Image defogging method and system

A technology in images and images, applied in the field of images, can solve the problems of oversaturated image colors, good effects, and high complexity, and achieve the effects of improving image processing speed, improving defogging accuracy, and reducing complexity

Inactive Publication Date: 2016-11-16
程建 +1
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Problems solved by technology

Although the visibility of the image is obviously improved, since the real scene albedo is not restored from the physical model, the color of the restored image appears too saturated, and serious Halo effects are produced at the boundary of the sudden change in depth of field
In 2009, Dr. He Yuming proposed a dehazing algorithm based on

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  • Image defogging method and system
  • Image defogging method and system
  • Image defogging method and system

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Embodiment Construction

[0075] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0076] The object of the present invention is to provide an image defogging method and system that can well process the sky area in a foggy image, and the defogging method and system have high image restoration accuracy and low defogging complexity , The characteristics of fast processing speed.

[0077] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in d...

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Abstract

The invention discloses an image defogging method and system. The method comprises the steps: obtaining a fog image comprising a sky area; determining the sky area in the fog image; building an atmospheric scattering model; determining an atmospheric light value in the atmospheric scattering model according to the proportion of the sky area to the whole fog image, wherein the atmospheric light value is the atmospheric light intensity at an infinity place; determining the transmissivity of the fog image according to the atmospheric scattering model; and obtaining the observation intensity of the fog image. The method and system can carry out good defogging of the sky area in the fog image, are high in image reduction precision, are low in defogging complexity, and is high in processing speed.

Description

technical field [0001] The present invention relates to the image field, in particular to an image defogging method and system. Background technique [0002] Fog is a common natural phenomenon. It will reduce the visibility of the atmosphere and degrade the image of the scene. The content of the image taken in foggy days will be blurred and the contrast will decrease. This will seriously affect the outdoor image acquisition and processing, making the work impossible. . Therefore, it is of universal significance to carry out image signal processing and research on the problem of image quality degradation caused by this natural phenomenon. On the other hand, due to the rapid development of computer technology, the computing speed of computer technology is getting faster and faster, and the price of image processing system is decreasing day by day. With the rapid development of computer vision and image processing technology, the research and application of outdoor vision syst...

Claims

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Application Information

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IPC IPC(8): G06T5/00
CPCG06T5/003
Inventor 程建杨伟王峰邹瑞雪
Owner 程建
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