CN109671113A - A kind of color textile fabric based on image technique is measured color method - Google Patents
A kind of color textile fabric based on image technique is measured color method Download PDFInfo
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- CN109671113A CN109671113A CN201910013945.XA CN201910013945A CN109671113A CN 109671113 A CN109671113 A CN 109671113A CN 201910013945 A CN201910013945 A CN 201910013945A CN 109671113 A CN109671113 A CN 109671113A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/40—Analysis of texture
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/90—Determination of colour characteristics
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10004—Still image; Photographic image
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10024—Color image
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30108—Industrial image inspection
- G06T2207/30124—Fabrics; Textile; Paper
Abstract
The invention belongs to computers of weaving to be measured color technical field, and be related to a kind of color textile fabric based on image technique is measured color method.Steps are as follows for this method: the first step, takes pictures to whole color textile fabric material object samples and whole monochromatic fibers and measures its color, extract texture information and colouring information and be integrally formed feature vector.Second step by the texture information of sample color textile fabric and colouring information and is integrally formed feature vector；Third step, the maximum color textile fabric of similarity value and sample color textile fabric are subjected to Colorimetry, according to the ratio of Δ E1 and setting value T, determines using progress spectral match between color textile fabric and monochromatic fiber or carry out spectral match using monochromatic blended fiber ratio example is adjusted in the maximum color textile fabric of similarity value.The method of the present invention is simple, convenient, fast, avoids the cumbersome of light measurement color measurement method, while can be reserved for the image of color textile fabric and monochromatic fiber, convenient for the verification and examination of result.
Description
Technical field
The invention belongs to computers of weaving to be measured color technical field, be related to a kind of survey of color textile fabric based on image technique
Color matching method.
Background technique
Color textile fabric is that various colored fibres mix according to a certain percentage, by spinning and weaving, so that being formed has centainly
The fabric of color character and mannerism is different from traditional dyed cloth, in processing technology, resource consumption and to environment
Influence in terms of will be better than traditional dyeing industry, and there is multicolour, hand using color textile fabric made of different colours fiber
Feel the advantages that soft, surface is plentiful, added value is high.Color textile fabric is all the fashion at home and abroad at present, and domestic consumption group is also just
Gradually growing, development prospect is preferable.
However, Se Fang enterprise just needs to know that first sample color is spun when carrying out the textile fabric actual production of sample color at present
The relative scale and content of the monochromatic fiber of various different colors in fabric.Under normal circumstances, after color textile fabric sample all into
The analysis of row sample is compared by artificial ravel, colored fibre and searches, blended fiber ratio pair and plays the operations such as sample and come
The color matching of sample color textile fabric and pre- weaving, and see whether it is variant with sample fabric, if so, then returning to continue fiber again
Color matching and beat sample, the process is complex, inefficiency and accuracy rate are lower.This Man-made Color Matching method heavy workload, consumption
When, higher cost, and subjectivity is strong, and color matching personnel are easy by external environment, such as mood, light, weather many factors
Influence, color matching accuracy not can determine that, and to color matching personnel working experience have higher requirement.
With the development of computer technology, be measured a kind of hair that color is increasingly becoming the color matching of color textile fabric using computer
Exhibition trend.But there is not the report of the color matching for color textile fabric also at present, and there is an urgent need to a kind of accurate and effective colors for enterprise
Textile fabric color matching method substitutes current Man-made Color Matching method.
The present invention is on the basis of enterprise's coloured textile fabric color matching data bank, by obtaining color textile fabric image and monochrome
Fibre image digitizes existing data bank, and with the color obtained from color textile fabric image and monochromatic fibre image or
Characteristic information saves in the database together, in conjunction with image retrieval technologies, realizes kinds of fibers and content in sample color textile fabric
Determination.
Summary of the invention
The present invention provides a kind of color textile fabric based on image technique is measured color method, realizes fiber in color textile fabric
The determination of type and content, the i.e. color matching of color textile fabric.
