FreeBSD Manual Pages
LINEFIND("1") HUGIN LINEFIND("1")
NAME
linefind - Detect vertical features in images
SYNOPSIS
linefind [options] -o output.pto input.pto
DESCRIPTION
linefind is a detector for vertical features in images. It tries to find
vertical lines using the same algorithm as Calibrate_lens_gui and assigns
vertical control points to them. The detection runs on the source images,
if the input images are rectilinear images. In the other cases (e. g. fish-
eye images) the input images are reprojected to an equirectangular projec-
tion and the detection works on the reprojected images. It uses the roll
value, saved in the pto project file, to determine what is "top" and "bot-
tom". So before running linefind check that your roll values are correct
(E. g. when using images straight from the camera, use a roll value of 0
for landscape and a value of 90 or 270 for portrait images. If your camera
has an orientation sensor, Hugin can detect this information automatically
and sets the roll value accordingly when adding such images into Hugin.
OPTIONS
-o|--output output.pto
Output Hugin PTO file. Default: '<filename>_line.pto'.
-l|--lines num
The maximum number of lines added per image (default: 5) Attention:
Keep in mind that more vertical control points will dominate the opti-
misation in favour of "normal" control points.
-i|--image num
Image number(s) to process. Normally linefind tries to find vertical
lines in all images of the project file. If you want to limit the de-
tection to some selected images, you can use this parameter. Can be
used multiple times.
-h|--help
shows help
AUTHORS
Thomas Modes, line detection code based on calibrate_lens by Tim Nugent
Version: 2025.0.1" 2011-09-19 LINEFIND("1")
NAME | SYNOPSIS | DESCRIPTION | OPTIONS | AUTHORS
Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=linefind&sektion=1&manpath=FreeBSD+Ports+15.1.quarterly>
