1ALIGN_IMAGE_STACK(1) HUGIN ALIGN_IMAGE_STACK(1)
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6 align_image_stack - Align overlapping images for HDR or focus stack
7 creation
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10 align_image_stack [options] input files
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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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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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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: 2019.0.0" 2019-07-25 ALIGN_IMAGE_STACK(1)