enblend enfuse全景融合算法

Copyright (C) 2004-2012 Andrew Mihal. This file is part of Enblend. * Programs This packages contains the programs Enblend and Enfuse. The source code and further information about Enblend are available at: http://enblend.sf.net ** Enblend Enblend is a tool for compositing images using a Burt&Adelson multiresolution spline. This technique tries to make the seams between the input images invisible. The basic idea is that image features should be blended across a transition zone proportional in size to the spatial frequency of the features. For example, objects like trees and windowpanes have rapid changes in color. By blending these features in a narrow zone, you will not be able to see the seam because the eye already expects to see color changes at the edge of these features. Clouds and sky are the opposite. These features have to be blended across a wide transition zone because any sudden change in color will be immediately noticeable. Enblend expects each input file to have an alpha channel. The alpha channel should indicate the region of the file that has valid image data. Enblend compares the alpha regions in the input files to find the areas where images overlap. Alpha channels can be used to indicate to Enblend that certain portions of an input image should not contribute to the final image. Enblend does not align images for you. Use a tool like Hugin or PanoTools to do this. The files produced by these programs are exactly what Enblend is designed to work with. ** Enfuse Enfuse is a tool for automatic exposure blending, contrast blending and much more. It can be used to fuse an exposure bracketed step automatically into a nicely looking image. See doc/enfuse.info and on Windows also contrib/enfuse_droplet/enfuse_droplet_readme.txt for more information. * Installation GNU Make is required to build the project, because some of the Makefiles contain pattern rules. ** Tarball ./configure YOUR-OPTIONS-IF-ANY-GO-HERE make make install ** Mercurial Repository *** AutoConf/AutoMake In the root directory of the project issue: make --makefile=Makefile.scm ./configure YOUR-OPTIONS-IF-ANY-GO-HERE make make install The package fully supports VPATH builds. Thus the following command sequence builds in a separate directory. cd ROOT-DIRECTORY make --makefile=Makefile.scm mkdir BUILD-DIR cd BUILD-DIR ROOT-DIRECTORY/configure YOUR-OPTIONS-IF-ANY-GO-HERE make make install *** CMake The canonical way to build Enblend and Enfuse is with Autotools, this is, autoconf(1) and automake(1). An alternative CMake build has been added since version 4.0. The CMake build strives to replicate the Autotools build. It may or may not work for you. It is currently maintained but not supported, meaning that it could break anywhere anytime in the future. cmake . make make install Analogously to Autotools, CMake allows for VPATH builds: mkdir BUILD-DIR cd BUILD-DIR cmake ROOT-DIRECTORY make make install * Specific Configuration Options Among the usual configuration options of the GNU autoconf system, the configure(1) script offers the following options to tailor Enblend and Enfuse. Remember that configure(1) creates a file called "config.h" that can serve for fine-tuning the configuration. We write the default values of all configuration options in capital letters. ** --enable-gpu-support=CHECK/yes/no -DENABLE_GPU=OFF/on (CMake) Enable code in Enblend to use the GPU for optimizing the seam line between two images if all necessary OpenGL libraries are found. Enfuse does not benefit of this code. OpenMP (see below) and GPU work together. Note that enabling GPU support does not mean Enblend will actually use the GPU. Besides passing option "--gpu" to Enblend the hardware as well as the X11 drivers have to fulfill certain requirements. See also option "--with-apple-opengl-framework". ** --enable-openmp=yes/NO -DENABLE_OPENMP=ON/off (CMake) Parallelize parts of Enblend and Enfuse with OpenMP. See http://www.openmp.org/ Note that OpenMP support and the ImageCache must not be activated both. The default is to configure with ImageCache and without OpenMP. If OpenMP support has been enabled, the utilization of special features of the actual, underlying OpenMP implementation can be controlled as usual with the environment variables OMP_NUM_THREADS, OMP_NESTED and OMP_DYNAMIC. See the OpenMP specification for details on the usage of these variables. ** --enable-split-doc=YES/no -DNOSPLIT=OFF/on (CMake) Split the documentation files in INFO or HTML format into small pieces. The default is "yes", split documentation. ** --enable-debug=yes/NO Compile without optimizations and enable all debug-checking code. The default is "no", build an optimized version without debugging symbols. ** --enable-image-cache=YES/no -DENABLE_IMAGECACHE=OFF/on (CMake) Activate the ImageCache feature, which allows for processing of large images. The ImageCache handles swapping parts of the images to disk. The default is "yes", enable the ImageCache. The ImageCache is recommended on systems where memory is scarce, but the images to blend or fuse are large. The ImageCache feature and OpenMP support must not be activated together. ** --with-apple-opengl-framework=yes/NO Sometimes AutoConf fails to detect Apple's OpenGL framework. Use this option on MAC OS X to force its usage without a test. See also option "--enable-gpu-support" and the section MacOSX below. ** --with-boost-filesystem=CHECK/yes/no/<LIBRARY> Use Boost "filesystem" library to get platform-independent path generation. The default is to check for usability. "No" forces the use of the internal path generation library. Supply a LIBRARY name if you want to override the default candidates "boost_filesystem-mt" for multi-threaded compilation and "boost_filesystem" for single-thread builds. ** --with-dmalloc=yes/NO Compile with the debug-malloc library. The library is available at http://www.dmalloc.com/. ** --with-openexr=CHECK/yes/no Build with support for reading and writing OpenEXR images. See http://www.openexr.com/ for the required libraries. ** --with-raster-dir=<DIR> Set the name of the raster-graphics directory, which always is a subdirectory of the XHTML documentation's root directory. Default: "raster". * CMake Specifics ** Configuration Options These options only apply to CMake. *** -DCPACK_BINARY_<SYSTEM>:BOOL=OFF/on Create a package for the specified <SYSTEM>, where <SYSTEM> is "DEB", "RPM", or "NSIS". *** -DCPACK_BINARY_<SYSTEM>:BOOL=ON/off Create other packages for the specified <SYSTEM>, where <SYSTEM> is "TBZ2", "TGZ", "STGZ", or "TZ". *** -DPACK_SOURCE_<SYSTEM>:BOOL=OFF/on Create a source package for the specified <SYSTEM>, where <SYSTEM> is "TBZ2", "TGZ", "TZ", or "ZIP". ** Configuration Example Creating a RedHat package on OpenSuSE cmake . \ -DDOC=ON -DENABLE_GPU=ON \ -DENABLE_IMAGECACHE=OFF -DENABLE_OPENMP=ON \ -DCPACK_BINARY_RPM:BOOL=ON make package This will create a package enblend-4.0.595-Linux.rpm, which you may install with sudo rpm -U enblend-4.0.595-Linux.rpm ** Important Configured Make(1) Targets help List all available targets. edit_cache If cmake-gui(1) is installed, start the GUI to edit the "CMakeCache.txt" file. enblend Create an Enblend executable. enfuse Create an Enfuse executable. man Create the manual pages for Enblend and Enfuse. doc3 Create the documentation. This includes html, info, and pdf documents, if the