Effective Color Interpolation in Ccd Color Filter Array Using Signal Corrleation

In this paper, we propose an effective color filter array interpolation method for digital still cameras using a simple image model that correlates the R, G , B channels. The main contribution of this paper is that we propose a low complexity interpolation method to improve the image quality. Simulation results verify that the proposed method obtain superior image quality. The G channel of the proposed method outperforms 6.34dB over bilinear method, and the R, B channels have 7.69dB improvement in average. Furthermore, the complexity of the proposed method is acceptable compared with the existing methods.