Gra 633 - Midterm

Front 1

Which of the following is NOT a device Independent colour model: LCH, HSB, or RGB?

Back 1

RGB

Front 2

In order to see colours we need: Observer, Light source, Spectrophtometer, and/or Object

Back 2

Observer, Light source, and Object

Front 3

True or False: CMYK values are used to describe ink colours

Back 3

False

Front 4

True or False: 5000 K colour temperature is the only corrected way to view colours in the viewing booth

Back 4

false

Front 5

True or Flase: ∆Eab is commonly used in the industry because it provides more perceptually uniformed colour different values

Back 5

False

Front 6

Which of the following is not part of the human vision system: Optic nerce, Forvea, Retina, None of the above

Back 6

None of the above

Front 7

True or False: ICC use one of the Rendering Intents methods to map out-gamut colors into bigger gamut

Back 7

False

Front 8

True or False: "Colour Management System is controlling colour quality by science instead of trial -error"

Back 8

True

Front 9

True or False: Close-loop system is also know as Today's Colour Management System

Back 9

False

Front 10

Which of the following is not an ICC Profile type: Space profile, Monitor Profile, Device Link Profile, and/or Mobile Profile

Back 10

Mobile Profile

Front 11

True or False: SWOP 2013 contains updated data sets for Paper Type 3

Back 11

True

Front 12

ICC Stands for:

Back 12

International Colour Consortium

Front 13

Setting the LCD monitor to optimum brightness. This process is also called: Caibration, Conversion, Consistency, and/or Characterization

Back 13

Consistency

Front 14

Which of the following is NOT a calibration method to calibrate an output device: TVI, G7, 60% Dot Gain, None of the Above

Back 14

60% dot gain

Front 15

True or False: The characterization process of an inkjet printer includes setting ink density

Back 15

False

Front 16

True or False: The Consistency (optimization) process of a lithographic printing press includes selecting an appropriate printing specification like SWOP or GRACoL

Back 16

True

Front 17

NPDS stands for

Back 17

Neutral Print Density Curve

Front 18

Assuming the profiles are named for their respective devices, which of the following can be a sourec profile: HeidelbergPress.icc, PentaxCamera.icc, InkjetProofer.icc, None of the above

Back 18

PentaxCamera.icc

Front 19

ACE stands for

Back 19

Adobe Colour Engine

Front 20

Which of the following LUTs inside an output profile are based on Perceptual rendering Intent: A2B2/B2A2, A2B0/B2A0, A2B3/B2A3, A2B1/B2A1

Back 20

A2B0/B2A0

Front 21

If your monitor is calibrated to a colour temperature of 6500 K, this means that your RGB balance was setted to have: More red, more blue, more green, none of the above

Back 21

More blue

Front 22

Achieving the specified colour balance and gamma of a monitor device represents which process: Conversion, Calibration, Characterization, Consistency

Back 22

Consistency

Front 23

True or False: In Softproofing the second (2nd) conversion step would involve converting an image from the final desitination profile to the monitor profie using Relative colourimetric rendering Intent

Back 23

False

Front 24

True or False: LCD displays use incandescent backlight as their lighting source

Back 24

False

Front 25

Before you measure anything with a colour measurement device it needs to be setup. When the device is saying to itself, “Ok I’m supposed to see this white, but I’m seeing something slightly different. That means I’m behaving this way and will have to make this specific correction to all my measurements today”, what process is it going through?: Collaboration, Calculation, Calcification, Calibration

Back 25

Calibration

Front 26

CMY process inks are used in printing because they each subtract approximately X amount of the visible spectrum: X= 1/3, X= 3/4, X= 1/4, X= 2/3

Back 26

1/3

Front 27

If you look at a LED light source through a diffraction grating (allows you to see the spectrum spread out) and hold up a yellow filter between the light source and the grating, what part of the spectrum would go missing?: Green, Red, Yellow, Blue

Back 27

Blue

Front 28

Which of the following methods commonly used to describe colours that are independent of their nature of creation or the device they displayed on ? (select all that apply): L*A*B, CMYK, Pantone, XYZ, RGB

Back 28

L*A*B and XYZ

Front 29

True or False: Colour is only dependent on the spectral reflectance of the object.

Back 29

False

Front 30

True or False: Densitometers measure light absorption which is correlated to ink film thickness.

