Efficient Color Correction Using Normalized Singular Value

A duststorm image has a reddish or yellowish color cast. Though a duststorm image and a hazy image are obtained using the same pro-cess a hazy image has no color distortion as it has not been disturbed by particles but a duststorm image has color distortion owing to an imbalance in the color channel which is disturbed by sand particles. As a result a duststorm image has a degraded color channel which is rare in certain channels. Therefore a color balance step is needed to enhance a duststorm image naturally. This study goes through two steps to im-prove a duststorm image. In general the dark channel prior (DCP) is frequently applied in the dehazing step. However the existing DCP method has a halo effect similar to an over-enhanced image due to a dark channel and a patch image. According to this point this study proposes to adjustable DCP (ADCP). In the experiment results the proposed method was superior to state-of-the-art methods both subjectively and objectively.