65 lines
1.8 KiB
Groff
65 lines
1.8 KiB
Groff
.Dd Feburary 29, 1996
|
|
.Dt QCAMCONTROL 1
|
|
.Os FreeBSD
|
|
.Sh NAME
|
|
.Nm qcamcontrol
|
|
.Nd Connectix QuickCam control utility
|
|
.Sh SYNOPSIS
|
|
.Nm qcamcontrol
|
|
.Op Fl b Ar brightness
|
|
.Op Fl c Ar contrast
|
|
.Op Fl d Ar depth
|
|
.Op Fl p Ar device
|
|
.Op Fl w Ar whitebalance
|
|
.Op Fl x Ar xsize
|
|
.Op Fl y Ar ysize
|
|
.Op Fl z Ar zoom
|
|
.Sh DESCRIPTION
|
|
.Nm qcamcontrol
|
|
is a program to demonstrate control over the Connectix QuickCam(TM)
|
|
parallel port camera and to take a single frame picture.
|
|
.Pp
|
|
If the device not specified, "/dev/qcam0" is assumed.
|
|
If no command is given, then
|
|
.Nm qcamcontrol
|
|
will use its defaults to grab a single frame from the camera. The control
|
|
program will output a portable pixmap (ppm) file to stdout.
|
|
.Pp
|
|
The following options are available:
|
|
.Bl -tag -width "flag whitebalance"
|
|
.It Fl b Ar brightness
|
|
control the brightness of the picture (0..255)
|
|
.It Fl c Ar contrast
|
|
control the contrast of the picture (0..255)
|
|
.It Fl d Ar depth
|
|
16 or 64 shades of gray (specified as 4 or 6 bits per pixel)
|
|
.It Fl p Ar device
|
|
quickcam device (port) (default is /dev/qcam0)
|
|
.It Fl w Ar whitebalance
|
|
amount of white in the picture (0..255)
|
|
.It Fl x Ar xsize
|
|
width of image (320 or less)
|
|
.It Fl y Ar ysize
|
|
height of image (240 or less)
|
|
.It Fl z Ar zoom
|
|
zoom in (1, 1.5x, or 2x)
|
|
.El
|
|
.Sh BUGS
|
|
.Nm qcamcontrol
|
|
does not enforce a proper aspect ratio for x y sizes.
|
|
In practice, standard picture sizes are 320x240 and 180x160 and all smaller
|
|
sizes that maintain a similar aspect ratio.
|
|
Also, the camera is notoriously finicky until you get just the right
|
|
combination of white-balance, contrast, and brightness. Improper values
|
|
will return all-black or all-white pictures.
|
|
.Sh FILES
|
|
.Bl -tag -width /dev/qcam0 -compact
|
|
.It Pa /dev/qcam0
|
|
.El
|
|
.Sh AUTHOR
|
|
Paul Traina
|
|
.Sh HISTORY
|
|
The
|
|
.Nm qcamcontrol
|
|
command appeared in FreeBSD 2.1.1
|