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Image processing method and camera

An image processing and camera technology, applied in the field of image processing, can solve problems such as image smearing

Active Publication Date: 2020-12-08
ZHEJIANG DAHUA TECH CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] Embodiments of the present invention provide an image processing method and a camera, which are used to solve the problem of image smear in the prior art

Method used

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  • Image processing method and camera

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Embodiment Construction

[0082] In order to make the purpose, technical solutions and advantages of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0083] In the case of weak light intensity, the noise of the image actually obtained by the video surveillance equipment will become more obvious, resulting in a decrease in the definition of the image. In order to reduce the impact of noise on the image, it is necessary to perform noise reduction processing on the image. However, if the light intensity is weak, when the video surveillance equipment acquires images, the shooting parameters of the video surveillance equipment are changing. At this time, the image obtained by the camera at this time has a smear phenomenon in the entire image, that is, there is obvious noise at the end of the image, and the current noise reduction p...

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Abstract

The invention discloses an image processing method and a camera, which are used to solve the problem of image smear in the prior art. The image processing method includes: obtaining the value of the exposure parameter taken by the camera, wherein the exposure parameter is used to indicate the lighting environment taken by the camera, including one or more of the shutter value, aperture value and gain value If the value indicates a low-light environment, obtain the value of the shooting parameter of the camera, wherein the ambient brightness of the low-light environment is less than or equal to a first preset threshold, and the shooting parameter includes the The shooting angle and / or focal length multiple of the camera; if the shooting parameter changes during the shooting process of the camera, the adjustment value of the image parameter is determined according to the shooting parameter, wherein the image parameter includes a noise reduction value and / or or sharpness value; adjust the image captured by the camera according to the adjustment value.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to an image processing method and a camera. Background technique [0002] In the case of weak light intensity, if the video surveillance equipment is acquiring images, the shooting parameters of the video surveillance equipment are changing; , at this time the entire image obtained by the camera is moving, then the current noise reduction algorithm will also judge the static object in the image as dynamic, so as to perform temporal noise reduction processing on the static object in the image, This will inevitably lead to smear phenomenon at the end of the image frame, which will lead to smear phenomenon in the entire image frame. Therefore, even if the noise reduction process is adopted, the entire image cannot be clearly presented. [0003] It can be seen that at present, when the light intensity of the current camera is low, and the gimbal rotates or the magnification ch...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/217
CPCH04N25/62
Inventor 邵一轶赵军
Owner ZHEJIANG DAHUA TECH CO LTD
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