Patent ID: 7469259

Claim:
An extended boundary lookup table system comprising: a data processing system including a central processor unit operable under software control, the data processing system including, a data storage adapted for storing a table of data elements consisting of N addressable data storage locations, where N is an integer greater than 1; the data storage including a terminus data element storage location for storing a replication of a value stored in the Nth storage location; means for receiving a series of color values corresponding to an image defined in a first color space; address input means for receiving address data for the series of received color values; means for retrieving a series of first data points from the data storage at a location in accordance with received address data; means for retrieving a series of second data points, each paired with a corresponding first data point, from a corresponding location in the data storage to that specified by the address data; and means for communicating the first data point and the second data point pairs to an associated interpolator such that the first data point and the second data point are obtained from the Nth storage location and the terminus data element storage location such that both values are of equal value when the address data corresponds to the Nth storage location and enables an interpolation for each of the N storage locations and generates output color values defined in a second color space therefrom.