Method and apparatus for adjusting the characteristics of the input image display system

The method and apparatus of the present invention provides a method for adjusting characteristics of an input image for the display system. The input color image having N elements, the display system can display a total of P gray scale values. The method and apparatus of the present invention in advance based P conversion coefficient associated with the first set of characteristics of the display system is stored in a lookup table. First, calculating method and apparatus according to the invention based on the input image and a second set of predetermined conversion coefficient estimates a grayscale value, and then find the corresponding grayscale value of a predictor in the lookup table the third group of transform coefficients, and then based on the third set of transform coefficients, to calculate the final gray level value, and finally the final gray level value of the combined image data to adjust the color elements in place of N of the input image, by this adjustment of the input image.