Max-Imize Your Color: Printing with Spot Colors
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Image Processing Terms Used in This Section Working with Different Screen Bit Describes How to Determine the Screen Bit Depth of Your Depths (P
13 Color This section describes the toolbox functions that help you work with color image data. Note that “color” includes shades of gray; therefore much of the discussion in this chapter applies to grayscale images as well as color images. Topics covered include Terminology (p. 13-2) Provides definitions of image processing terms used in this section Working with Different Screen Bit Describes how to determine the screen bit depth of your Depths (p. 13-3) system and provides recommendations if you can change the bit depth Reducing the Number of Colors in an Describes how to use imapprox and rgb2ind to reduce the Image (p. 13-6) number of colors in an image, including information about dithering Converting to Other Color Spaces Defines the concept of image color space and describes (p. 13-15) how to convert images between color spaces 13 Color Terminology An understanding of the following terms will help you to use this chapter. Terms Definitions Approximation The method by which the software chooses replacement colors in the event that direct matches cannot be found. The methods of approximation discussed in this chapter are colormap mapping, uniform quantization, and minimum variance quantization. Indexed image An image whose pixel values are direct indices into an RGB colormap. In MATLAB, an indexed image is represented by an array of class uint8, uint16, or double. The colormap is always an m-by-3 array of class double. We often use the variable name X to represent an indexed image in memory, and map to represent the colormap. Intensity image An image consisting of intensity (grayscale) values. -
CDOT Shaded Color and Grayscale Printing Reference File Management
CDOT Shaded Color and Grayscale Printing This document guides you through the set-up and printing process for shaded color and grayscale Sheet Files. This workflow may be used any time the user wants to highlight specific areas for things such as phasing plans, public meetings, ROW exhibits, etc. Please note that the use of raster images (jpg, bmp, tif, ets.) will dramatically increase the processing time during printing. Reference File Management Adjustments must be made to some of the reference file settings in order to achieve the desired print quality. The settings that need to be changed are the Slot Numbers and the Update Sequence. Slot Numbers are unique identifiers assigned to reference files and can be called out individually or in groups within a pen table for special processing during printing. The Update Sequence determines the order in which files are refreshed on the screen and printed on paper. Reference file Slot Number Categories: 0 = Sheet File (black)(this is the active dgn file.) 1-99 = Proposed Primary Discipline (Black) 100-199 = Existing Topo (light gray) 200-299 = Proposed Other Discipline (dark gray) 300-399 = Color Shaded Areas Note: All data placed in the Sheet File will be printed black. Items to be printed in color should be in their own file. Create a new file using the standard CDOT seed files and reference design elements to create color areas. If printing to a black and white printer all colors will be printed grayscale. Files can still be printed using the default printer drivers and pen tables, however shaded areas will lose their transparency and may print black depending on their level. -
How to Map a Spot Color to Specialty Dry Ink on the Top Layer
How to Map a Spot Color to Specialty Dry Ink GX Print Server for Iridesse Production Press Version 1.0 Overview This exercise will show the ability to output a spot color using specialty dry ink. This demonstration will use a function of the GX Print Server to map specified spot colors to specialty dry ink, positioning the ink on either the bottom/top layer of the paper. Objective By the end of this exercise users will be able to: • Find the location of the setting on the GX Print Server • Specify a spot color that will be mapped to specialty dry ink BEFORE AFTER Spot color “PANTONE 145 C” Map to Gold Map to Silver Map specified spot color Job including spot color to specialty dry ink 1 Configuration of the Job Properties Please note, this How To document is part of a set. If you cannot complete some of the following steps please refer to the other reference documents. i.e “Open the Job Properties” is further explained in the “How to import a job.pdf”. Go to: http://m1-onlinesupport.fujixerox.com/driver_downloads/OTS/OTS_gxprintserver_iridesse_EN.html 1. Open the Job Properties and select [Advanced Settings] > [Specialty Dry Ink]. Then, enable [Use Specialty Dry Ink] and click [OK]. 2. Select [Top Layer] from the side panel and enable [Map to Spot Color(s)]. Then, click [Edit]. 2 3. Click [Select] in the Edit Spot Color window. 4. Select [Pantone+ Solid Coated-V3] as [Select Categories], and select [PANTONE 145 C]. Then click [OK]. 5. Select [Add], the selected spot color is added into the list. -