Back 30

True

Front 31

The most useful colour measurement device for colour management purposes is the… Densitometer, Colourimeter, Spectralmeter, Spectrophotometer

Back 31

Spectrophotometer

Front 32

True or False: A spectral colour graph can be known as a Spectral Power Distribution when talking about additive colour theory

Back 32

True

Front 33

Which of the following are used as coordinates on the chromaticity diagram: xy, XY, a*b*

Back 33

xy

Front 34

True or False: Xrite 530 measuring device is an example of a densitometer that contains RGB colour filters inside it to measure density

Back 34

False

Front 35

What is metamerism?

Back 35

Two colours that look the same under one illuminant but different under another

Front 36

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.

Back 36

True

Front 37

Which of the following is NOT one of the 4 C's of colour management? Characterization, Consistency, Conversion, Calculation, Calibration

Back 37

Calculation

Front 38

Measurement of a press sheet is an example of which of the 4 C’s of colour management? Characterization, Consistency, Calibration, Conversion, Calculation

Back 38

Characterization

Front 39

ICC is an example of what kind of colour management system? Two-way, one-way, closed-loop, open-system

Back 39

Open-system

Front 40

True or False: The gamut volume of an ICC profile reported by ColorThink Pro is the number of colours that device can reproduce.

Back 40

False

Front 41

True or False: Colour is only dependent on the spectral reflectance of the object.

Back 41

False

Front 42

True or False: “The ability of the human visual system to adjust to changes in illumination in order to preserve the appearance of object colours” is also called Chromatic Adaptation

Back 42

False

Front 43

Most monitor have a limited gamut in the ____ areas

Back 43

Cyan

Front 44

List the 3 monitor types

Back 44

CRT (Cathode ray Tubes) LCD (Liquid Crystal Display) OLED (Organic Light-Emitting Diode)

Front 45

CRTs use an to fire electrons at RGB coloured phosphors behind the glass

Back 45

Electron Gun

Front 46

LCDs _________ actually open and close allowing more or less light to pass from behind the screen out the front depending on the electrical charge

Back 46

Liquid Crystals

Front 47

In terms of the original LCDs what provides the back light

Back 47

Fluorescent backlight

Front 48

These backlight use a lot of ______ and have odd spikes in the ____ wave lengths

Back 48

Power and Green

Front 49

Newer LCDs use

Back 49

Led Backlight

Front 50

Some monitors have a setting that will adjust the temperature of the white point where lower temperatures are ___ __ and higher temperature are ___ ____

Back 50

More Red and More Blue

Front 51

Monitor calibration software will adjust the measured RGB values to fit inside the _____ ____, ____ ___, and __________ _______

Back 51

White point, black point and maximum RGB values

Front 52

Conversions for monitors are always made using ________________

Back 52

relative colourimetric rendering intent

Front 53

To softproof an image it must go through __ conversions

Back 53

2

Front 54

The first conversion is: from the _________ to the ______ using whatever rendering intent will be used on output

Back 54

Original source profile to the final destination profile

Front 55

The second is from the _______ to the _______ using the _______

Back 55

Final destination profile to the monitor profile using absolute colourimetric

Front 56

What is a Closed-loop workflow?

Back 56

looking up the device counts of the original colour and the corresponding device counts of the final output device

Front 57

What is an Open-system workflow (ICC)?

Back 57

device counts are converted through the profile connection space (PCS) as a common language

Front 58

What is always required to make a Colour Conversion?

Back 58

two colour spaces

Front 59

What does the Colour Management module (CMM) do?

Back 59

Handles the looking up of values and any calculations that may need to be done during a colour conversion

Front 60

A2B0/B2A0 is which rendering intent?

Back 60

Perceptual

Front 61

A2B1/B2A1 is which rendering intent?

Back 61

relative/abosolutre

Front 62

A2B2B2A2 is which rendering intent?

Back 62

Saturation

Front 63

Conversions are always made using…?

Back 63

Relative colourimetric rending intent

Front 64

Assign profile does what?

Back 64

An image file is Tagged or embedded with an ICC Profile

Front 65

Convert profile does what?

Back 65

goes through the conversion process to convert a given colour between two device colour spaces

Front 66

When it comes to a press what is the most important thing?

Back 66

they must be Consistent and repeatable

Front 67

The Press variable that affect consistency are?

Back 67

(4) Mechaincs, Paper, Ink, Prepress

Front 68

Making sure a press print to a set of known __________ so that it prints consistently from run to run

Back 68

Aim Points

Front 69

Aim point can be from…?

