[Prev][Next][Index][Thread]
Re: Success/failure?
nice job guys.... i've got my quickcam taking pictures every minute..
check out http://rip.triadtech.com/~jchow/watch.gif
dave
Scott Laird wrote:
> In message <Pine.LNX.3.91.960102125912.136H-100000@hamjudo.hamjudo.com>, Paul H
> aas writes:
> >On Tue, 2 Jan 1996, Scott Laird wrote:
> >
> >It works for me. I had no problems with the documentation.
> >
> >I have a couple of image problems:
> >
> > 1) The first 6 pixels on the first scan line are usually very wrong. The
> >first 6 pixels on following scan lines are sometimes a little light.
>
> There's something odd with the first 8 pixels on each line for me --
> it looks like there's a faint line down the side. I'll try to fix it
> tonight, but I don't make any promises.
>
> >
> > 2) At 80x60 6 bpp, every 4th pixel is darker than its neighbors. Other
> >resolutions are fine, likewise 4bpp is fine.
> >
>
> I haven't noticed this, but I might have just not noticed. It the
> effect very pronounced? There are a number of timing issues, and I
> don't have a very good feel for when I need to put delays in the
> system. I guess I'll try adding a 100us pause before every I/O access
> and see if it fixes anything.
>
> >I'm guessing that 1) might be a timing problem or it might be in my camera.
> >I'm embarrassed to report that I'm still running Linux 1.1.59. Does anyone
> >else see similar problems?
>
> >My next project is to put the images on my web page. Has anyone bolted
> >the software together yet. I'm going to connect the camera to a couple
> >servos so I can do tilt and pan.
>
> Hmm, try something like this (untested). You might be better off with
> a cron job taking pictures instead of a picture-on-demand system.
> Also, remember that there's no locking done right now, and weird
> things will happen if two programs try to access the quickcam at once.
>
>
> -- cut and install as /cgi-bin/qcam --
> #!/bin/sh
>
> echo image/gif
> echo
>
> /usr/local/bin/qcam -x 320 -y 240 -B 6 | ppmtogif
> -- cut --
>
>
> Scott
> --
> Scott A. Laird | "But this goes to 18,446,744,073,709,551,615"
> scott@laird.com | - Nigel on his new 64-bit computer
>
--
David Chow
Georgia Institute of Technology, Atlanta Georgia, 30332
Internet:gt9351c@prism.gatech.edu, chow@cc.gatech.edu
Follow-Ups:
References: