Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
70 Cards in this Set
- Front
- Back
|
There are 5 ways to describe colour. A Pantone number is an example of an ________ colour. |
index |
|
|
What is the most useful colour measurement device for colour management purposes? |
Spectrophotometer |
|
|
True or False
Device dependent digital counts do not mean colour. |
True |
|
|
CMY process inks are used in printing because they each subtract approximately ___/3 amount of the visible spectrum. |
1/3 |
|
|
Brian tells you he wants to print a greenish blue background for his poster. Which method did Brian use to describe colour? |
Descriptive colour |
|
|
The cells in human eyes that are sensitive to light and dark are known as _____ and the cells that are sensitive to colour are known as ______. |
rods cones |
|
|
If you look at a LED light source through a diffraction grating (allows you to see the spectrum spread out) and hold up a magenta filter between the light source and the grating, what part of the spectrum would go missing? |
Green |
|
|
True or False
Densitometers measure light absorption which is correlated to ink film thickness. |
True |
|
|
Device independent colour descriptive method could also be known as ___________________. |
colourimetric |
|
|
Measurement of a press sheet is an example of which of the 4 C’s of colour management? |
Characterization |
|
|
The small xy in xyY values define the ______ and ____________ of colour. |
hue and saturation |
|
Assuming a D50 light source and a standard observer, what is the approximate colour of the spectral reflectance graph shown here? |
Medium Green |
|
|
What is metamerism? |
Two colours that look the same under one illuminant but different under another |
|
|
In colourmetic colours, Tristimulus values can also be known as _____ . |
XYZ values |
|
|
Very _________ colours are the opposite of neutral. |
vibrant |
|
|
True or False
In a closed-loop colour management system each device in the system has to be tested and compared to every other device in the system |
True |
|
|
What does PCS stand for? |
Profile Connection Space |
|
|
ICC is an example of what kind of colour management system? |
Open Loop |
|
|
RGB is a set of digital counts usually from 0 to ____ (#) in three channels: red, green and blue. |
255 |
|
|
True or False
If you want to be able to use an ICC Profile in a program like Photoshop you should place it on the desktop of your computer. |
False |
|
|
The Y in xyY values refers to the __________ of a colour. |
lightness |
|
|
How many colour combinations are there in the additive colour theory? |
RGB - 16.6 million combinations |
|
|
In the human eye, light enters through the __________ before being focused by lens into the retina. |
cornea |
|
|
What are the 3 parts to the human visual system? |
eyes, optic nerve, brain |
|
|
When someone is has protanopia or deuteranopia, they can not see colour between the _____ and _______ |
red and greens |
|
|
True or False
The gamut volume of an ICC profile reported by ColorThink Pro is the number of colours that device can reproduce. |
False |
|
|
What type of cone cells are sensitive to blue wavelengths? |
short cones |
|
|
One way to determine colour _________ is to use the Famsworth-Munsell 100-Hue test. |
aptitude |
|
|
Viewing booths try to simulate _____ lighting using fluorescent tubes. |
D50 |
|
|
Describe chromatic adaptation. |
When your eye adapts to see the brightest and most neutral object in your field of view as white and adjusts the perception of all colours relative to that white. |
|
|
A Delta E less than ___ (#) is an average value for sheetfed press. |
5 |
|
|
Colour management is linking the desired colour to the method of producing it in a ____________ and _______________ way |
controllable and predictable |
|
|
What is the first international print standard? |
ISO 12647 |
|
|
True or False
Printing is no longer an art form, it is a manufacturing process. |
True |
|
|
What is the equation for Delta E? |
ΔE = sqrt[(L-L)^2 + (a-a)^2 + (b-b)^2] |
|
|
__________ ICC profiles are used for presses and inkjets printers. |
output |
|
|
What type(s) of ICC profile does not have a PCS but converts from device count to device count? |
device link profiles |
|
|
The colour temperature of monitors have a white point with higher temperatures are more _______ (colour) |
blue |
|
|
_____________ ICC profiles are used for complex printing with spot colours and nonCYMK inks. |
N-channel profiles |
|
|
What does LUTs stand for? |
Look Up Tables |
|
|
True or False
Only some devices are subjected to drift. |
False
All devices |
|
|
Flourescent tubes use a lot of power and have odd spikes in _______ (colour) wavelengths. |
green |
|
|
Scott sends you 5 RGB images of his dog to be converted to CMYK. You want to maintain the detail of the photo. What rendering intent do you use? |
perceptual |
|
|
What type(s) of ICC profile only uses RGB device counts? |
monitor profiles and input profiles |
|
|
The 4 press variables that affect consistency are __________, ink, ________ and paper. |
mechanics ink prepress paper |
|
|
True or False
The user must install a CMM for Apple products. |
False
by default, Apple has a CMM installed |
|
|
What type(s) of ICC profile is used to convert non-device colour spaces to a PCS? |
space profile |
|
|
______________ is the one rendering intent not used in the graphics arts industry. |
saturation |
|
|
After multiple tries, Wendy finally took a beautiful selfie and wanted to apply sepia tones to it. Which ICC profile type should Wendy use? |
abstract profile |
|
|
When Conner installed the Adobe Creative Suite to his laptop, it audomatically includes a custom CMM called Adobe _________ ________ . |
Adobe Colour Engine (ACE) |
|
|
A2B0/B2A0 LUTs are used with the _____________ rendering intent. |
perceptual |
|
|
True or False
Electronic files on the computer are always made through absolute colourimetric rendering intent. |
False
always relative |
|
|
What does CRT stand for? |
Cathode Ray Tunes |
|
|
Monitors have a limited gamut in the ________ (colour) direction. |
cyan |
|
|
Name a pro and a con to using LED backlit screens. |
Pro - energy efficient, brighter Con - requires more measurement due to unpredictable characteristics |
|
|
What are the 3 variables that can be adjusted on press during calibration? |
ink film thickness ink trapping squeeze |
|
|
What does LCD stand for? |
Liquid Crystal Display |
|
|
The colour temperature of monitors are usually around _________ K or ________ K to simulate D50 light temperature. |
5000K or 5500K |
|
|
The colour temperature of monitors have a white point with lower temperatures are more _______ (colour) |
red |
|
|
What are the 3 variables that can be adjusted in prepress during calibration? |
in original files CtP plate exposure CtP tone curve adjustment |
|
|
Soft proofing requires 2 conversions: original source to _______ _____________ profile to monitor profile. |
final desination |
|
|
What is the oldest method of calibration for the colour management of the printing press? |
density and 50% dot gain |
|
|
True or False
Optimal brightness defined by TAPPI is 450nm. |
True |
|
|
What does NPD stand for? |
Neutral Print Density |
|
|
White light are all wavelengths emitted at ________ proportion. |
equal |
|
|
The wavelengths of spectral reflections are as follows: blue is 400nm-______nm green is 550-600nm red is 650-700nm |
450nm |
|
|
When a wavelength is 60% reflected, How much is absorbed? (%) |
40% is absorbed |
|
Identify the colour of each line. |
red - cyan green - magenta blue - yellow |
|
Identify the colour of each line. |
red - 100% K green - 0% K blue - 5-% K |
|
What colour is the red line? |
50% yellow |
