Improved Retinex image defogging method
An image and haze technology, applied in the field of improved Retinex image dehazing, can solve the problem that the dehazing result is not very ideal, and achieve the effect of improved dehazing effect, fast running speed, and clear distant scenery.
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[0035] The present invention will be further described below in conjunction with the accompanying drawings, but the implementation and protection of the present invention are not limited thereto. realized or understood.
[0036] Such as figure 1 As shown, the steps of this improved Retinex image defogging method are as follows:
[0037] Step 1: Input the haze image, according to the formula I(x,y)=R(x,y)L(x,y)+n(x,y), we should first estimate n(x,y) and In addition, since n(x,y) is caused by direct imaging of atmospheric light, its transformation is smooth and belongs to the low-frequency part. Here we use Gaussian filtering to estimate n(x,y).
[0038] Step 2: Subtract the estimated n(x,y) from the original image, and normalize the obtained value to obtain an intermediate result.
[0039] Step 3: According to the single-scale Retinex algorithm R(x,y)=log(I(x,y))-log(F(x,y)*I(x,y)), perform Gaussian filtering on the intermediate results and estimate The illuminance compone...
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