Technical scheme is as follows:
A kind of color textile fabric based on image technique is measured color method, and steps are as follows:
The first step, using image method color measurement instrument, to whole color textile fabric material object samples and all, monochromatic fiber is taken pictures
And its color is measured, the colouring information of each sample in kind and monochromatic fiber is obtained, color textile fabric and monochromatic fiber face are established
Color information database K1, database K1 include the type and mixed proportion of each monochromatic fiber of color textile fabric；By acquisition of taking pictures
Color textile fabric image establishes color textile fabric image library K2；It is extracted in each color textile fabric image using image characteristic point detection algorithm
Texture information and colouring information and be integrally formed feature vector, the feature vector of coloured textile fabric form color textile fabric image
Characteristic value data library K3；
Preferably, the image method color measurement instrument is the image color measurement system built using camera and standard sources
System can carry out colour examining of taking pictures to color textile fabric, obtain the colouring information of color textile fabric；
The colouring information includes spectral reflectivity, L, a, b value, R, G, B value and X, Y, Z value；
Preferably, the image characteristic point detection algorithm includes histogram method, LBP local binary pattern operator, color
Square, Haar feature, sift feature extraction algorithm etc.；
Sample color textile fabric is taken pictures and measures its color, obtains the colouring information of sample color textile fabric by second step,
The texture information and colouring information of extraction sample color textile fabric image are simultaneously integrally formed feature vector；
Third step, fabric retrieval:
By feature vector in the feature vector of sample color textile fabric image and color textile fabric image feature value database K3 into
The maximum color textile fabric of similarity value and sample color textile fabric are carried out Colorimetry, obtain color difference Δ E1 by row similarity calculation,
When Δ E1 is less than setting value T, then the fibre furnish using the fibre furnish in the fabric as sample color textile fabric；
Preferably, the similarity calculation includes using euclidean distance method, manhatton distance method, Minkowski distance
Method etc.；
4th step, spectral match:
When Δ E1 is greater than the set value T, using progress spectral match between color textile fabric and monochromatic fiber or similarity is used
It is worth in maximum color textile fabric and adjusts monochromatic blended fiber ratio example progress spectral match；
Described carries out spectral match using between color textile fabric and monochromatic fiber, will be similar when Δ E1 is greater than the set value T
The spectral reflectance of the monochromatic fiber of each of the spectral reflectivity of the maximum color textile fabric of angle value and monochromatic fiber color information bank
Rate carries out mixing color matching by different proportion, obtains new spectral reflectivity and new Lab value, and new Lab value and sample color are spun
The Lab value of fabric carries out Colorimetry, obtains color difference Δ E2, when Δ E2 is less than setting value T, then chooses the maximum color of similarity value
Scheme of colour of the mixed proportion of textile fabric and monochromatic fiber as sample color textile fabric, i.e., it is original monochromatic fine in the color textile fabric
Dimension completes the color matching of sample color textile fabric along with a kind of new monochromatic fiber；
Preferably, when Δ E2 is greater than the set value T, then utilization monochromatic fiber of more than two kinds and the maximum color of similarity value are spun
Fabric carries out mixing color matching, calculates color difference until being less than setting value T, completes the color matching of sample color textile fabric；
Monochromatic blended fiber ratio example is adjusted in the maximum color textile fabric of the similarity value and carries out spectral match, as Δ E1
When being greater than the set value T, the blending rate of original monochromatic fiber in the maximum color textile fabric of similarity value is adjusted, new spectrum is obtained
The Lab value of new Lab value and sample color textile fabric is carried out color difference comparison, calculates color difference until small by reflectivity and new Lab value
In setting value T, scheme of colour of the mixed proportion of monochromatic fiber each at this time as sample color textile fabric is chosen, sample color is completed and spins
The color matching of fabric.
Preferably, the Colorimetry be calculated using CMC (2:1) or CIE DE2000 colour difference formula new Lab value with
Color difference between the Lab value of sample color textile fabric；
Preferably, the mixing color matching is to carry out spectral reflectivity to different fibers using Kubelka-Munk formula to melt
It closes, forms new spectral reflectivity, be then converted to Lab value.
