Align image stack

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

-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.

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