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Image white balance processing method, device and camera thereof

A white balance and image technology, applied in the field of image processing, can solve the problems of inaccurate judgment of color temperature and inaccurate image results.

Active Publication Date: 2012-09-05
HANGZHOU HIKVISION DIGITAL TECH
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  • Abstract
  • Description
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Problems solved by technology

[0010] The technical problem to be solved by the present invention is to provide an image white balance processing method to solve the technical problem in the prior art that the result of white balance processing on the image is not accurate due to the inaccurate judgment of the color temperature. Further, it can also Optimize video processing effect

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  • Image white balance processing method, device and camera thereof
  • Image white balance processing method, device and camera thereof
  • Image white balance processing method, device and camera thereof

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Embodiment Construction

[0071] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0072] The invention is applicable to numerous general purpose or special purpose computing device environments or configurations. For example: personal computer, server computer, handheld or portable device, tablet type device, multiprocessor device, distributed computing environment including any of the above devices or devices, etc.

[0073] The invention may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. The invention may also be practiced in distributed computing environments...

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Abstract

The invention provides an image white balance processing method, device and camera thereof. The method includes that: final weight value of each pixel point in the original image to be processed is calculated according to initial weight value in a preset colour temperature weight list; the colour temperature weight list is used for storing correspondence of each pixel point passing through a markwith the initial weight value thereof; rgb channel gain of the original image is calculated according to the final weight value; and white balance adjustment is carried out on the original image according to the rgb channel gain. The method, device and camera in the embodiment of the invention can solve the technical problem that the result of white balance processing on image is not accurate enough as judging on colour temperature is not accurate, and further video processing effect can be optimized.

Description

technical field [0001] The invention relates to the field of image processing, in particular to an image white balance processing method, device and camera. Background technique [0002] Under different lighting environments, the imaging of the camera will have certain characteristics that deviate from the original image. For example, at a low color temperature, the image of an object will be reddish, while at a high color temperature, it will be blue. Color temperature is a quantitative description of the color of the light source, and its unit is Kelvin (Kelvin), symbol K. Due to the evolution of tens of millions of years, the human eye has a strong ability to adapt to objects under different lighting conditions, that is, under different color temperatures, the color hue seen will not change with the color temperature, which is called constant color. Sex (color constancy). The white balance processing of the image is to correct the imaging deviation caused by the color t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N9/73H04N5/232
Inventor 吴磊磊范蒙宋其毅贾永华胡扬忠邬伟琪
Owner HANGZHOU HIKVISION DIGITAL TECH
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