1ALIGN_IMAGE_STACK(1)                 HUGIN                ALIGN_IMAGE_STACK(1)
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NAME

6       align_image_stack - Align overlapping images for HDR or focus stack
7       creation
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SYNOPSIS

10       align_image_stack [options] input files
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DESCRIPTION

13       align_image_stack is used for the alignment of slightly misaligned
14       images or for the registration of a stereo images pair.  When several
15       differently exposed images are taken in the process of creating a High
16       Dynamic Range image, the images are not perfectly aligned, and the
17       quality of the HDR image created will suffer from this.
18       align_image_stack uses the tools available to hugin to optimize the
19       roll, pitch and yaw, as well as some parameters of the lens geometry,
20       to align the images.
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OPTIONS

23       Modes of operation:
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25       -p file
26           Output .pto file (useful for debugging, or further refinement)
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28       -a prefix
29           Output aligned images as prefix_xxxx.tif
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31       -o output
32           Align images and merge them to HDR, generate output.hdr
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34       Modifiers:
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36       -v  Verbose, print progress messages. Repeat for higher verbosity
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38       -e  Assume input images are full frame fish eye (default: rectilinear)
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40       -t num
41           Remove all control points with an error higher than num pixels
42           (default: 3)
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44       --corr=num
45           Correlation threshold for identifying control points (default: 0.9)
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47       -f HFOV
48           Approximate horizontal field of view of input images, use if EXIF
49           info not complete
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51       -m  Optimize field of view for all images, except for first. Useful for
52           aligning focus stacks with slightly different magnification.
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54       -d  Optimize radial distortion for all images, except for first.
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56       -i  Optimize image center shift for all images, except for first.
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58       -x  Optimize X coordinate of camera position
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60       -y  Optimize Y coordinate of camera position
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62       -z  Optimize Z coordinate of camera position
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64       -S  Assume stereo images - allow horizontal shift of control points.
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66       -A  Align stereo window - assumes -S
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68       -P  Align stereo window with pop-out effect - assumes -S
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70       -C  Auto crop the image to the area covered by all images
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72       -c num
73           Number of control points (per grid) to create between adjacent
74           images (default: 8)
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76       -l  Assume linear input files
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78       -s scale
79           Scale down image by 2^scale (default: 1 [2x down-sampling])
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81       -g gsize
82           Break image into a rectangular grid (gsize x gsize) and attempt to
83           find num control points in each section (default: 5 [5x5 grid])
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85       --distortion
86           Try to load distortion information from lens database
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88       --use-given-order
89           Use the image order as given on the command line.  (By default
90           images will be sorted by exposure values.)
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92       --gpu
93           Use GPU for remapping
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95       -h  Display help summary.
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AUTHORS

98       Written by Pablo d'Angelo. Also contains contributions from Douglas
99       Wilkins, Ippei Ukai, Ed Halley, Bruno Postle, Gerry Patterson and Brent
100       Townshend.  Stereo functionality added by Vladimir Nadvornik.
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102       This man page was written by Cyril Brulebois
103       <cyril.brulebois@enst-bretagne.fr>, updated by Terry Duell, and is
104       licensed under the same terms as the hugin package itself.
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108"Version: 2018.0.0"               2015-10-25              ALIGN_IMAGE_STACK(1)
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