Patent ID: 7483038

Claim:
A content reproduction apparatus for providing an external output apparatus with content, comprising: a nonvolatile memory unit for storing a lookup table used for generating a GUI screen to be displayed on the external output apparatus; a lookup table adjusting unit for adjusting a color range of one or more colors used in the lookup table according to a calculated numerical color range change value input by a user, wherein the lookup table adjusting unit includes an average value calculating unit for calculating an average value of color values in the color range of the one or more colors, an adjusted color value calculating unit for calculating an adjusted color value based on an adjusted value obtained by adjusting a difference between the average value and each color value by a color range change value of the one or more colors, and a unit for generating an adjusted lookup table which adjusts the lookup table by applying the calculated adjusted color value to generate the adjusted lookup table; and a control unit for generating the GUI screen using the adjusted lookup table, and for transmitting the GUI screen to the external output apparatus.