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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. fisheye images) the input images are reprojected to an
   equirectangular projection 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 "bottom". 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
       optimisation 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 detection 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: 2016.2.0"               2016-09-11                       LINEFIND(1)



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