Color Difference Delta E - a Survey
See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/236023905 Color difference Delta E - A survey Article in Machine Graphics and Vision · April 2011 CITATIONS READS 12 8,785 2 authors: Wojciech Mokrzycki Maciej Tatol Cardinal Stefan Wyszynski University in Warsaw University of Warmia and Mazury in Olsztyn 157 PUBLICATIONS 177 CITATIONS 5 PUBLICATIONS 27 CITATIONS SEE PROFILE SEE PROFILE All content following this page was uploaded by Wojciech Mokrzycki on 08 August 2017. The user has requested enhancement of the downloaded file. Colour difference ∆E - A survey Mokrzycki W.S., Tatol M. {mokrzycki,mtatol}@matman.uwm.edu.pl Faculty of Mathematics and Informatics University of Warmia and Mazury, Sloneczna 54, Olsztyn, Poland Preprint submitted to Machine Graphic & Vision, 08:10:2012 1 Contents 1. Introduction 4 2. The concept of color difference and its tolerance 4 2.1. Determinants of color perception . 4 2.2. Difference in color and tolerance for color of product . 5 3. An early period in ∆E formalization 6 3.1. JND units and the ∆EDN formula . 6 3.2. Judd NBS units, Judd ∆EJ and Judd-Hunter ∆ENBS formulas . 6 3.3. Adams chromatic valence color space and the ∆EA formula . 6 3.4. MacAdam ellipses and the ∆EFMCII formula . 8 4. The ANLab model and ∆E formulas 10 4.1. The ANLab model . 10 4.2. The ∆EAN formula . 10 4.3. McLaren ∆EMcL and McDonald ∆EJPC79 formulas . 10 4.4. The Hunter color system and the ∆EH formula . 11 5. ∆E formulas in uniform color spaces 11 5.1. -
Expanded Gamut Shoot-Out: Real Systems, Real Results
Expanded Gamut Shoot-Out: Real Systems, Real Results Abhay Sharma Click toRyerson edit Master University, subtitle Toronto style Advisors Roger Breton, Marc Levine, John Seymour, Bill Pope Comprehensive Report – 450+ downloads tinyurl.com/ExpandedGamut Agenda – Expanded Gamut § Why do we need Expanded Gamut? § What is Expanded Gamut? (CMYK-OGV) § Use cases – Spot Colors vs Images PANTONE 109 C § Printing Spot Colors with Kodak Spotless (KSS) § Increased Accuracy § Using only 3 inks § Print all spot colors, without spot color inks § How do I implement EG? § Issues with Adobe and Pantone § Flexo testing in 2020 Vendors and Participants Software Solutions 1. Alwan – Toolbox, ColorHub 2. CGS ORIS – X GAMUT 3. ColorLogic – ColorAnt, CoPrA, ZePrA 4. GMG Color – OpenColor, ColorServer 5. Heidelberg – Prinect ColorToolbox 6. Kodak – Kodak Spotless Software, Prinergy PDF Editor § Hybrid Software - PACKZ (pronounced “packs”) RIP/DFE § efi Fiery XF (Command WorkStation) – Epson P9000 § SmartStream Production Pro – HP Indigo 7900 Color Management Solutions § X-Rite i1Profiler Expanded Gamut Tools § PANTONE Color Manager, Adobe Acrobat Pro, Adobe Photoshop Why do we need Expanded Gamut? - because imaging systems are imperfect Printing inks and dyes CMYK color gamut is small Color negative film What are the Use Cases for Expanded Gamut? ✓ 1. Spot Colors 2. Images PANTONE 301 C PANTONE 109 C Expanded gamut is most urgently needed in spot color reproduction for labels and package printing. Orange, Green, Violet - expands the colorspace Y G O C+Y M+Y -
Real-Time Supervised Detection of Pink Areas in Dermoscopic Images of Melanoma: Importance of Color Shades, Texture and Location
Missouri University of Science and Technology Scholars' Mine Electrical and Computer Engineering Faculty Research & Creative Works Electrical and Computer Engineering 01 Nov 2015 Real-Time Supervised Detection of Pink Areas in Dermoscopic Images of Melanoma: Importance of Color Shades, Texture and Location Ravneet Kaur P. P. Albano Justin G. Cole Jason R. Hagerty et. al. For a complete list of authors, see https://scholarsmine.mst.edu/ele_comeng_facwork/3045 Follow this and additional works at: https://scholarsmine.mst.edu/ele_comeng_facwork Part of the Chemistry Commons, and the Electrical and Computer Engineering Commons Recommended Citation R. Kaur et al., "Real-Time Supervised Detection of Pink Areas in Dermoscopic Images of Melanoma: Importance of Color Shades, Texture and Location," Skin Research and Technology, vol. 21, no. 4, pp. 466-473, John Wiley & Sons, Nov 2015. The definitive version is available at https://doi.org/10.1111/srt.12216 This Article - Journal is brought to you for free and open access by Scholars' Mine. It has been accepted for inclusion in Electrical and Computer Engineering Faculty Research & Creative Works by an authorized administrator of Scholars' Mine. This work is protected by U. S. Copyright Law. Unauthorized use including reproduction for redistribution requires the permission of the copyright holder. For more information, please contact [email protected]. Published in final edited form as: Skin Res Technol. 2015 November ; 21(4): 466–473. doi:10.1111/srt.12216. Real-time Supervised Detection of Pink Areas in Dermoscopic Images of Melanoma: Importance of Color Shades, Texture and Location Ravneet Kaur, MS, Department of Electrical and Computer Engineering, Southern Illinois University Edwardsville, Campus Box 1801, Edwardsville, IL 62026-1801, Telephone: 618-210-6223, [email protected] Peter P. -
