Apparatus for outputting textual renditions of graphical data and method therefor

摘要

A system and method for providing a textual rendition of graphical information incorporated in web pages is provided. The textual rendition may be output in a format accessible to those users with visual impairments for whom graphical representation of data cannot be perceived. For example, the textual rendition may be output in audio form. Alternatively, a tactile format may be used in conjunction with a Braille display, for example. The textual rendition is generated in response to an image analysis of the graphical information from which salient features of the graphical information may be extracted.