LibXISF
LibXISF is C++ library that can read and write XISF files produced by PixInsight. It implement XISF 1.0 specification. It is licensed under GPLv3 or later. To compile you will need C++17 compiler.
To compile simply run these commands
cmake -B build -S .
cmake --build build --parallel
cmake --install build
By default it use bundled libraries. If you wish to use external libraries you will may add
-DUSE_BUNDLED_LIBS=Off to first command. Then you will need lz4 pkg-config pugixml zlib installed.
You may also specify -DBUILD_SHARED_LIBS=Off if you want build static lib.
On big endian platform image data are expected to be in big endian format. When loading image they are converted to host format. When saving the file they are converted to little endian during saving.