Undercolor removal (UCR) and gray component replacement (GCR) are color reproduction considerations for converting images from RGB to CMYK for the printing press. Understanding the concepts of why they are needed, how they influence color in color separation, and the advantages and disadvantages of each are critical to successful color reproduction. Using practical examples and visuals, this eLearning course will go under the hood to provide a clear understanding of UCR and GCR techniques for color separation in print production.
Time to complete: 1 hour for the course and knowledge assessments.
You will learn
- Color gamut comparison and RGB versus CMYK color space
- How color is separated, gamut compression, and rendering intent
- Undercolor Removal (UCR) color separation techniques
- Gray component replacement (GCR) color separation techniques
- Comparing UCR and GCR, when, why, and how to use
Joe Marin is Vice President, Education and Training for Printing Industries of America. Joe is one of the industry's leading voices on digital technologies, including all things related to succeeding in a digital print environment. He is a veteran speaker at GRAPH EXPO and other venues on color management, PDF workflow, preparing print-ready files, web-to-print, and business-related issues. Joe also develops, presents, and consults on integrated print technologies such as augmented reality, mobile website development, and search engine optimization and marketing. Joe has developed custom training programs for major industry manufacturers and suppliers and managed both the NPES Teachers Update and Conference. He is the author of the Prepress Skills Training Program, Process Control Primer, Digital Prepress Primer, and co-author of The PDF Print Production Guide, all published by Printing Industries Press.
Prior to joining Printing Industries of America, Joe was a production solutions consultant with Konica Minolta, and in a former role, manager of training programs for PIA. Joe also worked in the prepress departments of several Pittsburgh-area printing companies. He holds a Bachelor's Degree in Graphic Communications from California University of Pennsylvania.