三波段法计算机配色的研究

Study on Tri-Waveband Computer Colour Matching Method

本文分析了三刺激值方法和全光谱方法计算机配色的优缺点,建立了三波段法计算机配色系统。这种方法,根据人眼标准观察者三刺激值的最大值分别落在可见光范围内的红区、绿区和蓝区的特点,把可见光范围的光谱均分为三个波段,在每个波段上,应用三刺激值配色,对三个波段上的色差又采用最小二乘法方法优化,最终确定所需要的配方。实验表明,三波段法配色具有三刺激值配色和全光谱匹配两种方法的优点。

The advantage and disadvantage of tri-stimulus value matching and spectrophotometric curve matching are discussed in this paper. Based on this,tri-wavebands matching is proposed. According to the character that maximum of standard observer tri-stimulus value is in the red, green and blue area separately, visual spectral is devided into tri-waveband. In each waveband, tri-stimulus value matching is applied) after that, colour difference of tri-wave-band is optimized with the least square technique. Experiments show that the tri-waveband matching method has the advantage of tri-stimulus value matching and spectrophotometric matching.