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Study on the Color Representing Accuracy of Spectrum with Different Wavelength Range and Interval

The spectral representing accuracy with different wavelength range and sampling interval were analyzed in this study. The spectral reflectance of different color sets were measured. The CIELAB and CIEDE2000 color differences under CIE standard illuminants and actual lighting sources were calculated to evaluate the representing accuracy among the spectral reflectance with various wavelength ranges and sampling intervals. Results of the experiment indicate that the representing accuracy of the spectral reflectance with different wavelength range and sampling interval were affected by the media type. As a whole, the colorimetric representing accuracy of the spectral reflectance with the range of 400 to 700nm and 10nm~30nm sampling intervals are acceptable comparing to the 380 to 780nm range and lower sampling intervals.