Method for calibrating a color space transformation, method for color space transformation and color control system

A method for calibrating a color space transformation according comprises driving of a light source at a first ambient temperature T1. The light source it is tuned to emit light with a number N of combinations of at least two correlated color temperatures and at least two intensities. Furthermore, t...

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Bibliographische Detailangaben
Hauptverfasser:	Afshari, Sina, Ghoshal, Sajol Christopher
Format:	Patent
Sprache:	eng
Schlagworte:	ADVERTISING ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION BLASTING CALCULATING COMPUTING COUNTING CRYPTOGRAPHY DISPLAY EDUCATION ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY HEATING IMAGE DATA PROCESSING OR GENERATION, IN GENERAL INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED LIGHTING MECHANICAL ENGINEERING PHYSICS SEALS WEAPONS
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Beschreibung
Zusammenfassung:	A method for calibrating a color space transformation according comprises driving of a light source at a first ambient temperature T1. The light source it is tuned to emit light with a number N of combinations of at least two correlated color temperatures and at least two intensities. Furthermore, the method includes receiving first red coordinates, first green coordinates and first blue coordinates measurements in the RGB color space. First x-coordinates, first y-coordinates and first z-coordinates are received from measurements in the XYZ color space. 3×N matrices RGB_1 and XYZ_1 are constructed based on the received coordinates. A 3×3 conversion matrix C is generated to fulfil the relation XYZ_1=C*RGB_1.