纸张喷墨打印质量检测系统的建立和研究

介绍了自行设计的可视化检测系统,以此来评定喷墨打印纸的打印质量.根据喷墨打印时产生的毛细管现象、羽化现象、渗透现象和渗色现象,确定了通过统计打印点面积的扩散比、边缘粗糙度和圆度偏差而得的喷墨打印质量指数来作为评定依据,开发了图像检测软件,对6种不同品牌的喷墨打印相纸进行了测量及评价.实验表明,该系统能够以定量、客观的方式来评定喷墨打印纸的打印质量,确定喷墨打印纸的最佳打印分辨率和优化工厂生产工序.

An Automatic Measuring System for the Printing Quality of Ink-Jet Paper

An automatic visual measuring system designed for evaluating the printing quality of coated ink-jet paper is presented.Based on the degree of wicking,feathering,strike-through and color-to-color bleeding,Ink-Jet Printing Quality Index (IPQI),which was defined according to Area Speed Ratio (ASR),Edge Raggedness (ER),and Roundness Deviation (RD) of the printed dots,the printing quality was evaluated.An iterative repetition interpolation threshold segmentation algorithm was performed with the aid of magnifying glass,charge coupled device (CCD) camera,frame grabber,image software and computer.Six kinds of coated glossy photo papers were tested with the same ink and ink-jet printer,the best printing resolution of each kind was obtained and their printing results were ranked.It was shown that the system can meet the requirements of papermakers and can provide an objective and quantitative method for evaluating the printing quality,determining the best printing resolution and optimizing the coating process for coated ink-jet paper.