NAME
qcam, xqcam - get pictures from B&W Connectix QuickCam(tm)
SYNOPSIS
sqcam [ -Bbpp ] [ -bbrightness ] [ -ccontrast ] [ -sscale ] [ -h ]
DESCRIPTION
sqcam is a program that displays the output of a QuickCam on a system
using svgalib.
OPTIONS
-sscale
scale can be 1, 2, or 4. It specifies what fraction of the
QuickCam data should be discarded. scale of 1 indicates that
all the data should be sent. scale of 2 indicates that half of
the pixels on each line and half of the lines should be
discarded, resulting in 1/4 as much data being transferred.
scale of 4 likewise means a fourfold shrinking in each
direction.
-Bbpp Bits per pixel. Valid values are 4 (giving sixteen shades of
gray) and 6 (giving 64 shades of gray).
-bbrightness
Exposure time. Useful values are 1-254, with low numbers
indicating short exposures (for use in bright light) and high
numbers indicating long exposures (dim light). brightness of
255 puts the Cam in "bulb mode", which is not useful with qcam
and xqcam.
-ccontrast
contrast is normally set at 104. Low numbers indicate low
contrast. Valid values are 0-255.
-h Print usage information.
FILES
/etc/qcam.conf Configuration file
SEE ALSO
The QuickCam Third Party Developers web page at
http://www.crynwr.com/qcpc.
BUGS
Autodetection is very brittle.
The new Color QuickCam is not handled with this software, although
there are Color Cam drivers available from the web site.
The wide-angle lens of the QuickCam gives an ugly barrel distortion.
Michael Herf has written warp(1) to fix this, but since warp(1) doesn’t
know what part of the CCD is in the image, it only works on images
whose center is the center of the CCD.
AUTHORS
Scott Laird (original code), Brian Scearce (bidirectional and dark
current modifications), xqcam window scaling, edge detection), Ed
Orcutt (autoexposure modifications), Dave Plonka (locking code).
Qcam 0.8 QCAM(1)