Abstract
A method to improve a contrast of a color image using a genetic algorithm is proposed. The accumulated edge strength in R, G and B channel image that compose an output color image is used for evaluating an individual fitness. The difference of color hues between on original color image and the output image is also used for evaluating the fitness. The experimental results show that the output images by the proposed method had good contrast and visual clearness compared with the results by the liner brightness transformation.