The Art of Digital Black & White by Jeff Schewe There's Just Something
The Art of Digital Black & White By Jeff Schewe There’s just something magical about watching an image develop on a piece of photo paper in the developer tray…to see the paper go from being just a blank white piece of paper to becoming a photograph is what many photographers think of when they think of Black & White photography. That process of watching the image develop is what got me hooked on photography over 30 years ago and Black & White is where my heart really lives even though I’ve done more color work professionally. I used to have the brown stains on my fingers like any good darkroom tech, but commercially, I turned toward color photography. Later, when going digital, I basically gave up being able to ever achieve what used to be commonplace from the darkroom–until just recently. At about the same time Kodak announced it was going to stop making Black & White photo paper, Epson announced their new line of digital ink jet printers and a new ink, Ultrachrome K3 (3 Blacks- hence the K3), that has given me hope of returning to darkroom quality prints but with a digital printer instead of working in a smelly darkroom environment. Combine the new printers with the power of digital image processing in Adobe Photoshop and the capabilities of recent digital cameras and I think you’ll see a strong trend towards photographers going digital to get the best Black & White prints possible. Making the optimal Black & White print digitally is not simply a click of the shutter and push button printing. -
Accurately Reproducing Pantone Colors on Digital Presses
Accurately Reproducing Pantone Colors on Digital Presses By Anne Howard Graphic Communication Department College of Liberal Arts California Polytechnic State University June 2012 Abstract Anne Howard Graphic Communication Department, June 2012 Advisor: Dr. Xiaoying Rong The purpose of this study was to find out how accurately digital presses reproduce Pantone spot colors. The Pantone Matching System is a printing industry standard for spot colors. Because digital printing is becoming more popular, this study was intended to help designers decide on whether they should print Pantone colors on digital presses and expect to see similar colors on paper as they do on a computer monitor. This study investigated how a Xerox DocuColor 2060, Ricoh Pro C900s, and a Konica Minolta bizhub Press C8000 with default settings could print 45 Pantone colors from the Uncoated Solid color book with only the use of cyan, magenta, yellow and black toner. After creating a profile with a GRACoL target sheet, the 45 colors were printed again, measured and compared to the original Pantone Swatch book. Results from this study showed that the profile helped correct the DocuColor color output, however, the Konica Minolta and Ricoh color outputs generally produced the same as they did without the profile. The Konica Minolta and Ricoh have much newer versions of the EFI Fiery RIPs than the DocuColor so they are more likely to interpret Pantone colors the same way as when a profile is used. If printers are using newer presses, they should expect to see consistent color output of Pantone colors with or without profiles when using default settings. -
Organic Pigments for Digital Color Printing
Organic Pigments For Digital Color Printing Ruediger Baur and Hans-Tobias Macholdt R&D Pigments, Hoechst AG, Frankfurt/Main, Germany Abstract ency (decreasing transparency automatically means in- creasing hiding power). Also, aspects like lightfastness, Digital color printing (DCP) is becoming more important thermostability and eco/toxicology have to be covered by a versus traditional printing technologies. For electro-graphic- suitable organic pigment for toner use. These aspects are based printers, colored tribo (friction) toner creates the full influenced by both chemical constitution and solid state color image. Typically organic color pigments provide the parameters7 (particle size distribution, particle shape, crys- required color. They have to fulfil both coloristic and tallinity etc.) . electrostatic properties. These properties are the result of To attain the needed coloristic properties the dispersion the chemical constitution and solid-state characteristics of behaviour is of special relevance. In general, solid pigment the pigment. Low electrostatic influence together with high particles are classified in three groups7: tinctorial strength and appropriate transparency is useful. A new yellow pigment type of the benzimidazolone class 1. pigment agglomerates (particle size approx. 0.2-10µm) combines these aspects. The final electrostatic charge of the 2. pigment aggregates (particle size approx. < 1µm) toner is achieved by adding suitable charge control agents 3. primary pigment particles (particle size approx.<<1µm) (CCAs) to control toner charge both in magnitude and sign. Organic color pigments are typically provided in pow- Introduction der form. The single powder particles usually consist of agglomerates. Agglomerates are groups of small crystals In general terms, digital printing means a direct connection and/or smaller aggregates, joined at their corner and edges. -
