Fast light compensation defogging algorithm based on semi-inverse image guided filtering is proposed to solve problems such as slow speed

low efficiency

inexhaustive defogging

and color distortion in bright areas of the traditional single image defogging algorithm which is based on dark channel prior. This algorithm will take the threshold value adjusted semi-inverse image as the guide image. By guiding the filter wave

a atmospheric veil is acquired

based on the physical model of which to restore the clear image. The restored image will be compensated with reference white light to get the final defogging image. The experimental result shows that

this algorithm not only has lowered the time complexity of the traditional algorithm

but has regained the contrast and saturation level of the scene effectively

achieving thorough defogging in the close view

and significantly improve defogging in the distant view.