中国激光, 2019, 46 (3): 0309002, 网络出版: 2019-05-09
基于边界限制加权最小二乘法滤波的雾天图像增强算法 下载: 1147次
Fog Image Enhancement Algorithm Based on Boundary-Limited Weighte Least Squares Filtering
图 & 表
图 3. 透射率图像的对比。(a)原图;(b)文献[ 8]中的暗通道图像;(c)文献[ 8]中的透射率图像;(d)文献[ 8]中的去雾结果; (e)文献[ 14]中的边界限制图像;(f)文献[ 14]中的透射率优化图像;(g)文献[ 14]中的去雾后的图像; (h)所提方法的边界限制图像;(i)所提方法的透射率图像;(j)所提方法的去雾后的图像
Fig. 3. Comparison of transmission images. (a) Original image; (b) dark channel image in Ref.[8]; (c) transmission image in Ref.[8]; (d) dehazing image in Ref.[8]; (e) boundary constraint image in Ref.[14]; (f) transmission image in Ref.[14]; (g) dehazing image in Ref.[14]; (h) boundary constraint image by proposed algorithm; (i) optimized transmission image by proposed algorithm; (j) dehazing image by proposed algorithm
图 4. 不同去雾方法的结果对比。(a)原图;(b)文献[ 8];(c)文献[ 14];(d)文献[ 16];(e)文献[ 17];(f)文献[ 18];(g)所提算法
Fig. 4. Qualitative comparison of results of different dehazing methods. (a) Original image; (b) Ref.[8]; (c) Ref.[14]; (d) Ref.[16]; (e) Ref.[17]; (f) Ref.[18]; (g) proposed algorithm
图 5. 不同去雾方法中天空区域和细节特征对比。(a)原图;(b)文献[ 8];(c)文献[ 14];(d)文献[ 16];(e)文献[ 17];(f)文献[ 18];(g)所提算法
Fig. 5. Qualitative comparison of sky region and detail features of different dehazing methods. (a) Original image; (b) Ref.[8]; (c) Ref.[14]; (d) Ref.[16]; (e) Ref.[17]; (f) Ref.[18]; (g) proposed algorithm
表 1图像质量评价
Table1. Image quality evaluation
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李红云, 云利军, 高银. 基于边界限制加权最小二乘法滤波的雾天图像增强算法[J]. 中国激光, 2019, 46(3): 0309002. Hongyun Li, Lijun Yun, Yin Gao. Fog Image Enhancement Algorithm Based on Boundary-Limited Weighte Least Squares Filtering[J]. Chinese Journal of Lasers, 2019, 46(3): 0309002.