Matching Colours
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Matching Colours Franc Farres & Ferran Peñalver Barcelona, Oct 31st 1
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Transcript of Matching Colours
Matching ColoursFranc Farres & Ferran Peñalver
Barcelona, Oct 31st
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Do we really need...color management ?
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What is Color Managemet ?
CM is everywhere !
Adobe Creative Suite
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What is Color Managemet ? PDF Export from ID
In this field it is very important to select the proper colour conversion settings yourself: – please check with your output provider which ICC profile is appropriate, or select the ICC profile that was used for converting images to CMYK in PhotoShop or InDesign. – For WebCmykHiRes _1v4, we recommend you to use the ISOcoated_v2_300_eci ICC profile
Colours in your document will change if: – objects in RGB colour space with or without ICC profiles are used in the document – CMYK objects with different ICC profiles are placed in the document
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What is Color Managemet ?
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What is Color Managemet ?
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What is Color Managemet ?
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ICC profiles
In color management, an ICC profile is a set of data that characterizes a color input or output device, or a color space, according to standards promulgated by the International Color Consortium (ICC).
Profiles describe the color attributes of a particular device or viewing requirement by defining a mapping between the device source or target color space and a profile connection space (PCS). This PCS is either CIELAB (L*a*b*) or CIEXYZ. Mappings may be specified using tables, to which interpolation is applied, or through a series of parameters for transformations.
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Every device that captures or displays color can be profiled. Some manufacturers provide profiles for their products, and there are several products that allow an end user to generate his or her own color profiles, typically through the use of a tristimulus colorimeter or preferably a spectrophotometer.
ICC profiles
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ICC profiles and LAB www.color.org rgb profiles, cmyk profiles (printer profiles)
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3 Levels of standardsThe word “standard” is often used wrongly
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3 Levels of standards
The word “standard” is often used wrongly
ISO, CIE, IEC Standard – Following the procedures of a worldwide recognized authority => norm
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3 Levels of standards
The word “standard” is often used wrongly
ISO, CIE, IEC Standard – Following the procedures of a worldwide recognized authority => norm
De-Facto standards – Code of practices defined by a industry, sector, branch => technical specification
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3 Levels of standards
The word “standard” is often used wrongly
ISO, CIE, IEC Standard – Following the procedures of a worldwide recognized authority => norm
De-Facto standards – Code of practices defined by a industry, sector, branch => technical specification
House standard – Company grown procedures and requirements
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Where to find the standard profiles for offset printing?
www.eci.org
The download archive ECI Offset 2009 contains the following ICC profiles:
ISO Coated v2 (ECI) ISO Coated v2 300% (ECI) PSO LWC Improved (ECI) PSO LWC Standard (ECI) PSO Uncoated ISO12647 (ECI) ISO Uncoated Yellowish SC Paper (ECI) PSO MFC Paper (ECI) PSO SNP Paper (ECI) PSO Coated NPscreen ISO12647 (ECI) PSO Coated 300% NPscreen ISO12647 (ECI) PSO Uncoated NPscreen ISO12647 (ECI)
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Key Players
Paper Type / SubstratePrinting Device or Press
(sheet-fed offset, web-offset, digital, inkjet, etc...)InksPlates and platemaking processDot ShapeScreening/Ruling
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Solid Ink Density (SID values)
CIAN (Fogra39) – Target Values: L55.00 a-37.00 b-50.00
SID: 1,20 deltaE 7.43
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Solid Ink Density (SID values)
CIAN (Fogra39) – Target Values: L55.00 a-37.00 b-50.00
SID: 1,20 deltaE 7.43SID: 1,45 deltaE 2.30
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Adjusting TVI curves (DGC in-Rip)
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Adjusting TVI curves (DGC in-Rip)
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Adjusting TVI curves (DGC in-Rip)
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Adjusting TVI curves (DGC in-Rip)
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ISO 12647-7 (contract proofs)
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Managing LUTs on HP
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Managing LUTs on HP
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Managing LUTs on HP
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PSD Handbook 2012 (fogra)
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If You Don't Measure It, You Won't Manage It
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Thank you !
