enblend(1)
NAME
enblend - combine images using a multiresolution spline
SYNOPSIS
enblend [options] [--output=IMAGE] INPUT...
DESCRIPTION
Blend INPUT images into a single IMAGE. INPUT... are image filenames or response filenames. Response filenames start with an "@" character.
OPTIONS
Common options:
-l, --levels=LEVELS
limit number of blending LEVELS to use (1 to 29); negative
number of LEVELS decreases maximum; "auto" restores the default
automatic maximization
-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
--compression=COMPRESSION
set compression of output image to COMPRESSION, where
COMPRESSION is: "deflate", "jpeg", "lzw", "none", "packbits",
for TIFF files and 0 to 100, or "jpeg", "jpeg-arith" for JPEG
files, where "jpeg" and "jpeg-arith" accept a compression level
Advanced options:
--blend-colorspace=COLORSPACE
force COLORSPACE for blending operations; Enblend uses "CIELUV"
for images with ICC-profile and "IDENTITY" for those without and
also for all floating-point images; other available blend color
spaces are "CIELAB" and "CIECAM"
-c, --ciecam
use CIECAM02 to blend colors; disable with "--no-ciecam"; note
that this option will be withdrawn in favor of
"--blend-colorspace"
-d, --depth=DEPTH
set the number of bits per channel of the output image, where
DEPTH is "8", "16", "32", "r32", or "r64"
-f WIDTHxHEIGHT[+xXOFFSET+yYOFFSET]
manually set the size and position of the output image; useful
for cropped and shifted input TIFF images, such as those
produced by Nona
-g associated-alpha hack for Gimp (before version 2) and Cinepaint
-w, --wrap[=MODE]
wrap around image boundary, where MODE is "none", "horizontal",
"vertical", or "both"; default: none; without argument the
option selects horizontal wrapping
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
--fine-mask
generate mask at full image resolution; use e.g. if overlap
regions are very narrow
--optimize
turn on mask optimization; this is the default; disable with
"--no-optimize"
--save-masks[=TEMPLATE]
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
--load-masks[=TEMPLATE]
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
template
characters as "--save-masks"; default: "vis-%n.tif"
Expert options:
-a, --pre-assemble
pre-assemble non-overlapping images; negate with
"--no-pre-assemble"
-x checkpoint partial results
--fallback-profile=PROFILE-FILE
use the ICC profile from PROFILE-FILE instead of sRGB
--layer-selector=ALGORITHM
set the layer selector ALGORITHM; default: "all-layers";
available algorithms are: "all-layers": select all layers in any
image; "first-layer": select only first layer in each
(multi-)layer image; "last-layer": select only last layer in
each (multi-)layer image; "largest-layer": select largest layer
in each (multi-)layer image; "no-layer": do not select any layer
from any image;
--parameter=KEY1[=VALUE1][:KEY2[=VALUE2][:...]]
set one or more KEY-VALUE pairs
Expert mask generation options:
--primary-seam-generator=ALGORITHM
use main seam finder ALGORITHM, where ALGORITHM is
"nearest-feature-transform" or "graph-cut"; default: "graph-cut"
--image-difference=ALGORITHM[:LUMINANCE-WEIGHT[:CHROMINANCE-WEIGHT]]
use ALGORITHM for calculation of the difference image, where
ALGORITHM is "max-hue-luminance" or "delta-e"; LUMINANCE-WEIGHT
and CHROMINANCE-WEIGHT define the weights of lightness and
color; default: delta-e:1:1
--optimizer-weights=DISTANCE-WEIGHT[:MISMATCH-WEIGHT]
set the optimizer's weigths for distance and mismatch; default:
8:1
--mask-vectorize=LENGTH
set LENGTH of single seam segment; append "%" for relative
value; defaults: 4 for coarse masks and 20 for fine masks
--anneal=TAU[:DELTAE-MAX[:DELTAE-MIN[:K-MAX]]]
set annealing parameters of optimizer strategy 1; defaults:
0.75:7000:5:32
--dijkstra=RADIUS
set search RADIUS of optimizer strategy 2; default: 25 pixels
Information options:
-h, --help
print this help message and exit
-V, --version
output version information and exit
--show-globbing-algorithms
show all globbing algorithms
--show-image-formats
show all recognized image formats and their filename extensions
--show-signature
show who compiled the binary when and on which machine
--show-software-components
show the software components with which Enblend was compiled
Enblend accepts arguments to any option in uppercase as well as in
lowercase letters.
ENVIRONMENT
OMP_NUM_THREADS
The OMP_NUM_THREADS environment variable sets the number of
threads to use in OpenMP parallel regions. If unset Enblend
uses as many threads as there are CPUs.
OMP_DYNAMIC
The OMP_DYNAMIC environment variable controls dynamic adjustment
of the number of threads to use in executing OpenMP parallel
regions.
AUTHOR
Written by Andrew Mihal, Christoph Spiel and others.
REPORTING BUGS
Report bugs at <https://bugs.launchpad.net/enblend>.
COPYRIGHT
Copyright 2004-2009 Andrew Mihal. Copyright 2009-2016 Christoph Spiel. License GPLv2+: GNU GPL version 2 or later <http://www.gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
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