Abstract
Image dehazing algorithm can restore a hazed image back to a haze-free image. Dark channel prior (DCP) is an efficient technique to estimate an airlight owing to its effectiveness. However, DCP causes considerable computation burdens, limiting its hardware efficiencies. To overcome this limitation, a smooth DCP (SDCP) technique is proposed in this study. The experimental results show that this study can save computation burdens by 70.9% with a minor loss of 1.03% on the accuracy of airlight estimation. Consequently, this study can greatly reduce computation burdens of DCP while keeping an accurate airlight estimation.
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