Abstract
Surveillance videos of coal mining faces have close relation to the safety of coal miners and mining efficiency. However, surveillance videos are always disturbed by some severe conditions such as atomization, low illumination, glare, and so on. Therefore, this paper proposed a hybrid algorithm (SSR-BF) based on the integration of single-scale Retinex (SSR) and bilateral filtering (BF) to enhance the image quality of surveillance videos. BF was coupled with SSR to reduce the noises and perfect the edge information in the image. The schematic diagram and pseudocode of SSR-BF was designed, and the parameters were set rationally to ensure the enhancement effects through some simulations. Finally, some comparisons with other methods were carried out, and the simulation results demonstrated that the proposed algorithm was superior to others and could be applied to image enhancement for poormonochrome images, especially the surveillance video of a coal mining face.
Highlights
Nowadays, video surveillance systems have been widely applied in many fields to monitor emergency actions or hazardous situations [1,2,3]
We proposed a hybrid algorithm based on single-scale Retinex and bilateral
We proposed a hybrid algorithm based on single-scale Retinex (SSR) and bilateral filtering (BF) to enhance the image quality filtering to enhance the image quality of coal mining face
Summary
Video surveillance systems have been widely applied in many fields to monitor emergency actions or hazardous situations [1,2,3]. Due to poor coal mining environments, the image quality of surveillance videos is sensitively affected by the external environment, including by atomization, low illumination, glare, and so on. If this phenomenon exists in the surveillance video, the image quality will decline sharply, which means that it cannot be used to accurately monitor hazardous states of machinery and some safety accidents will happen [4,5,6,7]. The Retinex algorithm, first proposed by Land [8], is widely used in image enhancement areas [9,10]. Single-scale Retinex (SSR) and multi-scale Retinex (MSR) are two typical
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