Air Quality Evaluation Based on Image Defogging
Yang Wen, Xiang Chen, Qing Min Liao · Applied Mechanics and Materials · 2014
Air quality evaluation based on digital image processing is an innovative and promising matter. The density of fog and haze can reflect air quality, therefore we introduce a new method for air quality evaluation via image defogging technology. Dark channel, proposed in [, is an excellent method to remove fog and haze. Using dark channel, we can acquire transmission map of an image, and transmission map contains the information of fog and haze's density, therefore, SDT(standard deviation of transmission) is adopted as a measure in this paper.