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A low-illuminance image processing method and device

A processing method and low-illumination technology, applied in the field of image processing, can solve problems such as low brightness, difficult processing, and inability to meet the requirements of low-illuminance image processing, and achieve the effect of precise processing

Active Publication Date: 2019-03-22
SHENZHEN ANGELL TECH
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the case of low illumination, the brightness is very low, and it faces many different scenes and different environments, which makes it more difficult to process. The above image processing methods can no longer meet the processing requirements for low illumination images.

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  • A low-illuminance image processing method and device
  • A low-illuminance image processing method and device
  • A low-illuminance image processing method and device

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Embodiment Construction

[0037] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0038] The main realization idea of ​​the present invention is: according to the correlation value of the normal illuminance interval, the function used to calculate the adjustment coefficient of each RGB component value of the low illuminance image is fitted. The function takes the brightness value as an input variable, and takes the adjustment coefficient corresponding to each component of RGB under the brightness value as an output variable; each component of the RGB corresponds to an adjustment coefficient, that is, corresponds to an output variable respectively, that is, corresponding to a fun...

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Abstract

The invention belongs to the technical field of image processing and provides a low-illumination image processing method, which includes: step S1, fitting each RGB component used to calculate the low-illumination image according to the relevant values ​​in the normal illumination interval [YB, YA]. A function of the adjustment coefficient, each of which uses the brightness value as the input variable, and uses the adjustment coefficient of each RGB component value under the brightness value as the output variable; step S2, when the brightness value is in the low illumination interval [YC, YB], Calculate the corresponding adjustment coefficients of each RGB component according to each fitted function; step S3, adjust the RGB component values ​​of the low-illumination image according to the calculated adjustment coefficient values. The method provided by the present invention corresponds to low illumination conditions and normal illumination conditions, and can more accurately process images in low illumination conditions.

Description

technical field [0001] The invention belongs to the technical field of image processing, and in particular relates to a low-illuminance image processing method and device. Background technique [0002] Medical detectors are generally equipped with sensors for image acquisition, and the images acquired by the sensors need to be processed by an image processor to achieve the effect that can be viewed by users. Process such as figure 1 shown. After input, the RAW domain image data is processed by the RAW domain image processing unit 11 , and the processed RAW domain image data is sent to the Demosaic calculation unit 12 . The Demosaic calculation unit 12 converts the RAW domain image data into RGB domain image data, and sends the converted RGB domain image data to the RGB domain image processing unit 13 . The RGB domain image processing unit 13 processes the RGB domain image data, and sends the processed RGB domain image data to the RGB to YUV calculation unit 14 . The RGB-...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/00
CPCG06T2207/10024G06T5/92
Inventor 成富平姜维
Owner SHENZHEN ANGELL TECH