Abstract
This paper presents an image processing method designed to measure a list of predefined color quality metrics of LED light sources. The measurement process relies on a CMOS imaging sensor with known sensitivity in the spectrum of 400 to 1000nm, high dynamic range and low noise. The proposed measurement method acquires images of target LED light sources, with known CCT, applies corrections to the data considering the sensor spectral sensitivity and then computes the color quality metrics. The method characterizes the color quality of the analyzed LED light source by means of the following metrics: Correlated Color Temperature (CCT), Delta uv (Duv) and Standard Deviation Color Matching (SDMC).
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