World Library  
Flag as Inappropriate
Email this Article

CcMmYK color model

Article Id: WHEBN0006325982
Reproduction Date:

Title: CcMmYK color model  
Author: World Heritage Encyclopedia
Language: English
Subject: Color space, CMYK color model, Ostwald color system, Practical Color Coordinate System, Coloroid
Collection: Color Space, Printing Terminology
Publisher: World Heritage Encyclopedia
Publication
Date:
 

CcMmYK color model

An image printed with a CcMmYKk ink set, on both paper and canvas stock. The ink cartridges used are also shown.

CcMmYK, sometimes referred to as CMYKLcLm or CMYKcm, is a six color printing process used in some inkjet printers optimized for photo printing.[1] It extends the customary four color CMYK process, which stands for Cyan, Magenta, Yellow and Key (black), by adding light cyan (lower case c) and light magenta (lower case m).

Individually, light cyan is often abbreviated to Lc, and light magenta is represented as Lm.

Advantages of CcMmYK over CMYK

The most noticeable result of using light cyan and light magenta inks is the removal of a distinct and harsh halftoning dot appearance that appears in prints that use light shades of cyan or magenta on the pure CMYK ink configuration. Usually when printing a dark color the printer will saturate the area with colored ink dots, but will use fewer ink dots to create the effect of a light color. The result is hard to notice with yellow because yellow is perceived as a very light color. However, the individual cyan and magenta ink dots will stand out in a sparse pattern due to their darker color against a white background; the result is undesirable when it is noticed.

By using light cyan or magenta, the printer can saturate areas that would typically use halftoning with these inks to remove the look of sparse magenta and cyan dots. The downside is the printer needs approximately twice as much light cyan and magenta ink in areas to achieve the same saturation as pure cyan/magenta which can lead to excess ink usage. The end result, however, is significantly better for some photos.

CcMmYK colorants reduce graininess in the middle tone region.[2] This reduced graininess typically improves the photographic appearance of blue skies and some flesh tones.

References

  1. ^
  2. ^
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 


Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.