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Device and method for testing fabric color

A color and fabric technology, applied in the field of color analysis, to solve problems such as poor color rendering

Inactive Publication Date: 2010-07-28
THE HONG KONG RES INST OF TEXTILES & APPAREL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The color rendering of conventional desktop scanners is relatively poor

Method used

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  • Device and method for testing fabric color
  • Device and method for testing fabric color
  • Device and method for testing fabric color

Examples

Experimental program
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Embodiment Construction

[0048] Figure 1-3 Shown is a schematic diagram of the composition of the system for characterizing fabric color through a scanner according to the present invention. The system includes: figure 1 The personal computer shown and the scanner connected to the personal computer, figure 2 Fabric template with color card swatches shown and image 3 153 standard fabric color samples shown.

[0049] A fabric template with color swatches is used to calibrate the scanner. The polynomial regression characterization technique uses the standard X-write color card to evaluate the fabric color, which will be described in detail below when deriving the results of the independent color CIE parameters of the equipment when connecting three typical scanners to the spectrophotometer under different lighting conditions . But it is not appropriate to use the obtained characterization model to confirm the CIE color coordinates of solid-colored fabrics.

[0050] Therefore, it is recommended t...

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Abstract

The invention relates to a device and method for testing the fabric color by using a scanner. The normal fabric is subjected to the scanner characteristic by using the fabric standard based on the standard color card. According to the invention, in the presence of multiple light sources and a complex observer, a CIE device independent color coordinate can be obtained according to the RGB value of the scanned measured area (ROI) without expensive equipment such as a colorimeter, a spectrophotometer and a multiple-light-source camera. The fabric color analyzing system is suitable for different materials such as wool, silk or other natural or synthetic fabrics, after a user defines an allowable 2.color difference, the color classification and automatic color matching is conducted on the different materials according to the information in a database. The characterization method can be used in a number of commercial flatbed scanners, the device for testing the fabric color, taken as a quality testing tool in the surface color industrial application field, is used for testing the quality of fabric, picture, paper, leather, plastic, printed matters and the like.

Description

technical field [0001] According to the nonlinear color model, the invention can accurately obtain the equipment independent color coordinates from the scanned fabric image, so as to perform color analysis. To characterize commercial scanners, only a standard fabric-based model is needed, without traditional expensive equipment such as colorimeters, spectrophotometers, multi-light source cameras, etc. The method and system can be used as a quality control tool in the surface color industry, such as testing the quality of fabrics, paints, paper, leather, plastics and printed matter. Background technique [0002] The colors in RGB format acquired by the scanner are dependent on the type of illumination and the properties of the optical filters that separate the visible wavelengths into color components. The color rendering of conventional desktop scanners is relatively poor. All common imaging systems, including digital cameras, scanners, and CRTs, use a similar 3-band color...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J3/46G06T7/40
CPCD06H3/08
Inventor 阿思曼达·克汗杜尔白求智胡金莲辛斌杰
Owner THE HONG KONG RES INST OF TEXTILES & APPAREL
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