1LINEFIND("1")                        HUGIN                       LINEFIND("1")
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NAME

6       linefind - Detect vertical features in images
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SYNOPSIS

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

12       linefind is a detector for vertical features in images. It tries to
13       find vertical lines using the same algorithm as Calibrate_lens_gui and
14       assigns vertical control points to them. The detection runs on the
15       source images, if the input images are rectilinear images. In the other
16       cases (e. g. fisheye images) the input images are reprojected to an
17       equirectangular projection and the detection works on the reprojected
18       images. It uses the roll value, saved in the pto project file, to
19       determine what is "top" and "bottom". So before running linefind check
20       that your roll values are correct (E. g. when using images straight
21       from the camera, use a roll value of 0 for landscape and a value of 90
22       or 270 for portrait images. If your camera has an orientation sensor,
23       Hugin can detect this information automatically and sets the roll value
24       accordingly when adding such images into Hugin.
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OPTIONS

27       -o|--output output.pto
28           Output Hugin PTO file. Default: '<filename>_line.pto'.
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30       -l|--lines num
31           The maximum number of lines added per image (default: 5) Attention:
32           Keep in mind that more vertical control points will dominate the
33           optimisation in favour of "normal" control points.
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35       -i|--image num
36           Image number(s) to process.  Normally linefind tries to find
37           vertical lines in all images of the project file. If you want to
38           limit the detection to some selected images, you can use this
39           parameter. Can be used multiple times.
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41       -h|--help
42           shows help
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AUTHORS

45       Thomas Modes, line detection code based on calibrate_lens by Tim Nugent
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49"Version: 2023.0.0"               2023-12-05                     LINEFIND("1")
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