TWAIN SANE is a TWAIN datasource for Mac OS X that acquires images using the SANE backend libraries. The SANE backend libraries provide access to a large range of scanners connected through SCSI or USB. For a complete list see the documentation on the SANE project homepage. It works with my HP SCSI scanner, and many people have reported success with a large number of different scanners. The feedback from users have helped the SANE developers to fix problems with various backends, so with each release of the SANE backends more of the Mac OS X specific problems have been solved.
I have tested it together with the GraphicConverter, Image Capture, OmniPage and Microsoft Word applications, but it should work with other applications using TWAIN as well. The TWAIN SANE Interface works with Image Capture starting with TWAIN SANE Interface version 1.0.
The TWAIN SANE Interface is provided as a binary package and as source code. To use the interface you only have to install the binary package. Before installing the TWAIN SANE Interface package you should install the libusb and the sane-backends binary packages.
There is also a optional SANE Preference Pane package available, which makes it easier to configure the sane-backends drivers. If you don't install this package you can still configure the sane-backends using a text editor in the Terminal.