Color Correction for the Mobile Phone Camera

The color correction is needed because the spectral sensitivity of the CMOS image sensor (CIS) in each color is neither the same color component for most standard colors nor the appropriate color representation for any output devices. In the conventional method, a color correction is empirically obtained by a large number of iterative experiments, but the result is not so satisfied. In this paper, a new method to obtain the efficient color correction method for CIS digital camera is proposed. The experimental results show that the transfer characteristic of CIS by the proposed method is close to that of the ideal standard camera. In addition, we confirmed that the image quality of CIS mobile phone camera by the proposed color correction method is dramatically enhanced.