A Practical Bayer Demosaicing Algorithm for Gphoto

The Gphoto project exists to provide free and open-source software support for USB and serial digital still cameras which use miscellaneous proprietary interface protocols and image data formats. The cameras supported range from very cheap to very expensive, but one thing that many of them need is a good and practical Bayer demosaicing algorithm. The algorithm should get good results with cheap cameras. The algorithm should not require a memory footprint which is unduly heavy, and the algorithm should not require excessive time to run, because gphoto should run even on fairly small computers. However, the priority is to support still cameras, not pccams or webcams, which makes the execution time to be a secondary issue, not a primary one. Recently, a practical implementation of the adaptive homogeneity-directed Bayer demosaicing algorithm has been written, which meets the above criteria and seems to give very nice results.