Rapid fog and haze image sharpening method
A clearing and image technology, applied in image enhancement, image data processing, instruments, etc., can solve problems such as poor restoration effect, non-adaptive parameters, and large amount of calculation, achieving strong adaptability, simple calculation, and reduced complexity. degree of effect
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[0041] The present invention will be further described below through specific embodiments.
[0042] refer to figure 1 , a fast image clearing method in foggy days of the present invention, the following variables are pre-defined to facilitate algorithm description:
[0043] Haze day image: I
[0044] Pixel coordinates: (x,y)
[0045] Color components: r, g, b
[0046] First define the size of the entire image as imagesize: imagesize=Height*Width, where Height is the height of the image and Width is the width of the image.
[0047] The pre-defined mean filter is meanfilter(N), then: Where N is the window size of the mean value filter, then the window size N1 of the large-scale mean value filter: N1=floor(k 1 *min(Width,Height)); the window size N2 of small-scale mean filtering: N2=1+floor(k 2 *min(Width,Height)); Among them, floor() is the operation of rounding down integers, k 1 ,k 2 It is a preset control parameter, Height is the height of the image, Width is the width...
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