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Originally posted by benmao_mogu at 2010-04-27 22:47:00:
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ǰÎÄÊÇÕâÑùµÄ£ºThis is carried out to account for the background spectral response of the instrument and the ¡®dark¡¯ camera response. For reflectance measurements, the background is obtained by collecting a hypercube from a uniform, high reflectance standard or white ceramic; the dark response is acquired by turning off the light source, completely covering the lens with its cap and recording the camera response.
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