freeimage : Image library supporting many formats ( http://freeimage.sourceforge.net/ )
lensfun : lensfun: A library for rectifying and simulating photographic lens distortions ( http://lensfun.berlios.de/ )
openexr : ILM's OpenEXR high dynamic-range image file format libraries ( http://openexr.com/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a sekyfsr
For Paludis use this rsync : rsync://gentoo.zugaina.org/sekyfsr-portage
If you have a problem : ycarus(-at-)zugaina.org