Back 69

Custom testing or standad industry points

Front 70

GRACoL Specifies ________ and recommends calibration methods based on gray blance (G7)

Back 70

Solid CMYK L*a*b

Front 71

GRACoL also specifies ____________ Paper (Specific white point)

Back 71

Type 1 and 2 sheet fed

Front 72

SWOP also Specifies __________ papers (Specific white points)

Back 72

Type 3 and 5 web offset

Front 73

ISO stands for…?

Back 73

International organization for standardization

Front 74

ISO _________ specifies and recommends for press colour Management

Back 74

12647-2

Front 75

ISO 12647-2 specifies ________________ and recommends calibration __________________

Back 75

ink aim points for CMYK soildes in L*a*b and Methods based on TVI

Front 76

FIRST stands for…?

Back 76

Flexographic image reproduction specification and tolerances

Front 77

SNAP stands for

Back 77

Specifications for non-headset advertising printing

Front 78

What are the Methods of Calibration…? (4)

Back 78

Density/50% dot gain, TVI – Tonal value increase, gray balance, and gray balance – g7

Front 79

The variables to adjust during calibration on press are…? (3)

Back 79

Ink film thickness (Solid primary colours), Ink trapping (secondary colours), Squeeze (Overall TVI)

Front 80

The variables to adjust during calibration on prepress are…? (3)

Back 80

should nto have to go back to original design files, CtP plate exposure (TVI, tonal reproduction, CtP tone Curve adjustment (TVI, tonal reproduction)

Front 81

Characterization is the _______ and _____ of colour to CMYK values

Back 81

Measuring and Linking

Front 82

ICC profiles ____________ with a device independent colour space like L*a*b or XYZ

Back 82

link device counts

Front 83

Colourimetric colour space is a common language for all profiles, known as _________?

Back 83

Profile connection space (PCS)

Front 84

ICC profile use __________ to record the links?

Back 84

Lookup Tables (LUTs)

Front 85

Each LUT is responsible for a ______ ____ form device counts to colourimetric values or the other way around (A2B or B2A)

Back 85

One-way link

Front 86

Types of ICC profiles (7)?

Back 86

Output, input, monitor, device link, N-channel, abstract, space

Front 87

Output profiles can be either ____ or ____ device counts

Back 87

CMYK or RGB

Front 88

Output profiles are a _________ that contain A2B and B2A LUTs

Back 88

two-way profile

Front 89

Output Profiles, ____are usually L*a*b but can be XYZ

Back 89

PCS

Front 90

Input Profiles can only be ____ device counts

Back 90

RGB

Front 91

Input profiles are _____ only profile containing A2B LUTs

Back 91

One-way

Front 92

Input Profiles, PCS is often ______ but can be _____

Back 92

L*a*b* , XYZ

Front 93

Monitor profiles use ___ device counts only

Back 93

RGB

Front 94

Monitor profiles are technically a __________ contain A2B and B2A LUTs

Back 94

Two-way profile

Front 95

Monitor profiles, PCS is most commonly ___ but can be _____

Back 95

XYZ , L*a*b

Front 96

Device link profiles are used to translate between _____ of the _____ of device counts

Back 96

Two sets , Same type

Front 97

N-channels profile is used for _______ with ______ or ______ inks

Back 97

complex printing with spot colours or non-CMYK inks

Front 98

N-channel device counts for _______

Back 98

n-channels (number of inks)

Front 99

N-channel, ____ profile containing A2B and B2A LUTs

Back 99

two-way

Front 100

Abstract profiles can be sued to ___________to other specific colours

Back 100

Adjust colours (ex. Sepia tones)

Front 101

Space profiles are used to convert ___________ spaces to a PCS (LCH to L*a*b)

Back 101

non-device colour

Front 102

______________ give you limited control over what you want to do with a colour hen converting between two colour spaces that do not match so that all colours can be printed

Back 102

Rendering intents

Front 103

Four methods of rendering intents, what are they?

