Offset Ink Quantity Estimation Model Based on Image Block Processing

Abstract:

In the offset printing industry, ink quantity plays an important role. At the present time, ink evaluation usually depends on human naked eyes. Although the method is easily to carry out, to the same original image, the results usually differ from the practical ones. In the research, processed gray prepress digital images to be input into plate making device are considered, with image block processing theory, according to parameters such as screening lines and ink density and so on, the ink quantity of the original image on the printed sheet is figured out. Similarly, batch printed sheets ink quantity could be calculated. The experiment shows that the ink quantity reaches rather high exactitude, approaches factual ink quantity in the printing workroom with fairly high precision.

• Periodical: Advanced Materials Research (Volume 174)
• Pages: 199-202
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.174.199
• Online since: December 2010
• Authors: Lei Zhao, Guang Xue Chen
• Keywords: Image Block Processing, Ink Quantity, Offset Printing

References

[1] S.S. Zhou: Printing Color Science(Printing Industry Press, China 2008).

[2] H.G. Yao: Digital Screening Technology(Printing Industry Press, China 2000).

[3] H.G. Yao: Print Image Processing(Shanghai Science and Technology Press, China 2005).

[4] J. Xu: Digital Image Processing(Central China University of Science and Technology Press, China 2009).

[5] C. Gao: MatLab Image Processing and Applications(National Defense Industry Press, China 2007).

[6] X.H. Cai: MATLAB Fundamentals and Applications Tutorial(People Posts & Telecom Press, China 2009). Acknowledgement Project supported by the National Natural Science Foundation of China (Grant No. 60972134). The Corresponding author is Chen Guangxue.