Underwater image restoration method based on texture color features and optimized transmissivity

Abstract

The invention discloses an underwater image restoration method based on texture color features and optimized transmissivity. The method comprises the following steps: (1) establishing an underwater image optical imaging model; (2) inputting an original underwater image, and estimating global background light of the original underwater image based on texture features and color features; (3) estimating transmissivity; wherein the estimation comprises estimation of red and bright channel transmissivity and blue and green channel transmissivity; and (4) restoring the underwater image, carrying outdetail enhancement, and finally outputting a clear underwater image. According to the method, the color and contrast of the underwater image can be recovered more accurately, and undersaturation andsupersaturation of the image are effectively reduced; color distortion can be reduced, and the restored image has high definition and quality; background light can be estimated more accurately, and higher robustness and adaptability are achieved.

Description

technical field [0001] The invention belongs to the technical fields of image processing and computer vision, and relates to an underwater image restoration method based on texture color features and optimized transmittance. Background technique [0002] Due to the huge development prospects of the ocean, countries all over the world have expanded the detection and exploration of the ocean. Underwater detection equipment is an indispensable equipment for seabed investigation and observation, and most of them are equipped with optical imaging systems. Visible light images are one of the main sources of information for underwater detection equipment. However, during the shooting of underwater images / videos, due to the absorption and scattering of light by the water body, the scattering effect of organic matter and a large number of suspended particles in the water body, and the artificial light source introduced during shooting, the underwater image / video will be blurred. The...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide an underwater image restoration method based on texture color features and optimized transmittance. The present invention comprehensively utilizes the texture features and color features of the background area and the optimized transmittance model , developed an underwater image restoration method that can effectively correct the color deviation of underwater images, solve the problems of low contrast and clarity, loss of texture and details, etc.

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