Back 103

Perceptual, saturation, Relative colourimetric, and Absolute colourimetric

Front 104

Perceptual rendering intent attempt to keep the ______ ______ between all colours

Back 104

Relative difference

Front 105

Perceptual, out of gamut colours are ______ into the smaller gamut relative to one another

Back 105

Mapped

Front 106

Perceptual, In gamut colours are also remapped _______ to the source gamut

Back 106

relative

Front 107

Perceptual, alter all colours from original but maintain ______ and ______

Back 107

contrast, detail

Front 108

Perceptual is commonly used for converting RGB ______ for CMYK print where detail and pleasingness of colour is more important than exact colour matches

Back 108

photographs

Front 109

Saturation rendering intent is used to give you the ________ an most ______ colours

Back 109

brightest, saturated

Front 110

Saturation, most of the colours outside the gamut are mapped to the closet point within the smaller gamut but ______is pad to maintaining relative difference of the colours

Back 110

no attention

Front 111

Saturation, is only used for ______________ where colour is not a concern but vibrancy and _______ is such as in graph and charts

Back 111

Bright graphics and saturation

Front 112

Relative and absolute rendering intents attempt to ______________of anything inside both gamuts and _______ any out of gamut colour to just inside the smaller gamut

Back 112

Maintain the colour, remaps

Front 113

The difference between relative and absolut is how they account for the ____________

Back 113

Paper white

Front 114

Relative and absolute, colours inside the gamut will ____________ and colours out of gamut will be ________ to the closes point

Back 114

not be touched, remapped

Front 115

Relative is commonly used for ___________ where you want fairly accurate colour but also the ________________ possible and it is ok to rely on chromatic adaption

Back 115

Printing one-offs, the purest white

Front 116

Absolute is used for ______________________ where it will be held agansit a press sheet on different paper and _______________

Back 116

Accurate colour proofing, colour is critical

Front 117

RGB are _____ ____ that correspond with how much of an ______________ will be sent to a specific pixel of a monitor

Back 117

Computer numbers, Electrical charge

Front 118

RGB and CMYK values are individual to a ___________ under a specific set of condition

Back 118

Specific device

Front 119

CMYK values are just….?

Back 119

Area of ink coverage

Front 120

Colour management is what?

Back 120

Linking the colour you want to produce, with the method of producing it in a controllable and predictable way

Front 121

Closed-loop method of colour management is where?

Back 121

Each device in a workflow was tested to know what device counts produced the same colour as another set of device counts on another device

Front 122

Open-system colour management each device count was ______ to an actual colour in a format that was based on a mathematical representation of the human visual system

Back 122

linked

Front 123

What are the 4 c’s of colour management?

Back 123

Consistency, calibration, characterization, and conversion

Front 124

Consistency is any device must act in a ______ and _______ way

Back 124

Constant & predictable

Front 125

Calibration the device should be brought back to the ____________ the colour management is setup for?

Back 125

Known condition

Front 126

Characterization is _______ the response/output and ____ it to the known inputs

Back 126

Measuring – linking

Front 127

Conversion is converting _________________ into another

Back 127

one description of colour

Front 128

Retina ______ the light signals that transmitted by the optical nerves to the brain to be processed.

Back 128

Interprets

Front 129

Retina consists of a network of photosensitive cells (Rods & Cones) on the back of the eye that are sensititve to light energy between approcimately _____ to ____

Back 129

400mm – 700mm

Front 130

Rod cells are sensitive to ____ and the ______ in light and dark

Back 130

motion and fine differences

Front 131

Cone cells work at ________ levels, ______ that are sensitive to different ranges of visible light?

Back 131

high luminance, three types

Front 132

Long cones are sensitive to ___ medium cones aresensitive to ____ and short cones are sensitive to ___

Back 132

red, green, blue

Front 133

Optic never transfers _____________ from the rods and cones from the retina to the brain

Back 133

Electrical impulses

Front 134

CIE1931 standard observer is the _____________ ofd the responses of the human eye

Back 134

Mathematical representation

Front 135

CIE1931 is based on a ________

Back 135

2 degree field of view

Front 136

Chromatic adaptation is the eye adapts to ______ the brightest and most neutral (without chroma) object in your field of view as _____

Back 136

“see” , “white”

Front 137

Chromatic adaptation, not only does the eye _____________ but __________ relative to white?

Back 137

Adjust to the white, adjusts the perception of all colours

Front 138

RHEM sticker is a sticker that has colour critical proofs so that we are sure the…?

Back 138

light source they are being viewed under is correct

Front 139

2.0 delta e is…?

Back 139

Barely noticeable

Front 140

less than 5.0 delta e is a…?

Back 140

fair match

Front 141

index colour points you in the direction in some system where you will hopefully find some _____________

Back 141

actual description of colour

Front 142

CMYK is the _____ colour model?

Back 142

Subtractive

Front 143

Descriptive colour is based on _________ not science

Back 143

human language