raw-thumbnailer (thumbnailer for RAW camera files)
This simple program generates thumbnails of digital camera raw image
files using libopenraw and GDK. It supports the same file formats as
libopenraw (http://libopenraw.freedesktop.org/wiki/FileFormats).
This thumbnailer is designed to be small, lightweight and fast. It
is primarily intended to be used with file managers (although it
could easily be used by a photograph management program) and is
used by thunar-thumbnailers.
Usage: raw-thumbnailer -i input_file -o output_file -s size