Abstract:
The disclosure relates to a method for calibrating colors of at least one display device, called a target device, from another display device, called a reference device, said target device being associated with a first rendering function, and said reference device being associated with a second rendering function, said first and second rendering functions being associated with respectively a first set of parameters and a second set of parameters. The method comprises: displaying on the target device at least two pixels with encoded colors (Ci), viewed by a user on the target device as first perceived colors (P T i), said encoded colors (Ci) being viewed by the user on the reference device as second perceived colors (P R i); modifying the encoded colors (Ci) on the target device, delivering modified encoded colors (Ci') viewed by the user on the target device as modified perceived colors (P T i'), corresponding to the second perceived colors (P R i), via a user's input; determining a first and a second set of modified parameters for respectively said first and second rendering functions, so that encoded colors may be perceived similarly on the target and reference devices; correcting an encoded color of at least another pixel to be displayed on the target device, using said first and second set of modified parameters.
Abstract:
Systems and methods for lighting calibration are disclosed. A brightness level for a first color, a brightness level for a second color, and a brightness level for a third color are detected for at least a portion of the plurality of light sources. A desired brightness value for the first color is determined based on the detected brightness level for the first color. A desired brightness value for the second color is determined based on the detected brightness level for the second color. A desired brightness value for the third color is determined based on the detected brightness level for the third color. One or more currents are adjusted at the plurality of light sources to set the plurality of light sources to the desired brightness value for the first color, the desired brightness value for the second color, and the desired brightness value for the third color.
Abstract:
본 발명은 색정보를 측정할 수 있는 3차원 형상 측정 장치에 관한 것이며, 본 발명의 색정보를 측정할 수 있는 3차원 형상 측정 장치는 간섭계를 이용하여 측정대상물의 형상을 측정하는 3차원 형상 측정 장치에 있어서, 광을 방출하는 광원; 상기 광원으로부터 방출된 광을 반사시키거나 또는 측정대상물에 의하여 반사된 광을 투과시키는 광분할기; 상기 광분할기에 의해 반사된 광을 상기 측정대상물에 집속시키는 렌즈부; 상기 측정대상물로부터 반사되는 광을 검출하는 광검출부; 상기 광원과 상기 광분할기 사이의 광경로 상에 배치되며 상기 광원의 중심 영역으로부터 방출되는 광을 차단하여 상기 렌즈부에서 발생하는 광의 간섭을 약화시키는 광조절부;를 포함하는 것을 특징으로 한다.
Abstract:
Die vorliegende Erfindung betrifft ein Verfahren zur Farbkalibrierung eines Farbmonitors mit LED- Hintergrundbeleuchtung, bei dem mindestens ein Bereich eines am Farbmonitor (1) dargestellten Bildes aus der Entfernung ortsaufgelöst mit einem als Bild- oder Zeilensensor ausgebildeten Farbsensor (7) vermessen wird, ortsaufgelöst Abweichungen gemessener Farbwerte von Soll-Farbwerten bestimmt werden, und eine LED- Hintergrundbeleuchtung des Farbmonitors (1) zur lokalen Korrektur der Abweichungen angesteuert wird. Bei Integration des Farbsensors (7) in die Fernbedienung (2) eines Farbfernsehgerätes richtet der Benutzer lediglich die Fernbedienung (2) geeignet auf das Fernsehgerät aus, wodurch der Farbsensor (7) ein Testbild (3) des Farbfernsehgerätes erfasst und zur Bestimmung von Farbkorrekturen auswertet. Das Verfahren ermöglicht eine einfache Farbkalibrierung eines Farbfernsehgerätes ab Werk oder direkt beim Anwender.
Abstract:
La présente invention se rapporte à un procédé de mesure de la réflectance diffuse uniforme R OBJ (λ) en au moins un point d'un objet (30) à l'aide d'un dispositif (10) comportant un moyen (11) apte à émettre des illuminants de couleur exprimés sous la forme de flux lumineux et un capteur électronique d'images couleurs (12). La présente invention se rapporte également à un dispositif (10) comportant un moyen (11) apte à émettre des illuminants de couleur sous la forme de flux lumineux de couleurs et un capteur électronique d'images couleurs (12), de mesure de la réflectance diffuse uniforme R OBJ (λ) en au moins un point d'un objet (30) placé dans une zone se trouvant en face de et sensiblement perpendiculairement audit moyen (11) apte à émettre des couleurs et se trouvant dans le champ de vision dudit capteur électronique d'images couleurs (12) et étant soumis à un illuminant extérieur sous la forme d'un flux lumineux extérieur environnant (40) noté I ext (λ), constant et inconnu.
Abstract:
The invention provides a system and method that allows for the calibration of color and intensity in a display system in a manner that is practical for the user, and handling obscuring factors, giving the user the ability to make intelligent trade-offs, and making it possible to quickly and efficiently re-compute a correction. More generally, correction and adjustment of intensity and color non-uniformities, and using optical sensor feedback to detect and correct for those changes is contemplated. This includes, but is not limited to, showing very bright images and very dark images. This invention further provides methods for making a practical system for the user, including a method of calculating corrections, dealing with obscuring factors that can affect the calculation process, providing information to allow users to make decisions on how to make trade-offs on the quality factors of the display, and allowing fast re-calculation of intensity corrections when re-calibrating.
Abstract:
One embodiment of a solid-state color-measuring device includes a plurality of photodetectors and a plurality of filters permanently deposited on the photodetectors, where at least one of the filters includes a single colorant layer having a transmission coefficient as a function of wavelength that descends from a maximum value between approximately 445 and 450nm to fifteen percent of the maximum value between approximately 485 and 495nm.