Image automatic exposure method, device, equipment and medium

Abstract

The present invention provides an image automatic exposure method, device, equipment and medium, the method comprising: acquiring visible light images and infrared images collected by an image sensor, where the image sensor is an RGB-IR image sensor; judging the day and night mode of the current environment where the image sensor is located ; When it is detected that the current environment is in the daytime mode, the visible light image is used as the main image to adjust the exposure using the automatic exposure algorithm to obtain a visible light image that meets the target exposure effect; when the current environment is detected to be in the night mode, according to the infrared image and the visible light image According to the exposure status and current exposure parameters, the main image is selected for exposure adjustment, and the infrared image and visible light image that meet the target exposure effect are obtained. According to the different day and night modes of the environment, the present invention adaptively switches the main image for exposure adjustment, so that different exposure strategies can be selected to realize automatic exposure adjustment. This method is simple to operate and easy to implement, and improves the image quality of subsequent image fusion.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to an image automatic exposure method, device, equipment and medium. Background technique [0002] The RGB-IR image sensor obtains a color image in a visible light region via R (red), G (green), and B (blue) pixels and also obtains an infrared image via infrared (IR) pixels. That is, a single RGB-IR sensor forms a new filter array through the arrangement and combination of R pixels, G pixels, B pixels and IR pixels. Compared with the traditional Bayer array image sensor, the RGB-IR image sensor replaces part of the green filter in the Bayer format with an infrared filter, which can simultaneously perceive visible light and invisible light. In harsh environments such as low illumination and fog, visible light images can obtain certain color information, while infrared light images can obtain better details. By fusing the two images, a final image with better quality...

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide an image automatic exposure method, device, equipment and medium for solving the problem of inability to adapt to the environment when exposing based on RGB-IR image sensors in the prior art. Adjustment, resulting in the problem of poor quality of the captured image

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