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       enblend - combine images using a multiresolution spline


       enblend [options] [--output=IMAGE] INPUT...


       Blend INPUT images into a single IMAGE.

       INPUT... are image filenames or response filenames.  Response filenames
       start with an "@" character.

   Common options:
       -V, --version
              output version information and exit

       -a     pre-assemble non-overlapping images

       -h, --help
              print this help message and exit

       -l, --levels=LEVELS
              number of blending LEVELS to use (1 to 29); negative  number  of
              LEVELS decreases maximum

       -o, --output=FILE
              write output to FILE; default: "a.tif"

       -v, --verbose[=LEVEL]
              verbosely  report  progress;  repeat  to  increase  verbosity or
              directly set to LEVEL

       -w, --wrap[=MODE]
              wrap around image boundary,  where  MODE  is  NONE,  HORIZONTAL,
              VERTICAL,  or  BOTH;  default: none; without argument the option
              selects horizontal wrapping

       -x     checkpoint partial results

              set  compression  of  output   image   to   COMPRESSION,   where
              COMPRESSION  is: NONE, PACKBITS, LZW, DEFLATE for TIFF files and
              0 to 100 for JPEG files

   Extended options:
       -b BLOCKSIZE
              image cache BLOCKSIZE in kilobytes; default: 2048KB

       -c     use CIECAM02 to blend colors

       -d, --depth=DEPTH
              set the number of bits per channel of the  output  image,  where
              DEPTH is 8, 16, 32, r32, or r64

       -g     associated-alpha hack for Gimp (before version 2) and Cinepaint

       --gpu  use graphics card to accelerate seam-line optimization

              manually  set  the size and position of the output image; useful
              for cropped  and  shifted  input  TIFF  images,  such  as  those
              produced by Nona

       -m CACHESIZE
              set image CACHESIZE in megabytes; default: 1024MB

   Mask generation options:
       --coarse-mask[=FACTOR] shrink overlap regions by FACTOR to speedup mask
              generation; this is the default; if omitted FACTOR defaults to 8

              generate mask at full image resolution;  use  e.g.   if  overlap
              regions are very narrow

              smooth the difference image prior to seam-line optimization with
              a Gaussian blur of RADIUS; default: 0 pixels

              turn on mask optimization; this is the default

              turn off mask optimization

              set the optimizer's weigths for distance and mismatch;  default:

              set  LENGTH  of  single  seam  segment;  append "%" for relative
              value; defaults: 4 for coarse masks and 20 for fine masks

              set annealing parameters  of  optimizer  strategy  1;  defaults:

              set search RADIUS of optimizer strategy 2; default: 25 pixels

              save   generated  masks  in  TEMPLATE;  default:  "mask-%n.tif";
              conversion chars: %i: mask index,  %n:  mask  number,  %p:  full
              path,  %d:  dirname,  %b: basename, %f: filename, %e: extension;
              lowercase characters refer to  input  images  uppercase  to  the
              output image

              use  existing masks in TEMPLATE instead of generating them; same
              template characters as "--save-masks"; default: "mask-%n.tif"

       --visualize[=TEMPLATE] save results  of  optimizer  in  TEMPLATE;  same
              characters as "--save-masks"; default: "vis-%n.tif"


       Written by Andrew Mihal and others.


       Report bugs at <>.


       Copyright (C) 2004-2009 Andrew Mihal.  License GPLv2+: GNU GPL  version
       2 or later <>
       This  is  free  software:  you  are free to change and redistribute it.
       There is NO WARRANTY, to the extent permitted by law.


       The full documentation for enblend is maintained as a  Texinfo  manual.
       If  the  info and enblend programs are properly installed at your site,
       the command

              info enblend

       should give you access to the complete manual.