Lens foggy identification method, camera module, and terminal equipment

Abstract

The invention discloses a lens fogging recognition method, a camera module, and terminal equipment. The method comprises steps of carrying out statistics of the total pixel amount and the number of feature pixels in a feature gray-scale value range, obtaining a defogging coefficient according to the total pixel amount and the number of feature pixels, comparing the defogging coefficient with a preset defogging threshold value, and carrying out defogging processing according to a comparison result. The defogging processing method is simple, a large amount of data analysis is not needed, and the current fog amount condition is easily, rapidly and efficiently obtained so that defogging operation can be executed in time. A mode of obtaining the number of pixels corresponding to the gray-scale value through gray-scale conversion and filtering processing are adopted, so the interference factor of data obtaining is small, the obtained data result is stable, the good reference comparison value is achieved, and accurate defogging operation is facilitated. The terminal equipment and the camera module adopt the lens fogging identification method in the application, so self-inspection can be facilitated to quickly and efficiently execute a defogging processing task, clear visual perception is provided for a user, and the user does not need to participate in the defogging processing task.

Description

technical field [0001] The present application relates to the technical field of image processing, and in particular to a lens fogging recognition method, a camera module and a terminal device. Background technique [0002] The water vapor floating in the atmosphere tends to gather on the surface of the lens of the camera due to changes in the ambient temperature, causing the pictures taken by the camera to be whitish. For example, cars often live outdoors. When driving in rainy and foggy weather or when the temperature difference between day and night changes greatly, frost and fog appear on the on-board camera module installed on the car, which will affect the driver's judgment of the surrounding environment and pose a safety hazard. Contents of the invention [0003] In order to solve the above problems, the present application provides a lens fogging identification method, a camera module and a terminal device. [0004] In the first aspect, the lens fog recognition me...

AI Technical Summary

Problems solved by technology

[0002] The water vapor floating in the atmosphere tends to gather on the surface of the lens of the camera due to changes in the ambient temperature, causing the pictures taken by the camera to be whitish

For example, cars often live outdoors, and when driving in rainy and foggy weather or when the temperature difference between day and night changes greatly, frost and fog appear on the on-board camera module installed on the car, which will affect the driver's judgment of the surrounding environment and pose a safety hazard

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