Defogging method and device for image data

A technology of image data and images, which is applied in the field of computer image processing, can solve problems such as poor defogging effect, and achieve the effect of improving the effect of defogging processing

Inactive Publication Date: 2013-04-24
TELEFRAME TECH BEIJING
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method and device for defogging image da

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  • Defogging method and device for image data
  • Defogging method and device for image data

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Embodiment Construction

[0020] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0021] Aiming at the problem that the defogging method in the related art cannot defog the fogged image taken in snowy weather, the embodiment of the present invention provides a defogging scheme for image data. That is, in the weather where fog and snow coexist, the present invention first calculates the brightness of the sky area, then automatically separates the white area, and further performs defogging processing on the remaining area. The technical solutions of the embodiments of the present invention are described in detail below.

[0022] According to an embodiment of the present invention, a method for defogging image data is provided.

[0023] figure 1 is a flow chart of a method f...

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Abstract

The invention discloses a defogging method and a device for image data, wherein the method for the image data comprises a step of acquiring image data I (x, y) of a fog contained image shot in snowy day, a step of determining sky brightness A of the image data I (x, y) of the fog contained image, a step of dividing the image data I (x, y) of the fog contained image into a white zone omega white and a non-white zone omega non-white according to the sky brightness A, and a step of carrying out defogging process on the image data of the non-white zone omega non-white. According to the technical scheme, the fog containing image shot in the snowy day is divided into the white zone and the non-white zone, the defogging process is carried out on the non-white zone, and the defogging processing effect is improved.

Description

technical field [0001] The present invention relates to the technical field of computer image processing, in particular to a method and device for defogging image data. Background technique [0002] Fog is a common factor that affects the "cognitive" ability of outdoor visual systems such as surveillance systems. In outdoor video surveillance, the existence of fog greatly interferes with the normal work of the surveillance system. The reason is that in foggy weather, the visibility of the scene is reduced, and the features such as the contrast and color of the image are attenuated. Eliminate the influence of haze on the scene image. [0003] Since the snowy image contains a large white area, the defogging method in the related art cannot achieve good results, the degree of defogging is not high, and the image after defogging is not very realistic. Contents of the invention [0004] The present invention aims to provide a method and device for defogging image data, so as ...

Claims

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Application Information

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IPC IPC(8): G06T5/00
Inventor 刘忠轩何小波
Owner TELEFRAME TECH BEIJING
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