Shades of Blue
Episode # 101 Script # 101 SHADES OF BLUE “Pilot” Written by Adi Hasak Directed by Barry Levinson First Network Draft January 20th, 2015 © 20____ Universal Television LLC ALL RIGHTS RESERVED. NOT TO BE DUPLICATED WITHOUT PERMISSION. This material is the property of Universal Television LLC and is intended solely for use by its personnel. The sale, copying, reproduction or exploitation of this material, in any form is prohibited. Distribution or disclosure of this material to unauthorized persons is also prohibited. PRG-17UT 1 of 1 1-14-15 TEASER FADE IN: INT. MORTUARY PREP ROOM - DAY CLOSE ON the Latino face of RAUL (44), both mortician and local gang leader, as he speaks to someone offscreen: RAUL Our choices define us. It's that simple. A hint of a tattoo pokes out from Raul's collar. His latex- gloved hand holding a needle cycles through frame. RAUL Her parents chose to name her Lucia, the light. At seven, Lucia used to climb out on her fire escape to look at the stars. By ten, Lucia could name every constellation in the Northern Hemisphere. (then) Yesterday, Lucia chose to shoot heroin. And here she lies today. Reveal that Raul is suturing the mouth of a dead YOUNG WOMAN lying supine on a funeral home prep table. As he works - RAUL Not surprising to find such a senseless loss at my doorstep. What is surprising is that Lucia picked up the hot dose from a freelancer in an area I vacated so you could protect parks and schools from the drug trade. I trusted your assurance that no one else would push into that territory. -
Predictability of Spot Color Overprints
Predictability of Spot Color Overprints Robert Chung, Michael Riordan, and Sri Prakhya Rochester Institute of Technology School of Print Media 69 Lomb Memorial Drive, Rochester, NY 14623, USA emails: [email protected], [email protected], [email protected] Keywords spot color, overprint, color management, portability, predictability Abstract Pre-media software packages, e.g., Adobe Illustrator, do amazing things. They give designers endless choices of how line, area, color, and transparency can interact with one another while providing the display that simulates printed results. Most prepress practitioners are thrilled with pre-media software when working with process colors. This research encountered a color management gap in pre-media software’s ability to predict spot color overprint accurately between display and print. In order to understand the problem, this paper (1) describes the concepts of color portability and color predictability in the context of color management, (2) describes an experimental set-up whereby display and print are viewed under bright viewing surround, (3) conducts display-to-print comparison of process color patches, (4) conducts display-to-print comparison of spot color solids, and, finally, (5) conducts display-to-print comparison of spot color overprints. In doing so, this research points out why the display-to-print match works for process colors, and fails for spot color overprints. Like Genie out of the bottle, there is no turning back nor quick fix to reconcile the problem with predictability of spot color overprints in pre-media software for some time to come. 1. Introduction Color portability is a key concept in ICC color management. -
Grayscale Lithography Creating Complex 2.5D Structures in Thick Photoresist by Direct Laser Writing
EPIC Meeting on Wafer Level Optics Grayscale Lithography Creating complex 2.5D structures in thick photoresist by direct laser writing 07/11/2019 Dominique Collé - Grayscale Lithography Heidelberg Instruments in a Nutshell • A world leader in the production of innovative, high- precision maskless aligners and laser lithography systems • Extensive know-how in developing customized photolithography solutions • Providing customer support throughout system’s lifetime • Focus on high quality, high fidelity, high speed, and high precision • More than 200 employees worldwide (and growing fast) • 40 million Euros turnover in 2017 • Founded in 1984 • An installation base of over 800 systems in more than 50 countries • 35 years of experience 07/11/2019 Dominique Collé - Grayscale Lithography Principle of Grayscale Photolithography UV exposure with spatially modulated light intensity After development: the intensity gradient has been transferred into resist topography. Positive photoresist Substrate Afterward, the resist topography can be transfered to a different material: the substrate itself (etching) or a molding material (electroforming, OrmoStamp®). 07/11/2019 Dominique Collé - Grayscale Lithography Applications Microlens arrays Fresnel lenses Diffractive Optical elements • Wavefront sensor • Reduced lens volume • Modified phase profile • Fiber coupling • Mobile devices • Split & shape beam • Light homogenization • Miniature cameras • Complex light patterns 07/11/2019 Dominique Collé - Grayscale Lithography Applications Diffusers & reflectors