On Tue, Aug 28, 2007 at 01:14:51AM +0200, Laurent Pinchart wrote:
> There are two things to implement in Linux to get something similar. The
> first
> one is to implement manual focus into the driver. This shouldn't be difficult
> and I'll have a go at it. The second one is much more complex. You'll have to
> come up with a userspace image processing algorithm to compute focus values
> from the video. I have no experience with that.
I'll visit my brother today, who happens to have an WinXP machine
lying around. Perhaps the manual focus will stay in the same setting even
when disconnected, which would instantly solve my problem. If you
need some USB traces during manual focus control by the windows application,
just let me know (& tell me which tools to use, I've never done this before ;-)
For my application, manual focus control would be sufficient. But I'll
see whether there are some published approaches in the image processing
literature for autofocus which could be ported... the trick is
probably to get a fast "in-focus" estimate on each image and change
the focus in the right direction until it reaches a maximum value.
Best,
Alex
--
Dr. Alexander K. Seewald +43(664)1106886
Seewald Solutions
------------------------------------------------
Information wants to be free;
Information also wants to be expensive (S.Brant)
--------------- alex.seewald.at ----------------
_______________________________________________
Linux-uvc-devel mailing list
[email protected]
https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
