This paper presents a review on the different techniques of restoring bad weather images. Due to bad weather like fog, rain, haze and snow the vision gets degraded. The techniques used in many applications such as outdoor surveillance, automatic monitoring system, outdoor recognition system, intelligent transportation system and object detection. The paper objective is to explore the techniques used to enhance visibility of bad weather images. Paper projects the limitations of the existing methods and proposes algorithm for enhancing visibility of such weather conditions.

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