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ES2187386A1 - METHOD FOR SPECTROCOLORIMETRIC CHARACTERIZATION OF CAPTURE DEVICES - Google Patents

METHOD FOR SPECTROCOLORIMETRIC CHARACTERIZATION OF CAPTURE DEVICES

Info

Publication number
ES2187386A1
ES2187386A1 ES200102667A ES200102667A ES2187386A1 ES 2187386 A1 ES2187386 A1 ES 2187386A1 ES 200102667 A ES200102667 A ES 200102667A ES 200102667 A ES200102667 A ES 200102667A ES 2187386 A1 ES2187386 A1 ES 2187386A1
Authority
ES
Spain
Prior art keywords
spectral sensitivity
sensitivity curves
color
spectrocolorimetric
characterization
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
ES200102667A
Other languages
Spanish (es)
Other versions
ES2187386B1 (en
Inventor
Ramo Jaume Pujol
Verdu F Miguel Martinez
Perea Pascual Capilla
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Universitat Politecnica de Catalunya UPC
Original Assignee
Universitat Politecnica de Catalunya UPC
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 Universitat Politecnica de Catalunya UPC filed Critical Universitat Politecnica de Catalunya UPC
Priority to ES200102667A priority Critical patent/ES2187386B1/en
Publication of ES2187386A1 publication Critical patent/ES2187386A1/en
Application granted granted Critical
Publication of ES2187386B1 publication Critical patent/ES2187386B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Spectrometry And Color Measurement (AREA)

Abstract

La invención consiste en un método para la caracterización espectrocolorimétrica de dispositivos de captura, independientemente del tipo de arquitectura de color y del sensor optoelectrónico, que permite obtener las curvas de sensibilidad espectral y las funciones de igualación del color. El método se basa en la medida experimental de las funciones espectrales de conversión optoelectrónica de forma completa para los canales color, la obtención a partir de éstas de las curvas de sensibilidad espectral absoluta y de las curvas de sensibilidad espectral relativa. Las funciones de igualación del color se obtienen a partir del escalado conjunto de las curvas de sensibilidad espectral relativa y del balance de blanco respecto del estímulo equienergético.The invention consists of a method for the spectrocolorimetric characterization of capture devices, regardless of the type of color architecture and the optoelectronic sensor, which makes it possible to obtain spectral sensitivity curves and color matching functions. The method is based on the experimental measurement of the complete optoelectronic conversion spectral functions for the color channels, obtaining from these the absolute spectral sensitivity curves and the relative spectral sensitivity curves. The color equalization functions are obtained from the joint scaling of the relative spectral sensitivity curves and the white balance with respect to the equienergetic stimulus.

ES200102667A 2001-11-20 2001-11-20 METHOD FOR SPECTROCOLORIMETRIC CHARACTERIZATION OF CAPTURE DEVICES. Expired - Fee Related ES2187386B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES200102667A ES2187386B1 (en) 2001-11-20 2001-11-20 METHOD FOR SPECTROCOLORIMETRIC CHARACTERIZATION OF CAPTURE DEVICES.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200102667A ES2187386B1 (en) 2001-11-20 2001-11-20 METHOD FOR SPECTROCOLORIMETRIC CHARACTERIZATION OF CAPTURE DEVICES.

Publications (2)

Publication Number Publication Date
ES2187386A1 true ES2187386A1 (en) 2003-06-01
ES2187386B1 ES2187386B1 (en) 2004-10-16

Family

ID=8499618

Family Applications (1)

Application Number Title Priority Date Filing Date
ES200102667A Expired - Fee Related ES2187386B1 (en) 2001-11-20 2001-11-20 METHOD FOR SPECTROCOLORIMETRIC CHARACTERIZATION OF CAPTURE DEVICES.

Country Status (1)

Country Link
ES (1) ES2187386B1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4951141A (en) * 1988-10-25 1990-08-21 Rohde & Schwarz Gmbh & Co. Kg Method of determining the transmission function of a video camera
JPH02232532A (en) * 1989-03-06 1990-09-14 Olympus Optical Co Ltd Photoelectric colorimeter
US5430482A (en) * 1993-08-18 1995-07-04 Samsung Electronics Co., Ltd. Electronic view finder having a color vector display
US5699451A (en) * 1992-11-23 1997-12-16 Agfa-Gevaert Aktiengesellschaft Correction of color defects during printing of photographs

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4951141A (en) * 1988-10-25 1990-08-21 Rohde & Schwarz Gmbh & Co. Kg Method of determining the transmission function of a video camera
JPH02232532A (en) * 1989-03-06 1990-09-14 Olympus Optical Co Ltd Photoelectric colorimeter
US5699451A (en) * 1992-11-23 1997-12-16 Agfa-Gevaert Aktiengesellschaft Correction of color defects during printing of photographs
US5430482A (en) * 1993-08-18 1995-07-04 Samsung Electronics Co., Ltd. Electronic view finder having a color vector display

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BASE DE DATOS PAJ de JPO & JP 02232532 A (OLYMPUS OPTICAL CO. LTD.) 14.09.1990, resumen; figura. *

Also Published As

Publication number Publication date
ES2187386B1 (en) 2004-10-16

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