1. Introduction to Colour Management
Digitisation Of Heritage Materials
Introduction to Colour Management
CCHAD Project
Introduction To Colour Management

2. 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

3. 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

4. Human Vision - Brightness
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Human Vision - Brightness
Grey and White
SAME SHADE OF GREY!!!
Introduction To Colour Management

5. Human Vision - Contrast
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Human Vision - Contrast
THE SQUARES ARE GREY!!!
Introduction To Colour Management

6. White light components
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Concept of White Light
White light is composed of all visible colours
White light components
White light
Prism
Introduction To Colour Management

7. 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.

8. Light sources

9. RGB - Red, Green, Blue Digitisation Of Heritage Materials
Introduction To Colour Management

10. CMYK Cyan, Magenta, Yellow, blacK
Digitisation Of Heritage Materials
CMYK Cyan, Magenta, Yellow, blacK
Introduction To Colour Management

11. Colour spaces and gamut
Digitisation Of Heritage Materials
Colour spaces and gamut
Colour Space – specified range
of displayable colours, used
for a specific purpose,
e.g. CMYK colour space
is used for printing.
GAMUT - range of colours
that a colour system can
display, capture or print
Introduction To Colour Management

12. 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

13. Colour Management basics
Digitisation Of Heritage Materials
Colour Management basics
Colour calibrate monitors (screens)
Create ICC colour profiles for the devices (scanners & cameras if applicable)
Create ICC colour profiles for output devices (printers)
Introduction To Colour Management

14. Screen colour calibration
Special devices, together with dedicated software are being used for
Colour calibration of monitors.

15. Capture devices colour calibration
Digitisation Of Heritage Materials
Capture devices colour calibration
Special software and hardware is used to calibrate devices and ensure correct colour
Introduction To Colour Management

16. 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.
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 Viewer, Irfanview, GIMP), etc. MS Windows programs are often not the best option to use.
Introduction To Colour Management

17. Benefits of system calibration
Digitisation Of Heritage Materials
Benefits of system calibration
Consistent colour across various platforms – e.g. print matches the original
Reduced time to obtain good colour results
Much better chance of reproducing accurate colours in the future (better archival properties)
Introduction To Colour Management

18. Xrite Colorchecker passport
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Xrite Colorchecker passport
Colour management option
$159 as of July 2019
Can be used with free software CoCa at
Introduction To Colour Management

19. CCHAD Project – Coffs Harbour Council
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CCHAD Project – Coffs Harbour Council
Andrew Stawowczyk Long
Phone: +61 (0)
Introduction To Colour Management