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热词
    • 10. 发明授权
    • Conversion of an RGB color scanner into a colorimetric scanner
    • 将RGB彩色扫描仪转换成比色扫描仪
    • US5200817A
    • 1993-04-06
    • US752118
    • 1991-08-29
    • David Birnbaum
    • David Birnbaum
    • H04N1/60
    • H04N1/603H04N1/6058
    • A color conversion system is disclosed for converting raw RGB scanner data into a colorimetric system. The raw scanner data are processed in three stages. In the first stage, the raw RGB signals are converted into END-like RGB signals. This transformation is performed by passing each RGB signal separately through a lookup table to transform it to the equivalent END signal. In the second stage, the END signals are transformed into tristimulus signals XYZ. In the final stage, the XYZ signals are subjected to a non-linear transformation to convert them into a colorimetric system.
    • 公开了一种用于将原始RGB扫描器数据转换成比色系统的颜色转换系统。 原始扫描仪数据分三个阶段进行处理。 在第一阶段,原始RGB信号被转换成类似于END的RGB信号。 通过将每个RGB信号分别通过查找表传递到等效的END信号来执行该转换。 在第二阶段,END信号被转换为三刺激信号XYZ。 在最后阶段,对XYZ信号进行非线性变换,将其转换为比色系统。