1HUGIN_STACKER(1)                     HUGIN                    HUGIN_STACKER(1)
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NAME

6       hugin_stacker - stack overlapping images to a single image
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SYNOPSIS

9       hugin_stacker [options] --mode=STRING images
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DESCRIPTION

12       hugin_stacker acts on a stack of overlapping images and produces a
13       combined image and/or a set of masked output images.
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15       hugin_stacker is useful for e.g.
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17       •   automatic tourist removal (not only tourists, also other moving
18           objects ;-))
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20       •   noise reduction
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22       •   visualize movement
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24       •   multiplicity
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OPTIONS

27       --mode
28           Select stack mode:
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30           min|minimum|darkest
31               Select the darkest pixel.
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33           max|maximum|brightest
34               Select the brightest pixel.
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36           avg|average|mean
37               Calculate the mean for each position.
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39           median
40               Calculate the median for each position.
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42           winsor
43               Calculate the Winsor trimmed mean for each position.  The
44               parameter can be set with --winsor-trim=NUMBER (default: 0.2).
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46           sigma
47               Calculate the sigma clipped mean for each position.  Fine-tune
48               with --max-sigma=NUMBER (default: 2) and
49               --max-iterations=NUMBER (default: 5).
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51   Further parameters
52       --output=FILE
53           Set the filename for the output file (if not given final.tif is
54           used).
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56       --compression=value
57           Set the compression of the output files.  For jpeg files use values
58           between 0 and 100.  For tiff files valid values are: PACKBITS,
59           DEFLATE, LZW.
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61       --bigtiff
62           Write output in BigTIFF format (only with TIFF output).
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64   Mask input images
65       --mask-input
66           Beside the stacked output hugin_stacker can also mask the input
67           images (available only for stacking modes median|winsor|clip). This
68           mode is activated with --mask-input. In this case the stacked image
69           is first calculated. Then each pixel in each image is checked: if
70           the value of this pixel differs more then mask sigma * standard
71           deviation from the mean/median, this pixel is made visible. If it
72           is in the mentioned range the pixel is masked out.
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74       --mask-sigma=NUMBER
75           sets the sigma parameter for --mask-input. Default is 2.
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77       --mask-suffix=STRING
78           Output a separate mask image for each input image named
79           inputfilenameSTRING.  Default value is "_mask".
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81       --multi-layer-output
82           Output a layered TIFF with the name specified with --output. The
83           file contains the averaged image as layer 0 and all input images as
84           additional layers with the mask as described above.
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AUTHORS

87       POD-format documentation converted from
88       <https://wiki.panotools.org/Hugin_stacker> by Andreas Metzler
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92"Version: 2020.0.0"               2021-08-21                  HUGIN_STACKER(1)
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