Beneficial effects of the present invention:
(1) colouring information based on image method measurement color textile fabric and monochromatic fiber, method is simple, convenient, fast, avoids
Light measurement color measurement method it is cumbersome, while can be reserved for the image of color textile fabric and monochromatic fiber, convenient for result verification and
Examination；
(2) in the color textile fabric based on image retrieval fiber color matching, first with what is extracted from color textile fabric image
Being mutually matched between characteristic value selects the fabric image most like with sample fabric image, and then according to most like figure
As carrying out fiber color matching.This is a kind of method of indirect fiber color matching, avoids the inaccuracy directly matched colors, and be utilized
Accurate fiber prescription in coloured textile fabric, keeps result more credible.
Detailed description of the invention
Fig. 1 is measured color method flow chart based on the color textile fabric of image technique.
Fig. 2 image method color measurement instrument equipment schematic diagram.
In figure, 1 camera；2 standard sources equipment；3 standard light boxs；4 color textile fabric material object samples；5 switchable objective tables；6
The color textile fabric image of shooting；7 computer display screens；8 hosts.
Specific embodiment
Yi Xiajiehejutishishili,Bing Canzhaofutu,Dui Benfamingjinyibuxiangxishuoming.
It is an object of the invention to the determinations for kinds of fibers and content in color textile fabric, the i.e. color matching of color textile fabric, mention
For a kind of indirect and effective method.
As a preferred embodiment, it with reference to Fig. 1, is measured for the color textile fabric based on image technique of the preferred embodiment of the present invention
Color method flow chart.
Firstly, with reference to Fig. 2, being spun using image method color measurement instrument to whole colors using image method color measurement instrument
Fabric material object sample and whole monochromatic fibers take pictures and measure its color, obtain the color of each sample in kind and monochromatic fiber
Information, establishes color textile fabric and monochromatic fiber color information database K1, and database K1 includes each monochromatic fiber of color textile fabric
Type and mixed proportion；The color textile fabric image for acquisition of taking pictures is established into color textile fabric image library K2；Using image characteristic point
Detection algorithm extracts texture information in each color textile fabric image and colouring information and is integrally formed feature vector, the coloured spinning of institute
The feature vector of fabric forms color textile fabric image feature value database K3；
Secondly, obtaining the image and colouring information of sample color textile fabric image using image method color measurement instrument, and adopt
With feature extracting method identical with the library K3, i.e., texture information and colouring information are extracted using color moment, including single order
Square (mean value, mean), second moment (variance, viarance) and third moment (gradient, skewness) etc..Its formula is expressed as follows:
Wherein, μi, σi, ζiRespectively represent first moment, second order moment and third moment；Pi,jIt indicates j-th of color image
I-th of color component of pixel；N indicates the number of pixels in image.
Finally, finding and most being connect with its characteristic value according to the characteristic value data library K3 of the sample color textile fabric image extracted
Close color textile fabric sample A, similarity ejCalculating use euclidean distance method, formula expression are as follows:
Wherein: μInputi, σInputi,Indicate first moment, second order moment and third rank in sample color textile fabric image
The characteristic value of square；μDatabasei, σDatabasei, ζDatabaseiIt respectively indicates in the K3 of characteristic value data library in coloured textile fabric image
The characteristic value of first moment, second order moment and third moment, j represent serial number.
According to the A fabric found, the colouring information of its corresponding color in database K1 is extracted, calculate A fabric and is come
CMC (2:1) color difference Δ E1 between sample color textile fabric, using calculation formula are as follows:
In formula, Δ L ', Δ C ', Δ H ' are luminance difference, saturation deficit and the hue difference being calculated by CIELAB formula respectively,
KL、Kc、KHFor correction factor；In cielab color space, CMC (2:1) formula defines the vision tolerance around reference colour
For ellipse, SL、SC、SHRespectively represent elliptical semiaxis.
