Difference between revisions of "Align image stack"
m |
Dgjohnston (talk | contribs) m |
||
Line 32: | Line 32: | ||
Optimize Z coordinate of the camera position. Useful for aligning more distorted images. | Optimize Z coordinate of the camera position. Useful for aligning more distorted images. | ||
-S | -S | ||
− | Assume stereo images - allow horizontal shift of control points. | + | Assume stereo images - allow horizontal shift of control points. Adds all control points as "horizontal lines". |
-A | -A | ||
− | Align stereo window - assumes -S. | + | Align stereo window - assumes -S. Adds one "normal" control point that is the nearest point so everything will appear behind the display plane. |
-P | -P | ||
− | Align stereo window with pop-out effect - assumes -S. | + | Align stereo window with pop-out effect - assumes -S. Adds one "normal" control point that is the nearest point from the border areas so the center of the image may appear in front of the display plane. |
-C | -C | ||
Auto crop the image to the area covered by all images. | Auto crop the image to the area covered by all images. |
Revision as of 21:16, 17 April 2013
align_image_stack is a command-line tool available in the development version of hugin to align overlapping images to facilitate HDR creation, Exposure blending and extended Depth of Field images.
Usage
align_image_stack [options] input_files
Options: modes of operation
-p file
Output .pto file (useful for debugging, or further refinement)
-a prefix
Align images, output as prefix_xxxx.tif
-o output
Merge images to HDR, generate output.hdr
Options: modifiers
-v
Verbose, print progress messages
-e
Assume input images are full frame fish eye (default: rectilinear)
-t num
Remove all control points with an error higher than num pixels (default: 3)
-f HFOV
Approximate horizontal field of view of input images, use if EXIF info not complete
-m
Optimize field of view for all images, except for first. Useful for aligning focus stacks with slightly different magnification
-d
Optimize radial distortion for all images, except for first.
-i
Optimize image center shift for all images, except for first.
-x
Optimize X coordinate of the camera position.
-y
Optimize Y coordinate of the camera position.
-z
Optimize Z coordinate of the camera position. Useful for aligning more distorted images.
-S
Assume stereo images - allow horizontal shift of control points. Adds all control points as "horizontal lines".
-A
Align stereo window - assumes -S. Adds one "normal" control point that is the nearest point so everything will appear behind the display plane.
-P
Align stereo window with pop-out effect - assumes -S. Adds one "normal" control point that is the nearest point from the border areas so the center of the image may appear in front of the display plane.
-C
Auto crop the image to the area covered by all images.
-c num
Number of control points to create between adjacent images (default: 8)
-l
Assume linear input files
-s scale
Scale down image by 2^scale (default: 1 [2x downsampling]). Scaling down images will improve speed at the cost of accuracy.
-g gsize
Break image into a rectangular grid (gsize x gsize) and attempt to find num control points in each section (default: 5 [5x5 grid] )
-h
Display help.