Power transmission line monitoring image defogging method based on Retinex

Abstract

The invention discloses a power transmission line monitoring image defogging method based on Retinex, and mainly solves the problem that an existing image defogging method cannot effectively improve the quality of a power transmission line monitoring image in foggy days. According to the implementation scheme, the method comprises the following steps: acquiring a foggy day power transmission linemonitoring image, and splitting the image into RGB channel images; performing multi-scale guided filtering on the RGB channel image, and estimating an illumination component; performing weighting to remove the illumination component of the RGB channel image to obtain a restored image; performing histogram equalization on the restored image to obtain an enhanced image; calculating a fusion coefficient, and fusing the restored image and the enhanced image to obtain a fused image; and combining the fused images of the RGB channels to obtain a final defogged image. According to the invention, defogging processing is carried out on the monitored image of the power transmission line through an image processing technology, a defogging processing result with relatively high quality can be obtained, the contrast is high, details are prominent, the method is suitable for human eyes to watch, the practicability is high, and the method can be used for defogging enhancement of the monitored image under various backgrounds of the power transmission line.

Description

technical field [0001] The invention belongs to the technical field of image processing, and in particular relates to an image defogging method, which can be used for defogging enhancement of power transmission line monitoring images in foggy weather. Background technique [0002] In recent years, the scale of the power grid has continued to expand and the transmission lines have grown rapidly. It is gradually necessary to use intelligent image monitoring technology to efficiently and quickly complete the daily inspection of power equipment. The image monitoring system is very sensitive to weather conditions and is easily affected by foggy weather and insufficient light, resulting in low contrast and severe feature attenuation of the collected outdoor images, which brings difficulties to subsequent identification and detection work. Therefore, it is necessary to perform defogging processing on the monitoring images of transmission lines in foggy days, so as to effectively im...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problem that the existing image defogging method cannot effectively improve the image quality of transmission line monitoring in foggy days, and proposes a transmission line monitoring image defogging method, in order to improve the quality of monitoring images of transmission lines in foggy days, and achieve the effect of defogging processing with improved contrast and outstanding details

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