
"webcam". We've used ActiveX to show the webpage in LabVIEW.

Another way is: Use third party software to constantly update a .jpg. In
LabVIEW, check if the jpg is modified, load it, and display it. You'll get
some heavy 'flickering' this way.

I've look at a way to use window API's to capture the image, but it isn't as
easy as it sounds.

Regards,

Wiebe Walstra.

--
AIR technical Automation
www.air.nl
"James Meyer" wrote in message
news:j37m1tsn12kq07pn7p4cbvg9tkvn4r2aoe@4ax.com...

I'd like to use a cheap web camera as
an input device to Labview so that
I can play with the image processing features.

Does anyone have a driver for something like that? I've looked at the
NI web site and I haven't found anything for USB. Lots of firewire, IEEE
1394,
but no USB.

Jim

[doobs]

That's a joke, right? Very hard? Other that the very specific USB drivers
that Iomega provides with their USB zip drives for WinNT, there are no drivers
for USB for WinNT. There was some software developer down in India that
allegedly had USB drivers for NT and like a fool I tried to use them. Zoowie,
I get to reformat my hard drive. Complete and total system disablement (?)

If you know of any USB driver for WinNT let us all know. I for one have a
large financial and personnel commitment to NT and don't have any plans of
switching to Windows 2000 any time soon.

On Fri, 24 Nov 2000 12:05:53 +0100, "AIR Tech. Autom." wrote:

>First, if your using Windows NT, it will be very hard to get USB to work.
>
>What we've done to get an image
in LabVIEW, is this. We've made the PC a
>webserver. We've used third party software to build a webpage with the
>"webcam". We've used ActiveX to show the webpage in LabVIEW.
>
>Another way is: Use third party software to constantly update a .jpg. In
>LabVIEW, check if the jpg is modified, load it, and display it. You'll get
>some heavy 'flickering' this way.
>
>I've look at a way to use window API's to capture the image, but it isn't as
>easy as it sounds.
>
>Regards,
>
>Wiebe Walstra.

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[gmiles@inventeering.com]

INVENTeering.com has a USB Camera Driver and Examples for LabVIEW

[mhaag]

Hello,

I wanted to update this post for those users who may be looking for a solution on using USB cameras with LabVIEW or Vision Assistant. Recently NI-IMAQ for USB Cameras was released as an example program on National Instruments' Developer Exchange (see link below). NI-IMAQ for USB Cameras is a free software driver for acquiring images from any DirectShow imaging device into LabVIEW. These devices include USB cameras, webcams, microscopes, scanners, and many consumer-grade imaging products. With the driver, users can configure their device, and acquire images into LabVIEW.

NI-IMAQ for USB Cameras [link removed; driver no longer available]

Note: While NI-IMAQ for USB Cameras comes with complete documentation, it is not supported by National Instruments' Applications Engineers. Any support questions should be directed to other users through the Discussion Forums.


Regards,
Michael
Applications Engineer
National Instruments