Enblend-Enfuse are
open source
Open source is source code that is made freely available for possible modification and redistribution. Products include permission to use the source code, design documents, or content of the product. The open-source model is a decentralized sof ...
console application created by Andrew Mihal and mostly maintained by Hugin developers. It consists of Enblend, an
image blending tool useful for creating
panorama
A panorama (formed from Greek πᾶν "all" + ὅραμα "view") is any wide-angle view or representation of a physical space, whether in painting, drawing, photography, film, seismic images, or 3D modeling. The word was originally coined in ...
s, and Enfuse, an
exposure fusion
In image processing, computer graphics, and photography, exposure fusion is a technique for blending multiple exposures of the same scene (bracketing) into a single image. As in high dynamic range imaging (HDRI or just HDR), the goal is to capture ...
(HDR merging) and
focus stacking tool that combines the depth of field and dynamic range from multiple images of the same scene (
bracketing). Enblend-enfuse accepts images already aligned by other methods.
Technique
Enblend uses the Burt-Adelson spline for blending.
Enfuse uses the Mertens-Kautz-Van Reeth (MKVr) approach to exposure fusion, which does not require reconstructing an HDR intermediate. The MKVr approach involves blending images by quality estimates based on contrast, saturation, and well-exposedness.
Enblend extends the estimate with a fourth term of
information entropy, and allows the user to decide the weights of each quality estimator as well as specific implementations of the estimators. For example, a basic focus stack is combined in Enfuse by having the quality estimator only consider contrast, and by having the MKVr blending only use the single best-scoring pixel.
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Frontends
Enfuse is used in a number of other tools:
* Hugin Hugin may refer to:
* Bob Hugin (born 1954), American politician and businessman
* Hugin (longship), a Danish reconstruction of a Viking longship on display in Ramsgate, England
* HUGIN, a widely used tool for uncertain reasoning using Bayesian net ...
, an open-source panorama tool, uses Enblend-Enfuse for blending and HDR handling. Hugin provides align_image_stack, which aligns images so that Enfuse can process them.
* EnfuseGUI, an open source multi-processor GUI for enfuse mainly focused on HDR merging.
* MacroFusion, another open source GUI for enfuse.
Enfusion
another Windows GUI for Enfuse, with a focus on simplicity.
References
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Free software
Free photo stitching software
Free software programmed in C++