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Three-dimensional color space L*a*b* measurement and quantification method for color of grape wine

A quantitative method, wine technology, applied in the field of detection, can solve the problems of human subjective influence factors, etc., achieve the effect of eliminating information exchange barriers, avoiding differences in color vision, and improving analysis accuracy

Inactive Publication Date: 2017-10-20
INSPECTION & QUARANTINE TECH CENT OF QINHUANGDAO ENTRY EXIT INSPECTION & QUARANTINE BUREAU
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Problems solved by technology

However, the current tasting of wine requires a series of harsh conditions such as bright light source, white indoor setting, suitable temperature and humidity, and is greatly influenced by human subjective factors. Conditions, methods that can objectively detect and analyze wine

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  • Three-dimensional color space L*a*b* measurement and quantification method for color of grape wine
  • Three-dimensional color space L*a*b* measurement and quantification method for color of grape wine
  • Three-dimensional color space L*a*b* measurement and quantification method for color of grape wine

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Embodiment Construction

[0028] The present invention will be described in detail below in conjunction with specific embodiments.

[0029] figure 1 for CIE L * a * b * Color space diagram. Such as figure 1 Shown, CIE 1976 (L * a * b * ) color space is a three-dimensional color description system, in the color range, L * a * b * mode is the most complete color description mode. In CIE L * a * b * color space, L *is the lightness in the color space, a * is the red / green magenta index value in the color space, b * is the yellow / blue magenta index value in the color space, C * is the chroma value of the color space, h * is the hue angle value of the color space. Any color has a corresponding L * 、a * , b * values, and vice versa, in CIE 1976(L * a * b * ) each point in the color space corresponds to a color.

[0030] Use W100 red wine tester to measure the color of wine samples. The specific measurement operation can be described as: provide a standard light source D65, make the ...

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Abstract

The invention provides a three-dimensional color space L*a*b* measurement and quantification method for the color of grape wine. The color of the grape wine can be digitally described by using the color space principle CIE 1976 (L*a*b*); the three physical variables L* value, a* value and b* value are combined to mark the color of any grape wine. Compared with an existing grading method, the grading method for the color of the grape wine, which is provided by the invention, has the advantage that by use of values of a 'three-dimensional digital coordinate' of the color of the grape wine, the combination of three-dimensional parameters replaces a conventional expression method of 'visual impression, thinking and judgment and language description' of the color.

Description

technical field [0001] The present invention relates to the technical field of detection, more specifically, the present invention relates to a method based on CIE 1976 (L * a * b * ) L of the three-dimensional parameters of the wine color in the uniform color space * a * b * Measurement Quantification Methods. Background technique [0002] With its beautiful body, pleasing color, and remarkable nutritional and health benefits, wine has become a healthy drink that consumers prefer more and more. Color is one of the important quality indicators in wine tasting and grading. It includes information such as anthocyanin and phenolic content, storage age, grape variety, quality and flavor, etc. The quality of wine color will directly affect its overall quality. Evaluation. [0003] Generally, according to the color of wine, it can be divided into the following three types: red wine, the color of the wine is purple red, ruby ​​red, garnet, etc.; white wine, the color of the ...

Claims

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Application Information

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IPC IPC(8): G01N21/31
CPCG01N21/31
Inventor 王飞张进杰张昂刘烨王海洋
Owner INSPECTION & QUARANTINE TECH CENT OF QINHUANGDAO ENTRY EXIT INSPECTION & QUARANTINE BUREAU
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