Night traffic block port image enhancement method based on dark channel prior
A dark channel prior, dark channel image technology, applied in the field of night traffic bayonet image enhancement based on dark channel prior, can solve the problems of poor universality and limited enhancement effect, and achieves improved calculation speed, improved detailed information, The effect of enhanced detail information in the window area
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[0020] The theoretical basis of this method is: the night traffic checkpoint picture Like the inversion obtained after inverting the R, G, and B channels picture Like, its brightness histogram picture and foggy during the day picture Image brightness histogram picture The distribution trend is similar. Based on this theory, the present invention applies the defogging algorithm based on the dark channel prior to the traffic checkpoint at night picture image enhancement, and based on night traffic picture According to the characteristics of the image, the acquisition method of the parameters in the physical model has been improved.
[0021] combine figure 1 , the present invention comprises the following steps:
[0022] Step 1, enter night bayonet picture like, will night picture Invert like dark channel to get inverted night bayonet picture picture;
[0023] Step 2, using the reverse bayonet picture like, get dark channel picture picture;
[0024] Step 3, calcu...
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