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A method, server and system for defogging foggy images in sky areas

A sky area and server technology, which is used in image enhancement, image analysis, image data processing, etc., can solve the problem of poor image processing effect in foggy days, and achieve bright overall effect, reduced block effect, and good dehazing effect. Effect

Active Publication Date: 2021-10-19
SHANDONG NORMAL UNIV
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Problems solved by technology

[0008] In order to solve the deficiencies of the prior art, the first object of the present invention is to provide a method for defogging foggy images containing sky regions, which can improve the problem of poor processing effects of foggy images containing sky regions

Method used

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  • A method, server and system for defogging foggy images in sky areas

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Embodiment Construction

[0046] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0047] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0048] The invention provides a method for defogging a foggy image including a sky area, which can improve the p...

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Abstract

The invention discloses a method, a server and a system for defogging images of foggy days including sky areas. Among them, the method includes: using the gradient and the brightness threshold to segment the foggy image containing the sky area to obtain the image of the sky area and the image of the non-sky area; for the image of the non-sky area, the method of image fusion is used to refine the transmittance to obtain Image; for the image of the sky area, the atmospheric light value of the foggy image in the sky area is used to replace the brightness value of the sky area after defogging, and the correction parameters are set to increase the transmittance to obtain the defogged image, and the image of the non-sky area and the sky area The dehazed images obtained after dehazing the regional images are fused to obtain the final dehazed image. It can improve the poor image processing effect of foggy days that include sky areas.

Description

technical field [0001] The invention belongs to the field of digital image processing, and in particular relates to a fog-removing method, server and system for foggy images in sky areas. Background technique [0002] In foggy weather, clear road routes cannot be seen when traveling, effective information cannot be extracted from important images collected by scientific research, and the visual system will be affected. Therefore, research on image defogging processing is of great significance. [0003] According to the different principles of defogging algorithms, the main image defogging algorithms can be divided into two categories: [0004] The first category is image enhancement methods, which do not consider the degradation process of haze images. The ultimate goal is to improve the visual effect, so it is directly considered to improve the contrast of the foggy image, and the image can be achieved by various sharpening processes. Its main representative methods are h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/00G06T7/11G06T7/136
CPCG06T5/001G06T2207/10004G06T2207/20221G06T2207/30192G06T7/11G06T7/136
Inventor 杨峰白荣鑫
Owner SHANDONG NORMAL UNIV
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