When Δ E1 is less than setting value T=1.2, then the fiber using the fibre furnish in A fabric as sample color textile fabric
Proportion, conversely, selecting following two method, any one is handled:
Method one: by the light of the monochromatic fiber of each of the most spectral reflectivity of A fabric and monochromatic fiber color information bank
It composes reflectivity and carries out mixing color matching by different proportion, spectral reflectivity is carried out to different fibers using Kubelka-Munk theory and is melted
It closes, forms new spectral reflectivity, be then converted to Lab value, new reflectivity and new Lab value are obtained, then by acquisition
The calculating that the Lab value of new Lab value and sample color textile fabric carries out color difference Δ E2 chooses color difference if it is less than setting value 1.2
Scheme of colour of the spectral reflectivity mixed proportion of A fabric and monochromatic fiber when minimum as sample color textile fabric, i.e. A fabric
In original monochromatic fiber complete the color matching of sample color textile fabric along with a kind of new monochromatic fiber, if Δ E2 is greater than the set value
1.2, then it carries out mixing color matching with A fabric using fiber of more than two kinds, and calculate color difference until meeting color difference requirement.
Method two: the blending rate of original monochromatic fiber in the adjustment maximum color textile fabric of similarity value obtains new light
Compose reflectivity and new Lab value, the Lab value of new Lab value and sample color textile fabric be subjected to color difference comparison, calculate color difference until
Less than setting value T, scheme of colour of the mixed proportion of monochromatic fiber each at this time as sample color textile fabric is chosen, sample color is completed
The color matching of textile fabric.
Claims (10)
1. a kind of color textile fabric based on image technique is measured color method, which is characterized in that steps are as follows:
The first step, using image method color measurement instrument, to whole color textile fabric material object samples and all, monochromatic fiber is taken pictures and is surveyed
Its color is measured, the colouring information of each sample in kind and monochromatic fiber is obtained, establishes color textile fabric and monochromatic fiber color letter
Database K1 is ceased, database K1 includes the type and mixed proportion of each monochromatic fiber of color textile fabric；The color for acquisition of taking pictures is spun
Fabric image establishes color textile fabric image library K2；Line in each color textile fabric image is extracted using image characteristic point detection algorithm
Reason information and colouring information simultaneously be integrally formed feature vector, institute coloured textile fabric feature vector formation color textile fabric characteristics of image
Value Data library K3；
The colouring information includes spectral reflectivity, L, a, b value, R, G, B value and X, Y, Z value；
Sample color textile fabric is taken pictures and measures its color, obtained the colouring information of sample color textile fabric, extract by second step
The texture information and colouring information of sample color textile fabric image are simultaneously integrally formed feature vector；
Third step, fabric retrieval:
The feature vector of sample color textile fabric image and feature vector in color textile fabric image feature value database K3 are subjected to phase
It is calculated like degree, the maximum color textile fabric of similarity value and sample color textile fabric is subjected to Colorimetry, color difference Δ E1 is obtained, works as Δ
E1 is less than setting value T, then the fibre furnish using the fibre furnish in the fabric as sample color textile fabric；
4th step, spectral match:
When Δ E1 is greater than the set value T, most using progress spectral match between color textile fabric and monochromatic fiber or using similarity value
Monochromatic blended fiber ratio example is adjusted in big color textile fabric carries out spectral match；
Described carries out spectral match using between color textile fabric and monochromatic fiber, when Δ E1 is greater than the set value T, by similarity value
The spectral reflectivity of the monochromatic fiber of each of the spectral reflectivity of maximum color textile fabric and monochromatic fiber color information bank is pressed
Different proportion carries out mixing color matching, obtains new spectral reflectivity and new Lab value, by new Lab value and sample color textile fabric
Lab value carry out Colorimetry, obtain color difference Δ E2, when Δ E2 is less than setting value T, then chooses the maximum color of similarity value and spin face
Scheme of colour of the mixed proportion of material and monochromatic fiber as sample color textile fabric, i.e., original monochromatic fiber is again in the color textile fabric
In addition a kind of new monochromatic fiber completes the color matching of sample color textile fabric；
When Δ E2 is greater than the set value T, then mixed using monochromatic fiber of more than two kinds with the maximum color textile fabric of similarity value
Color matching calculates color difference until being less than setting value T, completes the color matching of sample color textile fabric；
Monochromatic blended fiber ratio example is adjusted in the maximum color textile fabric of the similarity value and carries out spectral match, when Δ E1 is greater than
When setting value T, the blending rate of original monochromatic fiber in the maximum color textile fabric of similarity value is adjusted, new spectral reflectance is obtained
The Lab value of new Lab value and sample color textile fabric is carried out color difference comparison, calculates color difference and set until being less than by rate and new Lab value
Definite value T chooses scheme of colour of the mixed proportion of monochromatic fiber each at this time as sample color textile fabric, completes sample color textile fabric
Color matching.
