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Underwater image color enhancement method based on potential low-rank representation and image fusion

An underwater image, low-rank representation technology, applied in image enhancement, image analysis, image data processing, etc., to reduce loss, improve efficiency and quality

Active Publication Date: 2020-11-20
OCEAN UNIV OF CHINA
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Problems solved by technology

[0005] Aiming at the problems existing in the existing underwater image color correction algorithm, the present invention provides an underwater image color enhancement method based on latent low-rank representation and image fusion

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  • Underwater image color enhancement method based on potential low-rank representation and image fusion

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Embodiment Construction

[0090] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. Many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways than those described here. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0091] This embodiment proposes an underwater image color correction algorithm based on color balance and LatLrr fusion, such as figure 1 As shown, the underwater image color correction method provided by the present invention includes the following steps:

[0092] S101: the color balance correction module restores the natural color of the image by eliminating the unwanted color cast in the imaging result caused by the light or the...

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Abstract

The invention belongs to the technical field of underwater image processing. The invention discloses an underwater image color enhancement method based on potential low-rank representation and image fusion. The invention relates to the technical field of image processing, in particular to a method capable of performing color correction, defogging, detail enhancement and the like on an underwater image, which comprises the following steps of: 1) eliminating color cast in an imaging result caused by attenuation characteristics of illumination or light rays with different colors in water by adopting a color balance method with color compensation so as to recover the natural color of the image; 2) defogging operation is performed on the image by utilizing the characteristic of similarity between imaging in fog and underwater light propagation so that the image is enabled to more accord with the perception habit of the human eyes; according to the method for enhancing the underwater image quality, the underwater image quality can be remarkably improved, and a foundation is laid for research of image feature extraction, target recognition, tracking and the like.

Description

technical field [0001] The invention belongs to the technical field of underwater image processing, in particular to an underwater image color enhancement method based on latent low-rank representation and image fusion. Background technique [0002] In recent years, with the scarcity of terrestrial resources, people have begun to turn their attention to marine resources, and underwater image processing has gradually become the focus of research in related fields. Underwater image is an important carrier of marine information, but the complex underwater environment and harsh lighting conditions make the obtained underwater image seriously degraded; due to the scattering and absorption of water bodies, the underwater image has low contrast and large noise , blurred texture, serious fogging effect, blue-green hue and color distortion, etc., have a serious impact on the feature processing, target recognition and tracking of subsequent underwater images. Therefore, in order to i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00G06T5/50G06T7/90
CPCG06T5/50G06T7/90G06T2207/20192G06T5/92G06T5/73
Inventor 荣生辉赵文凤何波李腾跃曹雪婷刘永彬沈鉞年睿冯晨严天宏李光亮
Owner OCEAN UNIV OF CHINA
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