Pengaruh Level GCR dan UCR dengan Pengaturan Total Ink Limit Terhadap Penyimpangan Warna

  • Endang Yuniarti Politeknik Negeri Jakarta, Jakarta, Indonesia
  • Rozella Jolanda Politeknik Negeri Jakarta, Jakarta, Indonesia
  • Rachmah Nanda Kartika Politeknik Negeri Jakarta, Jakarta, Indonesia
Keywords: Delta E, gray component replacement, total ink limit, under color removal

Abstract

Keakuratan warna abu-abu berperan penting dalam pengendalian kualitas warna suatu cetakan. Hal ini karena warna tersebut terdiri dari warna cyan, magenta dan yellow untuk melihat karateristik warna CIEL*a*b. Kalkulasi warna abu-abu ini dapat diatur dengan metode gray component replacement (GCR) dan under color removal (UCR) pada kegiatan pracetak dengan cara mengatur level total ink limit pada printer. Maka tujuan dari penelitian ini adalah untuk mendapatkan level GCR/UCR yang memiliki ∆E a*b terkecil dengan pengaturan total ink limit dan nilai deviasi warna (∆E a*b) dengan 3 variasi pengaturan total ink limit (200%, 300%, 400%) pada target warna FOGRA 27. Hasil penelitian ini menunjukkan bahwa komposisi CMYK ink coverage level GCR/UCR menunjukkan perubahan deviasi/penyimpangan warna (∆E a*b) neutral gray (mid tone) menggunakan FOGRA 27, memperlihatkan bahwa semakin tinggi total ink coverage maka semakin banyak tinta CMYK yang digunakan. Dan nilai deviasi warna (∆E a*b) terkecil adalah GCR Medium 400% dengan nilai ∆E a*b = 3,0 dan nilai penyimpangan warna UCR terkecil sebesar 1,67.

Downloads

Download data is not yet available.

References

A. B. López-Baldomero, M. Rubiño, C. Ortiz, and C. Salas, “New software for comparing the color gamuts generated by printing technologies,” Optik (Stuttg), vol. 261, p. 169194, Jul. 2022, doi: 10.1016/J.IJLEO.2022.169194.

H. R. Kusumantoro, E. Djonaedi, and E. Yuniarti, “Analisis Perubahan Warna dalam Proses Pengeringan Tinta DYE dengan Menggunakan Lighfastness Chamber,” Journal of Applied Electrical Engineering, vol. 6, no. 1, pp. 22–26, Jun. 2022, doi: 10.30871/JAEE.V6I1.4040.

“Digital Color Proofing (DCP),” Gramedia, May 2014.

E. Köse, T. Şahinbaşkan, and I. Güler, “The investigation of effects of digital proofing systems used in colour management on print quality with neural networks,” Expert Syst Appl, vol. 36, no. 1, pp. 745–754, Jan. 2009, doi: 10.1016/J.ESWA.2007.10.025.

“Printing with ICC Profiles - Alder Color Solutions.” https://aldertech.com/printing-icc-profiles/ (accessed Dec. 30, 2022).

S. Bangyong, L. Han, and Z. Shisheng, “Calculating cyan-magenta-yellow-black (CMYK) printer gray component data based on polynomial modeling,” Scientific Research and Essays, vol. 9, no. 9, pp. 352–356, May 2014, doi: 10.5897/SRE2014.5915.

D. Donevski, A. Poljicak, and M. S. Kurecic, “Colorimetrically accurate gray component replacement using the additive model,” J Vis Commun imageRepresent, vol. 44, pp. 40–49, Apr. 2017, doi: 10.1016/J.JVCIR.2017.01.018.

R. Balasubramanlan and R. Eschbach, “Reducing multi-separation color Moiré by a variable undercolor removal and gray component replacement strategy: Color imaging science,” Journal of Imaging Science and Technology, 2001.

Y. Qu, “Color Prediction and Separation Models in Printing: Minimizing the Colorimetric and Spectral Differences employing Multiple Characterization Curves,” 2013.

D. McGavin, B. Stukenborg, and M. Witkowski, “Color Figures in BJ: RGB versus CMYK,” Biophys J, vol. 88, no. 2, pp. 761–762, Feb. 2005, doi: 10.1529/BIOPHYSJ.105.059600.

J. S. Dilawari and R. Khanna, “Developing ICC Profile Using Gray Level Control In Offset Printing Process,” Oct. 2012, doi: 10.48550/arxiv.1210.5732.

“Analyzing the Effect of Paper’s Porosity on Trapping and Colour Value.” ASIAN JOURNAL OF CHEMISTRY, 2011. Accessed: Dec. 30, 2022. [Online]. Available: https://hdl.handle.net/11424/230140

H. Viluksela, “Evaluation of a Prepress Workflow Solution for Sheetfed Offset,” 2017.

J. Stringer and B. Derby, “Limits to feature size and resolution in ink jet printing,” J Eur Ceram Soc, vol. 29, no. 5, pp. 913–918, Mar. 2009, doi: 10.1016/J.JEURCERAMSOC.2008.07.016.

J. S. Kirkenaer and L. Ernst, “Ink limits and perceived print quality,” 2013 Colour and Visual Computing Symposium (CVCS), 2013, doi: 10.1109/CVCS.2013.6626282.

E. Enoksson and A. Bjurstedt, “Compensation by black (CB) : A new separation?,” 2006.

Oleg B. Milder and Dmitry A. Tarasov, “Gray Balance Control in Offset Printing with the ECI/bvdm Gray Control Strip,” Jan. 2017.

Deddy Award Widya Laksana, Scan dan Pracetak. 2017.

O. Milder and D. Tarasov, “Grey balance adjusting in imageprocessing using gradation trajectories,” 2017.

Published
2022-12-30
How to Cite
Yuniarti, E., Jolanda, R., & Kartika, R. (2022). Pengaruh Level GCR dan UCR dengan Pengaturan Total Ink Limit Terhadap Penyimpangan Warna. Journal of Applied Electrical Engineering, 6(2), 94-97. https://doi.org/10.30871/jaee.v6i2.4775