Publication: Choice of colour space in illuminance measurement with a low-cost digital camera
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Date
2016
Authors
Tay L.C.
Ong H.S.
Journal Title
Journal ISSN
Volume Title
Publisher
Institute of Electrical and Electronics Engineers Inc.
Abstract
Poor colour rendering characteristic of a low cost camera results in poor colour recognition, especially with images taken under non-white illumination. A simplified colour calibration process for a digital web cam to be used for indoor illuminance measurement, enabling automatic, realtime, simultaneous measurement of illuminance of an indoor space at multi-locations based on its video image is proposed. Lab test results on 12 colours yielded 88% accuracy, which can be further improved in future work. � 2015 IEEE.
Description
Color; Digital cameras; Lighting; Video cameras; Calibration process; Colour rendering; Colour spaces; illuminance invariant; Illuminance measurement; Indoor space; Simultaneous measurement; Video image; Image processing