LINEFIND(1)                          HUGIN                         LINEFIND(1)

       linefind - Detect vertical features in images

       linefind [options] -o output.pto input.pto

       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.

       -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.

           shows help

       Thomas Modes, line detection code based on calibrate_lens by Tim Nugent

"Version: 2019.2.0"               2020-05-12                       LINEFIND(1)