"TIFF (Tag Image File Format) is a raster image format that was
originally produced by Adobe. Raster image formats store the
picture as a bitmap describing the state of pixels, as opposed to
recording the length and locations of primitives such as lines and
curves. Libtiff is one of the standard implementations of the TIFF
specification and is in wide use today because of its speed, power,
and easy source availability.
"This article focuses on black-and-white TIFF images; a possible
future article will cover color images..."