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Color restoration method based on illumination compensation in tongue picture analysis

A lighting compensation and color technology, applied in the computer field to improve efficiency, ensure accuracy, and promote development

Active Publication Date: 2018-02-13
TIANJIN MEDVALLEY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0009] The example of the present invention provides a method of color restoration after taking pictures in tongue image analysis to solve the problem of restoring the tongue map to the color and brightness of the tongue map close to natural light after taking pictures of the tongue body in the prior art

Method used

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  • Color restoration method based on illumination compensation in tongue picture analysis
  • Color restoration method based on illumination compensation in tongue picture analysis
  • Color restoration method based on illumination compensation in tongue picture analysis

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Embodiment Construction

[0031] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0032] The example of the present invention provides a kind of separation of brightness and color, and establishes the mapping function between the brightness value array and the standard brightness value array between the partitions as the care compensation function, and according to the color color card image color value and the color color card standard color value The corresponding relationship between them establishes the color restoration equation, and dynamically obtains the optimal solution as the color restoration function. Combined with the light compensation function to establish a feasible color restoration method, such as figure 1 shown, including the following steps:

[0033] Step 1: Establish the conversion matrix of two color spaces of RGB and YUV;

[0034] Step 2: Convert the grayscale color card image ( figure 2 ) from RG...

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Abstract

The invention relates to the technical field of computers, in particular to a method for picture illumination compensation and color restoration under the specific environment. The method comprises the steps of building an illumination compensation function on the basis of a brightness array, building a multiple linear regression color restoration function, and meanwhile introducing a dynamic weighting coefficient by considering the uncertain influence of the environmental factor. According to the restoration function and the color space characteristics, dimension reduction operation is performed on the restoration function, and the best solution is obtained. The method is applied to tongue pictures and face pictures obtained through photographing, pictures closer to true colors can be obtained, and the preparation is made for further tongue picture analysis.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to image color restoration in a specific environment. Background technique [0002] Diagnostics of traditional Chinese medicine is a discipline spanning basic and clinical. It makes the symptoms and signs correspond to syndrome-type diseases one by one, and is the primary way for doctors to diagnose and treat diseases. Inspection is the first of the four diagnostic methods of traditional Chinese medicine, "look, smell, ask and feel". It is a diagnosis that Chinese medicine begins to make when seeing a patient. [0003] Tongue diagnosis is often mentioned in inspection and can be said to be the most characteristic diagnostic method of traditional Chinese medicine. Tongue diagnosis fully embodies the principle of disease recognition in TCM diagnostics. TCM believes that the human body is an indivisible organic whole, and every part of the body is closely related to the whole or oth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00G06T5/20G06T5/40G06T7/90
CPCG06T5/20G06T5/40G06T2207/10004G06T5/00G06T5/70
Inventor 董玉舒赵亮
Owner TIANJIN MEDVALLEY TECH CO LTD
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