Use digital camera as a webcam?
Use digital camera as a webcam?
Is it possible to use a standard digital camera as a webcam? Possible with some cameras, but not others? How can I tell?
I would like to be able to capture still images directly with GdTwain, similar to what can be done with just about any web cam, but with higher quality.
What do I need to be able to do that?
I would like to be able to capture still images directly with GdTwain, similar to what can be done with just about any web cam, but with higher quality.
What do I need to be able to do that?
Re:
Paul wrote:A webcam would be fine, but they take lousy pictures.
As far as I can tell, no digital camera these days comes with a twain driver.
Unless you have a better suggestion, I'll just try to get whichever webcam can take the least crappy photos.
Hi,
I do have a TWAIN capable digital camera, and that is the reason I come to this forum. Mightex system offers several industry grade digital cameras at very reasonable price, with TWAIN driver (at least for the model I have).
I tried the TWAIN ActiveX control today with the VB example code, and found it took quite long time to capture a single image, no matter it is high or very low (32X32) resolution. My application requires me to get image at high frame rate (30 per second at low resolution). I wonder if it is possible at all to achieve the frame rate with the TWAIN ActiveX?
Any help would be greatly appreciated!
Regards,
Yi
Re: Use digital camera as a webcam?
Hi,
The most efficient way to obtain real time video with low CPU usage without using the build-in camera preview interface is to use the Direct Show API which are for me the best way to manage real time video from windows applications.
If you are programming in .NET you can check this project: http://directshownet.sourceforge.net/index.html
Best regards,
Loïc Carrère
The most efficient way to obtain real time video with low CPU usage without using the build-in camera preview interface is to use the Direct Show API which are for me the best way to manage real time video from windows applications.
If you are programming in .NET you can check this project: http://directshownet.sourceforge.net/index.html
Best regards,
Loïc Carrère
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- Posts: 3
- Joined: Wed Oct 21, 2020 2:31 pm
Re: Use digital camera as a webcam?
Hi,
Is this required Twain driver for Webcam? Webcam is available but the webcam source is not loading in GdPictureImaging.TwainSelectSource(Handle). Please kindly do the needful. Thanks.
Is this required Twain driver for Webcam? Webcam is available but the webcam source is not loading in GdPictureImaging.TwainSelectSource(Handle). Please kindly do the needful. Thanks.
Re: Use digital camera as a webcam?
Well, the thread being from 2008, I guess some things have changed. To begin with, most people have laptops with integrated webcams... But for the record, it'd be interesting to know whether it's feasible with 2020 hardware, it can be useful for people with desktops computers, for example.
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