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: 2013.0.0"                         2013-10-27                                   FULLA(1)