RGB RGBW RGB TO RGBW COLOUR CONVERSION SYSTEM AND METHOD

摘要

The present invention discloses a color conversion system from RGB to RGBW. The system comprises: a linearization member for performing linearization on input RGB values; A comparison member for comparing the RGB values subjected to the linearization process so that the maximum value and the minimum value are obtained; A binarizing member for performing a luminance binarizing process on RGB values subjected to a linearization process so as to obtain a luminance binarization value; A gain determining unit that compares a percentage occupied by the total pixel quantity of the image with the preset number of pixels corresponding to the luminance binarized value so as to obtain a gain value; And an output value calculating unit for calculating an RGBW output value according to the linearized RGB value, the maximum value, the minimum value, the gain value, and the preset percentage. The present invention adds a white sub-pixel unit and does not result in reduction of the red output value, the green output value and the blue output value at the same time. Thus, the saturation rate of the color is improved while the brightness of the entire image is maintained without change.