1VIG_OPTIMIZE(1)                      HUGIN                     VIG_OPTIMIZE(1)
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NAME

6       vig_optimize - Optimise photometric parameters
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SYNOPSIS

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

12       Photometric calculation can be performed on the command-line with the
13       vig_optimize tool. This functionally is configured via 'v' variable
14       lines in the .pto project file in a similar way to the autooptimiser
15       tool:
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17       The camera response curve is simplified using the EMoR sensor model
18       which reduces the variation to five numbers, these are the Ra, Rb, Rc,
19       Rd & Re image (i) parameters (the default values of 0.0 are equivalent
20       to an 'average' generic sensor).
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22       The vignetting model is represented by a polynomial with four
23       parameters: Va (this is always 1.0 and doesn't need to be optimised)
24       and Vb, Vc & Vd (which default to 0.0 - equivalent to no vignetting).
25       The vignetting centre can also be different from the geometrical
26       centre, this is specified by Vx & Vy (both default to 0.0).
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28       Exposure (EV) is represented by a single value Ev (defaults 0.0,
29       equivalent to no-change).
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31       The white balance is represented by multipliers for the red and blue
32       channels Er and Eb (the defaults of 1.0 are equivalent to no-change).
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34       A typical 'v' variable line configuration would look like this, i.e.
35       optimise camera response curve and vignetting for image 0 and exposure
36       for images 1, 2, 3 and 4:
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38         v Ra0 Rb0 Rc0 Rd0 Re0 Vb0 Vc0 Vd0
39         v Ev1 Ev2 Ev3 Ev4
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41       (vignetting centre and white balance are left unchanged)
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OPTIONS

44       General options:
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46       -o file
47           Write results to output project
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49       -v  Verbose, print progress messages
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51       -p n
52           Number of points to extract
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54       -r  Extract random point (faster, but less accurate)
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56       -s level
57           Work on downscaled images, every step halves width and height
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59       -h  Display help summary.
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61       Expert and debugging options:
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63       -i file
64           Read corresponding points from file
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66       -w file
67           Dump corresponding points to file
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AUTHORS

70       Written by Pablo d'Angelo. Also contains contributions from Douglas
71       Wilkins, Ippei Ukai, Ed Halley, Bruno Postle, Gerry Patterson and Brent
72       Townshend.
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74       This man page was written by Cyril Brulebois
75       <cyril.brulebois@enst-bretagne.fr> and is licensed under the same terms
76       as the hugin package itself.
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80"Version: 2020.0.0"               2021-01-26                   VIG_OPTIMIZE(1)
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