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Picture processing method and device

An image processing, image technology, applied in the field of image processing, can solve the problem of insufficient use of image depth information

Inactive Publication Date: 2015-07-08
HISENSE VISUAL TECH CO LTD
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Problems solved by technology

[0005] In summary, when using the method of atmospheric scattering model to process foggy degraded images, although the effect of atmospheric scattering model on foggy degraded images is better, there is still a problem that the depth information of the original image is not fully utilized. question

Method used

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Embodiment Construction

[0026] The embodiment of the present invention provides an image processing method and equipment. Based on the atmospheric scattering model, the edge information of the collected image is enhanced by introducing the guide map, and by combining the joint bilateral filtering algorithm, the collected image is realized. The edge information and depth information of the original image are preserved, thereby improving the display quality of the target image obtained after the foggy degraded image is processed by the method of the atmospheric scattering model.

[0027] The image processing method provided by the present invention will be explained below in combination with embodiments.

[0028] see figure 1 , the embodiment of the present invention provides a method for image processing, the method comprising:

[0029] S101. Determine the grayscale image according to the minimum value among the luminance values ​​of the three channels of red, green and blue RGB of each pixel in the ...

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Abstract

The invention provides a picture processing method and device. The edge information of a collected picture is reserved by introducing a guidance map, so that the display quality of a target picture which is obtained after a fog-degraded image is processed through an atmospherical scattering model is improved. The method comprises the steps that a gray level image is determined according to the smallest value among the brightness values of the three RGB channels of each pixel in the collected picture; a guidance map is generated according to the gray level image through a bilateral filter algorithm, and an airglow value is determined according to the gray level image through a dark channel defogging algorithm; the gray level image is processed according to the guidance map through the bilateral filter algorithm, and an airglow curtain picture is determined; the transmissivity of pixels in the collected picture is determined according to the airglow value and the airglow curtain picture; a target picture is determined according to the collected picture, the airglow curtain picture and the transmissivity through the atmospherical scattering model.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to an image processing method and device. Background technique [0002] With the development of computer vision and image processing technology, outdoor vision systems have been widely used in transportation, security defense, terrain detection and other fields. However, under foggy conditions, due to the scattering effect of particles such as mist and smoke in the atmosphere, the images acquired by the outdoor vision system have quality degradation problems such as reduced contrast, color distortion, and blurring. [0003] At present, there are roughly two methods of defogging for degraded images in foggy days. One is to upgrade the hardware of the vision system, that is, to use a telephoto high-zoom motorized lens as a high-definition fog lens. The near-infrared light of "bullet light" penetrates the fog and processes it on the camera to achieve the purpose of fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00
Inventor 荀晶刘恒
Owner HISENSE VISUAL TECH CO LTD
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