LSD code documentation
This is an implementation of the Line Segment Detector described in the paper:
"LSD: A Fast Line Segment Detector with a False Detection Control" by Rafael Grompone von Gioi, Jeremie Jakubowicz, Jean-Michel Morel, and Gregory Randall, IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 32, no. 4, pp. 722-732, April, 2010.
and in more details in the CMLA Technical Report:
"LSD: A Line Segment Detector, Technical Report", by Rafael Grompone von Gioi, Jeremie Jakubowicz, Jean-Michel Morel, Gregory Randall, CMLA, ENS Cachan, 2010.
The version implemented here includes some further improvements described in the following publication, of which this code is part:
"LSD: a Line Segment Detector" by Rafael Grompone von Gioi, Jeremie Jakubowicz, Jean-Michel Morel, and Gregory Randall, Image Processing On Line, 2012. DOI:10.5201/ipol.2012.gjmr-lsd http://dx.doi.org/10.5201/ipol.2012.gjmr-lsd
The module's main function is lsd().
The source code is contained in two files: lsd.h and lsd.c.
HISTORY:
- version 1.6 - nov 2011:
- changes in the interface,
- max_grad parameter removed,
- the factor 11 was added to the number of test to consider the different precision values tested,
- a minor bug corrected in the gradient sorting code,
- the algorithm now also returns p and log_nfa for each detection,
- a minor bug was corrected in the image scaling,
- the angle comparison in "isaligned" changed from < to <=,
- "eps" variable renamed "log_eps",
- "lsd_scale_region" interface was added,
- minor changes to comments.
- version 1.5 - dec 2010: Changes in 'refine', -W option added, and more comments added.
- version 1.4 - jul 2010: lsd_scale interface added and doxygen doc.
- version 1.3 - feb 2010: Multiple bug correction and improved code.
- version 1.2 - dec 2009: First full Ansi C Language version.
- version 1.1 - sep 2009: Systematic subsampling to scale 0.8 and correction to partially handle "angle problem".
- version 1.0 - jan 2009: First complete Megawave2 and Ansi C Language version.
- Author:
- rafael grompone von gioi <grompone@gmail.com>
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