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3CCD camera's capability for measuring color differences: experiment in the nearly neutral region

机译:3CCD相机测量色差的能力:在接近中性的区域进行实验

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摘要

A method to assess the discrimination capability of a camera to measure small color differences is proposed. The method helps to fix the working conditions of the camera and analyzes the reliability of the measurements through comparison with a reference instrument. Attention is paid to the camera's performance in the nearly neutral region of color space. The color differences are calculated using the Commission Internationale de l'Eclairage L*a*b* (CIELAB) ΔE_(ab)~(*) and CIE 2000 color-difference formula metrics. The Sony DX-9100P 3CCD camera results are very close to those obtained by the Photo Research PR-715 spectroradiometer. Their absolute discrepancy is lower than the suprathreshold of visual discrimination (0.887 CIELAB unit).
机译:提出了一种评估照相机测量小色差的辨别能力的方法。该方法有助于固定摄像机的工作条件,并通过与参考仪器进行比较来分析测量的可靠性。注意色彩空间接近中性区域的相机性能。使用国际照明委员会L * a * b *(CIELAB)ΔE_(ab)〜(*)和CIE 2000色差公式度量标准来计算色差。 Sony DX-9100P 3CCD摄像机的结果非常接近Photo Research PR-715分光辐射仪获得的结果。它们的绝对差异低于视觉辨别力的上限(0.887 CIELAB单位)。

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