FULLA(1)                             HUGIN                            FULLA(1)



NAME
       fulla - Correct lens distortion, vignetting and chromatic aberration

SYNOPSIS
       fulla [options] inputfile(s)

DESCRIPTION
       Apply radial or flat-field vignetting correction as well as geometrical
       radial distortion and transversal chromatic aberration correction.

       fulla can be used to batch correct a large number of files. Radial
       distortion coefficients can be read from a PTLens database (only
       database version 4.2 is supported).

       Vignetting correction is done the same way as described in the nona
       script file documentation.  Vignetting correction can be done based on
       a flat-field or a radial scaling.

       Vignetting correction by flat-field division:
                               I = I / c,    c = flat-field / mean(flat-field)

       Radial vignetting correction:
                               I = I / c,    c = a + b*r^2 + c*r^4 + d*r^6

       The radial distortion correction is identical to the one implemented by
       PanoTools:

       r_new = a*r^4 + b*r^3 + c*r^2 + d*r   [1]

       Since transversal chromatic aberrations (TCA) leads to differently
       scaled objects in the red, green and blue channel, it can be corrected
       by scaling the red and blue channel so that they match the green
       channel. Most applications, like Photoshop or Picture Window Pro offer
       TCA correction by linear scaling. This is equal to varying the d
       parameter in equation [1].

       See http://hugin.sf.net/tutorials/tca for a method to determine these
       parameters.

OPTIONS
       -g a:b:c:d
           Radial distortion coefficient for all channels, (a, b, c, d)

       -b a:b:c:d
           Radial distortion coefficients for blue channel, (a, b, c, d). This
           is applied on top of the -g distortion coefficients, use for TCA
           corr

       -r a:b:c:d
           Radial distortion coefficients for red channel, (a, b, c, d). This
           is applied on top of the -g distortion coefficients, use for TCA
           corr

       -p  Try to read radial distortion coefficients (usually supplied using
           -g) from the PTLens database. The environment variable
           PTLENS_PROFILE should point to the profile.txt file. Since newer
           version of the PTLens database are incompatible with fulla,
           download the PTLens database from the hugin sourceforge website
           instead: http://www.sf.net/projects/hugin

       -m Canon
           Camera manufacturer, for PTLens database query. EXIF data inside
           JPEG files is read, if this option is not given

       -n Camera
           Camera name, for PTLens database query. EXIF data inside JPEG files
           is read, if this option is not given.

       -l Lens
           Lens name, for PTLens database query if not specified, a list of
           possible lenses is displayed

       -d 50
           Specify focal length in mm, for PTLens database query. EXIF data
           inside JPEG files is read, if this option is not given.

       -s  Do not rescale the image to avoid black borders.

       -f filename
           Vignetting correction by flat-field division

               I = I / c,    c = flat-field / mean(flat-field)

       -c a:b:c:d
           Radial vignetting correction by division:

               I = I / c,    c = a + b*r^2 + c*r^4 + d*r^6

       -i value
           Gamma of input data. used for gamma correction before and after
           flat-field correction

       -t n
           Number of threads that should be used during processing

       -h  Display help summary.

       -o name
           Set output filename. If more than one image is given, the name will
           be uses as suffix (default suffix: _corr)

       -e value
           Compression of the output files

           For JPEG output: 0-100
           For tiff output: DEFLATE, LZW
       -v  Verbose

AUTHORS
       Written by Pablo d'Angelo. Also contains contributions from Douglas
       Wilkins, Ippei Ukai, Ed Halley, Bruno Postle, Gerry Patterson and Brent
       Townshend.

       This man page was written by Cyril Brulebois
       <cyril.brulebois@enst-bretagne.fr> and is licensed under the same terms
       as the hugin package itself.



"Version: 2011.0.0"               2011-05-26                          FULLA(1)
