WO2002013136A3 - Method and system for matching a surface color - Google Patents

Method and system for matching a surface color Download PDF

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Publication number
WO2002013136A3
WO2002013136A3 PCT/US2001/022692 US0122692W WO0213136A3 WO 2002013136 A3 WO2002013136 A3 WO 2002013136A3 US 0122692 W US0122692 W US 0122692W WO 0213136 A3 WO0213136 A3 WO 0213136A3
Authority
WO
WIPO (PCT)
Prior art keywords
captured
color
target color
matching
test card
Prior art date
Application number
PCT/US2001/022692
Other languages
French (fr)
Other versions
WO2002013136A2 (en
Inventor
Richard Jeffrey Chasen
Original Assignee
Richard Jeffrey Chasen
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Richard Jeffrey Chasen filed Critical Richard Jeffrey Chasen
Priority to AU2001276994A priority Critical patent/AU2001276994A1/en
Priority to CA002419053A priority patent/CA2419053A1/en
Priority to EP01954770A priority patent/EP1325462A2/en
Publication of WO2002013136A2 publication Critical patent/WO2002013136A2/en
Publication of WO2002013136A3 publication Critical patent/WO2002013136A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/46—Colour picture communication systems
    • H04N1/56—Processing of colour picture signals
    • H04N1/60—Colour correction or control
    • H04N1/6083—Colour correction or control controlled by factors external to the apparatus
    • H04N1/6086—Colour correction or control controlled by factors external to the apparatus by scene illuminant, i.e. conditions at the time of picture capture, e.g. flash, optical filter used, evening, cloud, daylight, artificial lighting, white point measurement, colour temperature
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
    • G01J3/463—Colour matching
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
    • G01J3/52—Measurement of colour; Colour measuring devices, e.g. colorimeters using colour charts
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
    • G01J3/52—Measurement of colour; Colour measuring devices, e.g. colorimeters using colour charts
    • G01J3/524—Calibration of colorimeters
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/00—2D [Two Dimensional] image generation
    • G06T11/001—Texturing; Colouring; Generation of texture or colour
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/46—Colour picture communication systems
    • H04N1/56—Processing of colour picture signals
    • H04N1/60—Colour correction or control
    • H04N1/603—Colour correction or control controlled by characteristics of the picture signal generator or the picture reproducer
    • H04N1/6033—Colour correction or control controlled by characteristics of the picture signal generator or the picture reproducer using test pattern analysis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
    • G01J2003/467—Colour computing

Abstract

The digital image is analyzed to determine the captured target color (12) and the captured colors of the test card color fields (20). A correction model accounting for ambient lighting conditions and distortion due to image capturing device is computed from the captured and known colors of the test card color fields. The correction model is applied to the captured target color (60) and the estimated true target color is compared to a database of true product color (80) to determine a nearest matching.
PCT/US2001/022692 2000-08-08 2001-07-19 Method and system for matching a surface color WO2002013136A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU2001276994A AU2001276994A1 (en) 2000-08-08 2001-07-19 Method and system for matching a surface color
CA002419053A CA2419053A1 (en) 2000-08-08 2001-07-19 Method and system for matching a surface color
EP01954770A EP1325462A2 (en) 2000-08-08 2001-07-19 Method and system for matching a surface color

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/633,933 2000-08-08
US09/633,933 US6628829B1 (en) 2000-08-08 2000-08-08 Method and system for matching a surface color

Publications (2)

Publication Number Publication Date
WO2002013136A2 WO2002013136A2 (en) 2002-02-14
WO2002013136A3 true WO2002013136A3 (en) 2002-06-13

Family

ID=24541748

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/022692 WO2002013136A2 (en) 2000-08-08 2001-07-19 Method and system for matching a surface color

Country Status (5)

Country Link
US (1) US6628829B1 (en)
EP (1) EP1325462A2 (en)
AU (1) AU2001276994A1 (en)
CA (1) CA2419053A1 (en)
WO (1) WO2002013136A2 (en)

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Also Published As

Publication number Publication date
WO2002013136A2 (en) 2002-02-14
AU2001276994A1 (en) 2002-02-18
CA2419053A1 (en) 2002-02-14
EP1325462A2 (en) 2003-07-09
US6628829B1 (en) 2003-09-30

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