Hugin () is a cross-platform

open source Open source is source code that is made freely available for possible modification and redistribution. Products include permission to use and view the source code, design documents, or content of the product. The open source model is a decentrali ...

panorama A panorama (formed from Greek language, Greek πᾶν "all" + ὅραμα "view") is any Obtuse angle, wide-angle view or representation of a physical space, whether in painting, drawing, photography (panoramic photography), film, seismic image ...

photo stitching and HDR merging program developed by Pablo d'Angelo and others. It is a GUI front-end for Helmut Dersch's

Panorama Tools Panorama Tools ''(also known as PanoTools)'' are a suite of programs and libraries for image stitching, i.e., re-projecting and blending multiple source images into immersive panoramas of many types. It was originally written by German physics ...

and Andrew Mihal's '' Enblend'' and ''Enfuse''. Stitching is accomplished by using several overlapping photos taken from the same location, and using control points to align and transform the photos so that they can be blended together to form a larger image. Hugin allows for the easy (optionally automatic) creation of control points between two images, optimization of the image transforms along with a preview window so the user can see whether the panorama is acceptable. Once the preview is correct, the panorama can be fully stitched, transformed and saved in a standard image format.

Features

Hugin and the associated tools can be used to * combine overlapping images for panoramic photography * correct complete panorama images, e.g. those that are "wavy" due to a badly levelled

panoramic camera Panoramic photography is a technique of photography, using specialized equipment or software, that captures images with horizontally elongated field of view, fields of view. It is sometimes known as ''wide format photography''. The term has also ...

* stitch large mosaics of images and photos, e.g. of long walls or large

microscopy Microscopy is the technical field of using microscopes to view subjects too small to be seen with the naked eye (objects that are not within the resolution range of the normal eye). There are three well-known branches of microscopy: optical mic ...

samples * find control points and optimize parameters with the help of software assistants/wizards * output several

projection Projection or projections may refer to: Physics * Projection (physics), the action/process of light, heat, or sound reflecting from a surface to another in a different direction * The display of images by a projector Optics, graphics, and carto ...

types, such as equirectangular (used by many full spherical viewers), mercator,

cylindrical A cylinder () has traditionally been a Solid geometry, three-dimensional solid, one of the most basic of curvilinear geometric shapes. In elementary geometry, it is considered a Prism (geometry), prism with a circle as its base. A cylinder may ...

stereographic Stereoscopy, also called stereoscopics or stereo imaging, is a technique for creating or enhancing the illusion of depth in an image by means of stereopsis for binocular vision. The word ''stereoscopy'' derives . Any stereoscopic image is ...

, and

sinusoidal A sine wave, sinusoidal wave, or sinusoid (symbol: ∿) is a periodic wave whose waveform (shape) is the trigonometric sine function. In mechanics, as a linear motion over time, this is '' simple harmonic motion''; as rotation, it correspond ...

* perform advanced photometric corrections and HDR stitching With the release of 2010.4.0, which includes a built-in control point generator, the developers consider Hugin to be feature-complete. Image:Hellbrunn banqueting hall 360 panoramic view.jpg, 360° panoramic view of a banqueting hall, the ceiling is distorted Image:Hellbrunn_banqueting_hall_ceiling_fisheye_projection.jpg, the same basic images with fisheye projection and different view angle

Development

Infrastructure

The Hugin development is tracked on Launchpad and the code resides in a

Mercurial Mercurial is a distributed revision control tool for software developers. It is supported on Microsoft Windows, Linux, and other Unix-like systems, such as FreeBSD and macOS. Mercurial's major design goals include high performance and scalabi ...

repository.

Google Summer of Code

Five projects for the development of Hugin / panotools were accepted for the 2007

Google Summer of Code The Google Summer of Code, often abbreviated to GSoC, is an international annual program in which Google awards stipends to contributors who successfully complete a free and open-source software coding project during the summer. , the program is ...

. Additionally a sixth, community sponsored project has been set up. The projects were: * Automatic feature detection by Pedro Alonso (Spain), mentored by Herbert Bay (Switzerland) * New modular GUI by Ippei Ukai (Japan), mentored by Yuval Levy (Canada), who is also the lead administrator on the Summer of Code effort * HDR de-ghosting by Jing Jin (USA), mentored by Pablo d'Angelo (Germany) who is also the lead developer on Hugin * Large image processing with VIPS by Mohammad Shahiduzzaman (Bangladesh), mentored by John Cupitt (United Kingdom) * Interactive Panorama Viewer by Leon Moctezuma (Mexico), mentored by Aldo Hoeben (The Netherlands) * Community project: PTbatcher by Zoran Mesec (Slovenija), mentored by Daniel M. German (Canada) Hugin was also accepted to Summer of Code 2008. Projects were: * Fast,

OpenGL OpenGL (Open Graphics Library) is a Language-independent specification, cross-language, cross-platform application programming interface (API) for rendering 2D computer graphics, 2D and 3D computer graphics, 3D vector graphics. The API is typic ...

accelerated preview by James Alastair Legg, mentored by Pablo d'Angelo * Automated feature matching by Onur Kucuktunc, mentored by Alexandre Jenny * User interface for masking of images by Fahim Mannan, mentored by Daniel M. German * Batch processing ability by Marko Kuder, mentored by Zoran Mesec * Automatic detection of non-static features in imagery (final application is called ''Celeste'') by Timothy Nugent, mentored by Yuval Levy In 2009 Google Summer of Code projects were as follows: *

Ghost In folklore, a ghost is the soul or Spirit (supernatural entity), spirit of a dead Human, person or non-human animal that is believed by some people to be able to appear to the living. In ghostlore, descriptions of ghosts vary widely, from a ...

removal for Enfuse by Luka Jirkovsky, mentored by Andrew Mihal * Layout model by James Legg, mentored by Bruno Postle * Automatic lens calibration by detecting straight lines in pictures by Timothy Nugent, mentored by Tom Sharpless * and fourth project for porting LightTwist to Mac OS X by Yulia Kotseruba, mentored by Sébastien Roy. In 2010 the Google Summer of Code projects were: * implementing a

patent A patent is a type of intellectual property that gives its owner the legal right to exclude others from making, using, or selling an invention for a limited period of time in exchange for publishing an sufficiency of disclosure, enabling discl ...

-free image feature detector and control point generator by Antoine Deleforge, mentored by Timothy Nugent. * creating a new interactive panorama overview, by Darko Makreshanski and mentored by James Legg * improving the make file libraries used in panorama stitching and * adding regression tests for libpano13 In 2011 the GSoC project was centered around Enblend's seam line optimization algorithm using graph-cut algorithm.New primary seam generator in Enblend, Hugin-ptx group
/ref>

References

External links

*
Hugin mailing list for users and developers
* OpenPhotoVR is a similar open-source software project
Panotools Next Generation wiki

project description * {{DEFAULTSORT:Hugin (Software) 2003 software Cross-platform free software Free software for BSD Free software for Linux Free software for Windows Free software for macOS Free photo stitching software Free software programmed in C++ Windows graphics-related software Photo software for macOS Photo software for Linux Software that uses wxWidgets HDR tone mapping software