利用去雾算法，实现图片去雾效果，对于雾霾去除效果良好，但是在有天空是会出现层次感。
资源文件列表
guided image filtering/boxfilter.m , 931
guided image filtering/example_enhancement.m , 542
guided image filtering/example_feathering.m , 341
guided image filtering/example_flash.m , 607
guided image filtering/example_smoothing.m , 285
guided image filtering/guidedfilter.m , 957
guided image filtering/guidedfilter_color.m , 2462
guided image filtering/img_enhancement/man.jpg , 71261
guided image filtering/img_enhancement/timg.jpg , 149604
guided image filtering/img_enhancement/tree.jpg , 108395
guided image filtering/img_enhancement/trees.jpg , 157323
guided image filtering/img_enhancement/tulips.bmp , 245186