Patent ID: 8125569

Claim:
Display system, comprising: video display; processor circuitry receiving demanded image information and adjusting the demanded image information for output on the display, the processor circuitry executing logic comprising: obtaining average picture level (APL) associated with the demanded image; using the APL to alter a gamma associated with the demanded image; using the APL to alter a DC transmission characteristic associated with the demanded image; and using the APL to alter a black stretch and white stretch characteristic associated with the demanded image, wherein the exponential function is control_index (gain(b)+rate(b)) * bgain * index(APL) where control_index is a pointer to every control point of the transfer curve to be modified by the equation, gain(b) is a direct factor to a user-established control, rate(b) represents a linear relationship between APL and a received gain multiplied by a user-established dynamic gain factor, bgain is a dynamic factor provided by the histogram, and index(APL) is a parameter representative of a received APL.