1FULLA(1)                             HUGIN                            FULLA(1)
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NAME

6       fulla - Correct lens distortion, vignetting and chromatic aberration
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SYNOPSIS

9       fulla [options] inputfile(s)
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DESCRIPTION

12       Apply radial or flat-field vignetting correction as well as geometrical
13       radial distortion and transversal chromatic aberration correction.
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15       fulla can be used to batch correct a large number of files. Radial
16       distortion coefficients can be read from a lens database.
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18       Vignetting correction is done the same way as described in the nona
19       script file documentation, or from lens database.  Vignetting
20       correction can be done based on a flat-field or a radial scaling.
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22       Vignetting correction by flat-field division:
23                               I = I / c,    c = flat-field / mean(flat-field)
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25       Radial vignetting correction:
26                               I = I / c,    c = a + b*r^2 + c*r^4 + d*r^6
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28       The radial distortion correction is identical to the one implemented by
29       PanoTools:
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31       r_new = a*r^4 + b*r^3 + c*r^2 + d*r   [1]
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33       Since transversal chromatic aberrations (TCA) leads to differently
34       scaled objects in the red, green and blue channel, it can be corrected
35       by scaling the red and blue channel so that they match the green
36       channel. Most applications, like Photoshop or Picture Window Pro offer
37       TCA correction by linear scaling. This is equal to varying the d
38       parameter in equation [1].
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40       See http://hugin.sf.net/tutorials/tca for a method to determine these
41       parameters.
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OPTIONS

44       --green=db|a:b:c:d
45           Correct radial distortion coefficient for all channels, (a, b, c,
46           d) Specify 'db' for database lookup or the 4 coefficients a:b:c:d
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48       --blue=db|a:b:c:d
49           Correct radial distortion coefficients for blue channel, (a, b, c,
50           d). This is applied on top of the --green distortion coefficients,
51           use for TCA corr Specify 'db' for database lookup or the 4
52           coefficients a:b:c:d
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54       --red=db|a:b:c:d
55           Correct radial distortion coefficients for red channel, (a, b, c,
56           d). This is applied on top of the --green distortion coefficients,
57           use for TCA corr Specify 'db' for database lookup or the 4
58           coefficients a:b:c:d
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60       --camera-maker=Maker
61           Camera manufacturer, for database query
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63       --camera-model=Cam
64           Camera name, for database query
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66       --lensname=Lens
67           Lens name, for database query
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69               Specify --camera-maker and --camera-model for fixed lens
70               cameras or --lensname for interchangeable lenses.
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72       --focallength=50
73           Specify focal length in mm, for database query
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75       --aperature=3.5
76           Specify aperture for vignetting data database query
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78       --dont-rescale
79           Do not rescale the image to avoid black borders.
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81       --flatfield=filename
82           Vignetting correction by flatfield division I = I / c, c =
83           flatfield / mean(flatfield)
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85       --vignetting=db|a:b:c:d
86           Correct vignetting (by division) Specify db for database look up or
87           the the 4 coefficients a:b:c:d I = I / ( a + b*r^2 + c*r^4 + d*r^6)
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89       --linear
90           Do vignetting correction in linear color space
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92       --gamma=value
93           Gamma of input data.  Used for gamma correction before and after
94           flatfield correction
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96       threads=n
97           Number of threads that should be used
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99       -h|--help
100           Display help
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102       --output=name
103           Set output filename. If more than one image is given, the name will
104           be used as suffix.  (default suffix: _corr)
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106       --compression=value
107           Compression of the output files.  For jpeg output: 0-100 For tiff
108           output: PACKBITS, DEFLATE, LZW
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110       --offset=X:Y
111           Horizontal and vertical shift
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113       --verbose
114           Verbose
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AUTHORS

117       Written by Pablo d'Angelo. Also contains contributions from Douglas
118       Wilkins, Ippei Ukai, Ed Halley, Bruno Postle, Gerry Patterson, Brent
119       Townshend and Thomas Modes.
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123"Version: 2021.0.0"               2022-12-14                          FULLA(1)
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