基于网点排布状态的色彩再现差异性研究

为了研究网点排布状态对色彩再现的影响及彼此之间色彩的差异性,设计了模拟网点并列、完全重叠及部分重叠的样条,并对输出样条中各色块进行密度、色差和光谱曲线的测量比较。实验结果表明,在表达同一原稿色时,原色网点的排列方式不同,色彩表现会存在明显差异;网点并列时呈色效果最好,网点完全重叠时色彩表现力最差;色彩再现差异还与网点面积和油墨自身属性有关。

Research on Differences of Color Reproduction Based on Dots Distribution State

In order to research the effect of dots distribution state on color reproduction and color difference,sample strips simulating dots juxtaposition,dots all overprint and dots part overprint were designed.The density,ΔE and spectral curve of print samples were measured and compared.The results showed that,for the same original color reproduction,color performance has obvious difference when original dots distribution style is different;color reproduction is best when dots juxtaposition;color reproduction is the worst when dots completely overlap;the differences of color reproduction also relate to dot area coverage and ink attributes.