Quantitative assessment mechanism transcending visual perceptual evaluation for image dehazing

Quantitative assessment is a core part of the quality evaluation of image dehazing. It is also one of the primary factors that restrict the progress of image dehazing technologies. Because of its high significance in modern information technologies, from both theoretical and practical perspectives, it has attracted increased attention. So what is the quantitative assessment of image dehazing? What are the hurdles associated with it? How to break the bottlenecks in the quantitative assessment of image dehazing? With the present paper, we try to give comprehensive answers to these questions.