2. the color textile fabric based on image technique is measured color method as described in claim 1, which is characterized in that in the first step,
The image method color measurement instrument is the image chromatic measuring system built using camera and standard sources, can to color textile fabric into
Capable colour examining of taking pictures, obtains the colouring information of color textile fabric.
3. the color textile fabric based on image technique is measured color method as claimed in claim 1 or 2, which is characterized in that the first step
In, the image characteristic point detection algorithm include histogram method, LBP local binary pattern operator, color moment, Haar feature and
Sift feature extraction algorithm.
4. the color textile fabric based on image technique is measured color method as claimed in claim 1 or 2, which is characterized in that third step
In, the similarity calculation includes euclidean distance method, manhatton distance method, Minkowski Furthest Neighbor.
5. the color textile fabric based on image technique is measured color method as claimed in claim 3, which is characterized in that in third step,
The similarity calculation includes euclidean distance method, manhatton distance method, Minkowski Furthest Neighbor.
6. the color textile fabric based on image technique as described in claims 1 or 2 or 5 is measured color method, which is characterized in that the 4th
In step, the Colorimetry is to calculate new Lab value and sample color using CMC (2:1) or CIE DE2000 colour difference formula to spin face
Color difference between the Lab value of material.
7. the color textile fabric based on image technique is measured color method as claimed in claim 3, which is characterized in that in the 4th step,
The Colorimetry is that new Lab value and sample color textile fabric are calculated using CMC (2:1) or CIE DE2000 colour difference formula
Color difference between Lab value.
8. the color textile fabric based on image technique is measured color method as claimed in claim 4, which is characterized in that in the 4th step,
The Colorimetry is that new Lab value and sample color textile fabric are calculated using CMC (2:1) or CIE DE2000 colour difference formula
Color difference between Lab value.
9. the color textile fabric based on image technique as described in claims 1 or 2 or 5 or 7 or 8 is measured color method, feature exists
In in the 4th step, the mixing color matching is to carry out spectral reflectivity fusion, shape to different fibers using Kubelka-Munk formula
The spectral reflectivity of Cheng Xin is then converted to Lab value.
10. the color textile fabric based on image technique is measured color method as claimed in claim 3, which is characterized in that in the 4th step,
The mixing color matching is to carry out spectral reflectivity fusion to different fibers using Kubelka-Munk formula, and it is anti-to form new spectrum
Rate is penetrated, Lab value is then converted to.
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Cited By (3)
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| CN112649447A (en) * | 2020-12-30 | 2021-04-13 | 浙江久大纺织科技有限公司 | Fabric printing detection method based on color matrix |
| CN113591940A (en) * | 2021-07-12 | 2021-11-02 | 华南师范大学 | Multi-model fusion method, device, equipment and medium for printing, dyeing and color matching |
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| CN111272673A (en) * | 2020-03-23 | 2020-06-12 | 泸州麦穗智能科技有限公司 | Non-pure-color cloth color difference detection system and detection method |
| CN112649447A (en) * | 2020-12-30 | 2021-04-13 | 浙江久大纺织科技有限公司 | Fabric printing detection method based on color matrix |
| CN113591940A (en) * | 2021-07-12 | 2021-11-02 | 华南师范大学 | Multi-model fusion method, device, equipment and medium for printing, dyeing and color matching |
| CN113591940B (en) * | 2021-07-12 | 2023-09-26 | 华南师范大学 | Multi-model fusion method, device, equipment and medium for printing and dyeing color matching |
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