1FULLA(1) HUGIN FULLA(1)
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6 fulla - Correct lens distortion, vignetting and chromatic aberration
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9 fulla [options] inputfile(s)
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12 Apply radial or flat-field vignetting correction as well as geometrical
13 radial distortion and transversal chromatic aberration correction.
14 fulla can be used to batch correct a large number of files. Radial
16 distortion coefficients can be read from a lens database.
17 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.
21 Vignetting correction by flat-field division:
23 I = I / c, c = flat-field / mean(flat-field)
24 Radial vignetting correction:
26 I = I / c, c = a + b*r^2 + c*r^4 + d*r^6
27 The radial distortion correction is identical to the one implemented by
29 PanoTools:
30 r_new = a*r^4 + b*r^3 + c*r^2 + d*r [1]
32 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].
39 See http://hugin.sf.net/tutorials/tca for a method to determine these
41 parameters.
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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
47 --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
53 --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
59 --camera-maker=Maker
61 Camera manufacturer, for database query
62 --camera-model=Cam
64 Camera name, for database query
65 --lensname=Lens
67 Lens name, for database query
68 Specify --camera-maker and --camera-model for fixed lens
70 cameras or --lensname for interchangeable lenses.
71 --focallength=50
73 Specify focal length in mm, for database query
74 --aperature=3.5
76 Specify aperture for vignetting data database query
77 --dont-rescale
79 Do not rescale the image to avoid black borders.
80 --flatfield=filename
82 Vignetting correction by flatfield division I = I / c, c =
83 flatfield / mean(flatfield)
84 --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)
88 --linear
90 Do vignetting correction in linear color space
91 --gamma=value
93 Gamma of input data. Used for gamma correction before and after
94 flatfield correction
95 threads=n
97 Number of threads that should be used
98 -h|--help
100 Display help
101 --output=name
103 Set output filename. If more than one image is given, the name will
104 be used as suffix. (default suffix: _corr)
105 --compression=value
107 Compression of the output files. For jpeg output: 0-100 For tiff
108 output: PACKBITS, DEFLATE, LZW
109 --offset=X:Y
111 Horizontal and vertical shift
112 --verbose
114 Verbose
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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.
120"Version: 2018.0.0" 2014-05-15 FULLA(1)