Single image dehazing based on pixel minimum channel

Abstract

Single image dehazing is an active research area in the image proceesing field. A popular model-based scheme based on the dark channel prior (DCP) prevails in single image dehazing because of its satisfactory performance for most of cases. However, it is well-known that the DCP scheme suffers from high computational cost to refine the transmission map. It is observed that the problem in the DCP scheme because of the block-based dark channel estimation. In this paper, we present a single image dehazing scheme based on pixel minimum channel (PMC) to relieve the problem of high computational cost. The simulation results indicate that the proposed PMC based scheme outperforms the compared schemes when both efficiency and visual quality are considered.