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: 2011.4.0"						    2011-12-02								  FULLA(1)