However we learned a great deal from this bit map graphics work and retain this description as an archive of a successful research enroute to a more successful product based on something better than bit mapped graphics. A bit map image is essentially inaccessible, because the visual appearance can seldom be translated into an audio or a tactile image that is easily recognized by a person with a severe print disability. Accessing this information requires a Netscape or Internet Explorer browser version 4.72 or later and, for blind users, a screen reader that works with those browsers. The most recent screen readers have begun using the document object model for access and do not respond in the way that the particular examples were designed for. This is an interesting lesson for developers not to depend on screen reader characteristics in making accessibility work-arounds.
Several examples are available by following the annotated examples link below.
As the mouse pointer is moved from object to object in the top frame, the label for each object is displayed in the bottom frame. Before trying this there are two very important things to know. In order to overcome limitations of Internet Explorer it is usually necessary to maximize the screen once this annotated image window is displayed. The second caveat is that users with any browser should return by closing the window, not by going back. Going back will usually take you through a long succession of ghosts created while you explored various image labels.