OnWorks favicon

align_image_stack - Online in the Cloud

Run align_image_stack in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command align_image_stack that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator



align_image_stack - Align overlapping images for HDR or focus stack creation


align_image_stack [options] input files


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


Modes of operation:

-p file
Output .pto file (useful for debugging, or further refinement)

-a prefix
Output aligned images as prefix_xxxx.tif

-o output
Align images and merge them to HDR, generate output.hdr


-v Verbose, print progress messages. Repeat for higher verbosity

-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)

Correlation threshold for identifying control points (default: 0.9)

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 camera position

-y Optimize Y coordinate of camera position

-z Optimize Z coordinate of camera position

-S Assume stereo images - allow horizontal shift of control points.

-A Align stereo window - assumes -S

-P Align stereo window with pop-out effect - assumes -S

-C Auto crop the image to the area covered by all images

-c num
Number of control points (per grid) to create between adjacent images (default: 8)

-l Assume linear input files

-s scale
Scale down image by 2^scale (default: 1 [2x down-sampling])

-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])

Try to load distortion information from lens database

Use NUM threads

Use GPU for remapping

-h Display help summary.


Written by Pablo d'Angelo. Also contains contributions from Douglas Wilkins, Ippei Ukai,
Ed Halley, Bruno Postle, Gerry Patterson and Brent Townshend. Stereo functionality added
by Vladimir Nadvornik.

This man page was written by Cyril Brulebois <cyril.brulebois@enst-bretagne.fr> and is
licensed under the same terms as the hugin package itself.

"Version: 2015.0.0" 2016-01-06 ALIGN_IMAGE_STACK(1)

Use align_image_stack online using onworks.net services

Free Servers & Workstations

Download Windows & Linux apps

  • 1
    The strace project has been moved to
    https://strace.io. strace is a
    diagnostic, debugging and instructional
    userspace tracer for Linux. It is used
    to monitor a...
    Download strace
  • 2
    A GUI for mkvextract utility (part of
    MKVToolNix) which incorporates most (if
    not all) functionality of mkvextract and
    mkvinfo utilities. Written in C#NET 4.0,...
    Download gMKVExtractGUI
  • 3
    JasperReports Library
    JasperReports Library
    JasperReports Library is the
    world's most popular open source
    business intelligence and reporting
    engine. It is entirely written in Java
    and it is able to ...
    Download JasperReports Library
  • 4
    Frappe Books
    Frappe Books
    Frappe Books is a free and open source
    desktop book-keeping software that's
    simple and well-designed to be used by
    small businesses and freelancers. It'...
    Download Frappe Books
  • 5
    Numerical Python
    Numerical Python
    NEWS: NumPy 1.11.2 is the last release
    that will be made on sourceforge. Wheels
    for Windows, Mac, and Linux as well as
    archived source distributions can be fou...
    Download Numerical Python
  • 6
    CMU Sphinx
    CMU Sphinx
    CMUSphinx is a speaker-independent large
    vocabulary continuous speech recognizer
    released under BSD style license. It is
    also a collection of open source tools ...
    Download CMU Sphinx
  • 7
    Old Feren OS Repositories
    Old Feren OS Repositories
    This was the Official Repository for
    Feren OS. To add the latest one, run
    this command: (16.04-based) echo
    "deb ...
    Download Old Feren OS Repositories
  • More »

Linux commands