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Introduction to Colour Management
Digitisation Of Heritage Materials Introduction to Colour Management DOHM Digitisation of Heritage Materials Introduction To Colour Management
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Colour is always device dependent!!!
Digitisation Of Heritage Materials The same image displayed on three different, uncalibrated systems Colour is always device dependent!!! Introduction To Colour Management
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Human Vision - Colour SAME COLOUR!!! Dot colour 1 Dot colour 2
Digitisation Of Heritage Materials Human Vision - Colour SAME COLOUR!!! Dot colour 1 Dot colour 2 Introduction To Colour Management
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Human Vision - Brightness
Digitisation Of Heritage Materials Human Vision - Brightness Grey and White SAME SHADE OF GREY!!! Introduction To Colour Management
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Human Vision - Contrast
Digitisation Of Heritage Materials Human Vision - Contrast THE SQUARES ARE GREY!!! Introduction To Colour Management
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White light components
Digitisation Of Heritage Materials Concept of White Light White light is composed of all visible colours White light components White light Prism Introduction To Colour Management
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Human Eye Spectral Sensitivity
There are three types of colour sensitive photo-receptors (cones) in the human eye. They are mostly sensitive to blue, green and red spectrum of light.
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Light sources
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RGB - Red, Green, Blue Digitisation Of Heritage Materials
Introduction To Colour Management
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Computer Monitors Magnified
Digitisation Of Heritage Materials Computer Monitors Magnified LCD monitor CRT monitor 1 pixel Colour perception by the eye Introduction To Colour Management
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CMYK Cyan, Magenta, Yellow, blacK
Digitisation Of Heritage Materials CMYK Cyan, Magenta, Yellow, blacK Introduction To Colour Management
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CMYK print Digitisation Of Heritage Materials
Introduction To Colour Management
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Colour spaces and gamut
Digitisation Of Heritage Materials Colour spaces and gamut GAMUT - range of colours that a colour system can display, capture or print Introduction To Colour Management
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ICC profiles How they work
Digitisation Of Heritage Materials ICC profiles How they work (colours converted from the “special” universal standard space into output device colour space) Profile attached to image Monitor STANDARD COLOUR SPACE Profiles used to correct output colours (colours converted from capture device colours into the “special” universal standard space colours) Original Image Printer ICC colour profile - information about how digital devices subjectively “see” colours Introduction To Colour Management
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Colour Management basics
Digitisation Of Heritage Materials Colour Management basics Calibrate monitor Calibrate input devices (scanners & cameras if applicable) Calibrate output devices (printers) Introduction To Colour Management
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Professional colour calibration
Digitisation Of Heritage Materials Professional colour calibration Special software and hardware is used to calibrate devices and ensure correct colour Introduction To Colour Management
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Practical Colour Management
Digitisation Of Heritage Materials Practical Colour Management Calibrate the monitor using an appropriate device (eg. Spyder Express, GretagMacbeth). Follow the prescribed procedure carefully. Check in computer’s “DISPLAY PROPERTIES > ADVANCED > COLOR MANAGEMENT” that the created profile has been installed and is selected as default. If not, install it manually. When you view images or want to print them out, make sure that you open them in software that uses ICC colour management (eg. Adobe Photoshop, Photoshop Elements, FastStone) , and colour management is switched on. Introduction To Colour Management
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Benefits of system calibration
Digitisation Of Heritage Materials Benefits of system calibration Consistent colour - print matches the original Reduced time to obtain good colour results Images look the same on different computer systems and monitors Much better chance of reproducing accurate colours in the future (better archival properties) Introduction To Colour Management
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QPCard 201 http://www.qpcard.se How to use it?
Digitisation Of Heritage Materials QPCard 201 How to use it? Go to and watch the instructional video Introduction To Colour Management
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Colour links International Color Consortium (ICC) – www.color.org
Digitisation Of Heritage Materials Colour links International Color Consortium (ICC) – ColorVision - ment1.php Microsoft - color/default.mspx Introduction To Colour Management
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Digitisation Of Heritage Materials
Andrew Stawowczyk Long .au Phone: Skype: andrewstawowczyklong Introduction To Colour Management
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