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Video image enhancement method and device, and parking assisting system

A technology of video image and enhancement device, applied in the field of image processing, can solve the problems of low contrast, unclearness, color distortion, etc., and achieve the effect of high contrast and clarity

Inactive Publication Date: 2015-11-04
SAIC MOTOR
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the image processed by the global Retinex video image processing method may have color distortion, low contrast and unclear problems

Method used

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  • Video image enhancement method and device, and parking assisting system
  • Video image enhancement method and device, and parking assisting system
  • Video image enhancement method and device, and parking assisting system

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Embodiment Construction

[0052] In the prior art, the global Retinex video image processing method assumes that the illumination components of the image pixels are the same, but in fact the illumination components of different pixels are slightly different, and the global Retinex video image processing method cannot calculate the actual Reflection differences lead to distorted video images after processing, and the contrast is low and unclear.

[0053] In order to solve the above problems, the technical solution adopted in the embodiment of the present invention can obtain an enhanced image with constant color and clearness after processing the real-time image collected by the rear view camera of the vehicle during the parking process of the vehicle.

[0054] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0055]figur...

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Abstract

Provided are a video image enhancement method and device, and a parking assisting system. The method comprises extracting a gray level component image in original images collected by a camera in real time; according to relative light and shade relations between pixel points of the gray level component image and the pixel points in the gray level component image after Gaussian smoothing, carrying out gray level correction on the pixel points of the gray level component image; and compiling the gray level component image after the gray level correction, thus to obtain an enhanced image. According to the above technical scheme, the gray level of the pixel points of the gray level component image is compared with that of the pixel points of the image after Gaussian smoothing, and gray level correction is carried out on the gray level component image, such that the image obtained after enhancement is constant in color and high in contract ratio and definition.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a video image enhancement method and device, and a parking assistance system. Background technique [0002] With the improvement of people's living standards, cars have entered the homes of ordinary people. The popularity of automobiles has brought many troubles and inconveniences to people's lives while making things convenient for people to travel. In recent years, there have been many major accidents related to multi-vehicle collisions under low-visibility weather conditions, resulting in serious losses of national property and people's lives and properties. [0003] In order to solve the problems referred to above, the prior art adopts the method of collecting road images ahead by the vehicle-mounted camera, and processing the collected video images by global Retinex (the abbreviation of retina "Retina" and cerebral cortex "Cortex") video image processing method. I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00
Inventor 宋杰静李小玉陈琳
Owner SAIC MOTOR
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