Abstract：In order to improve the effect of image dehazing, an improved dark channel prior (IDCP)algorithm was proposed. Transmittance was calculated accurately with narrow image and three dark channel prior linear fitting method,atmospheric light was estimated by four fork tree algorithm within a certain interval, color was compensated in order to avoid the image lower saturation. Experimental results show that IDCP is more refreshing and natural in vision, and the comprehensive evaluation value of different images is better than other algorithms.
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2019, Vol. 40 
