色差仪的应用实践

Practice on color difference instrument

简要阐述颜色色差及色差公式 ,分析了各色差公式的异同 ,介绍了ISO和AATCC灰卡色差值分析。CMC色差公式计算的色差值较符合人的目光评定。在实际的生产过程中用仪器采用不同的色差公式代替色差的目光评定 ,使色差值有了量化数值 ,消除了客商和生产厂家的争执 ,可使网上接单成为现实。

In this paper, color difference and its formula are described briefly and differences of each formula of color difference are analyzed. Color difference value of gray scale from ISO and AATCC is introduced. The value of color difference calculated by CMC color difference formula is more coincident with visual assessment. In practice production, instrument assessment with color difference formula can substitute visual assessment. Thus, color difference value has quantification numerical value.