Adaptive Judgment Method of Fog Concentration
A fog and density technology, used in image enhancement, image analysis, instruments, etc., can solve problems such as noise, bright or dark images, unnaturalness, etc., to overcome excessive loss of details in dark places, reduce visual abruptness, The effect of reducing the probability of misjudgment
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[0030] like figure 1 As shown, the fog concentration adaptive judgment step of the present invention can be divided into a construction stage and a judgment stage. Specifically, the construction stage in the technical solution of the present invention includes dictionary construction, image query and threshold determination; the judgment stage first performs image query, and then combines The threshold output judges the fog density of the current image.
[0031] The dictionary construction can be divided into the following steps:
[0032] In order, image blocks with standard fog-free and different degrees of fog are collected with a certain overlap rate such as 50%, and the positions and contents of the fog-free image and the foggy image block are one-to-one correspondence;
[0033] Build a Difference Of Gaussian (DoG) filter template (the template can have multiple filter windows, and the scale of DoG can also have multiple combinations, such as figure 2 The template is one ...
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