Color Management( Postscript, Pdf And Raster)

Front 1

PostScript

Back 1

Means of transferring graphics between different applications and devices

Front 2

PDF

Back 2

Alternative output to PostScript

Front 3

PDF and PostScript share the same what?

Back 3

Imaging Model

Hint 3

Image

Front 4

Which of the 2 are preferred for RIP?

Back 4

PDF

Front 5

What is RIP?

Back 5

Raster Image Processor

Front 6

Some Benefits to PostScript

Back 6

-Can handle almost all input color spaces
-Has dictionaries
-uses look-up tables

Front 7

Some PostScript Limitations

Back 7

-Trapping is complicated or impossible
-Hard to edit in PostScript
-Lack of page independence, difficult to split document for imposition

Front 8

some PostScript 3 additions

Back 8

-Raster Masks, clipping paths can be converted to raster masks
-Smooth shading, gradient fills can be specified as high resolution color transitions
-Better integrated with ICC profiles

Front 9

PDF Benefits

Back 9

-Page Independence
-Editablility
-more robust and less eroor-prone structure

Front 10

What are the contents of a PDF file?

Back 10

Header, Body, Cross-Reference table(look-up tables), Trailer

Front 11

PDF Weaknesses

Back 11

-Inability to include some types of trap info
-Embedding of TrueType fonts
-Lack of color managed screen display

Front 12

Computer produced graphical information is in what form?

Back 12

vector

Hint 12

not raster

Front 13

Output devices are ?

Back 13

raster devices

Hint 13

not vector

Front 14

To convert vector info for raster devices what must happen?

Back 14

Map the vector shapes onto the individual pixels of the output device

Front 15

RIP A.K.A.?

Back 15

Scan Conversion

Front 16

What is the RIP process?

Back 16

Coverts interpreted page description into individual device pixels

Front 17

can you print pixels or dots?

Back 17

Dots only

Front 18

What is ROOM?

Back 18

Rip Once Output Many

Front 19

When can you edit with RIP?

Back 19

Until final output

Front 20

When RIPing a PostScript what becomes editable?

Back 20

Some things but not bleeds and traps

Front 21

Some Device Dependent output functions

Back 21

-Conversion to device color space
-halftoning
-dot gain
-trapping
-imposition

Front 22

The future of RIP

Back 22

Rapid advance with many new developments

Front 23

RIP uses what kind of grid?

Back 23

Halftone(only in software)

Front 24

Gray Levels
0% black
25%
50%
75%
100%

Back 24

0% black No Spots On
25% 1 of 4 spots on
50% 1/2 spots on
75% 3 of 4 spots on
100% all spots on

Front 25

What is the super-imposed grid?

Back 25

Halftone grid set over the imagesetter grid

Front 26

What are the benefits of the Super-imposed grid?

Back 26

Tinier dots, better detail, color, saturation

Front 27

Super-imposed grid is also referred to as ?

Back 27

Hi-Fine Screen

Front 28

What is Stochastic or FM Screening?

Back 28

Randomly placed dots rather than halftone dots alligned along grid

Front 29

Applications of FM screening?

Back 29

-High-end Commercial printers
-High-end color work
-Magazines and newspapers

Front 30

Advantages to Stochastic?

Back 30

-No Moire pattern
-easier registration
-higher quality at lower resolutions
-smooth tone rendering

Front 31

Reasons files fail to output correctly

Back 31

-Incorrect Trapping
-wrong Color Space
-Images in wrong file format
-Graphics not linked
-missing graphics
-Incorrect Resolution

Front 32

You should maintain workflow in what color space?

Back 32

RGB (including conventional and inkjet printing)

Front 33

Color images can be output as what two things?

Back 33

Separations or composite color(all in same file)

Front 34

You should keep your files as what?

Back 34

RGB Composites

Front 35

Web resolution?

Back 35

72 or 96 for new monitors

Front 36

Web images

Back 36

-Quality requirements are lower
-Minimize image file size
-Jpeg compression

Front 37

Graphics elements can be created in what color space?

Back 37

ANY as long as an ICC profile defining the color space is available

Front 38

What is proofing?

Back 38

Allows the job to be preview before printing and check and correct errors at the last minute.

Front 39

Reasons for proofing

Back 39

-approve or correct job
-to preview your concept
-to agree with client and printer on the service being completed

Front 40

Proofing stages or common types of proofs?

Back 40

Visual, Design Proof, and final color proof

Front 41

What is a visual proof?

Back 41

Rough proof for client approval prior to page layout

Front 42

What is a design proof?

Back 42

Or comprehensive proof shows the finished design with all text and visual elements

Front 43

What is a Final Color Proof?

Back 43

Simulates final completed job

Front 44

Requirements of proofing systems?

Back 44

-Resolution
-consistancy
-economy
-speed

Front 45

What is Soft Proofing?

Back 45

When an image or design is proofed in digital form

Front 46

Benefits of soft proofing

Back 46

-Ability to edit repeatedly
-No need to transfer files to another output device
-Can be transmitted electronically
-Eliminates need to transport physical media
-used for color approval
-Saves time and money

Front 47

Problems with color approval and soft proofing?

Back 47

-Screen image may not match color of final print
-Sometimes different color gamuts
-No physical record of showing client or client approval

Front 48

Soft Proofing best as long as...

Back 48

-Standard viewing conditions(d50)
-Monitors are calibrated
-Color management systems and ICC profiles used
-Works well with PDF

Front 49

Soft proofing A.K.A.?

Back 49

Remote Proofing

Front 50

Factors in choosing proofing system?

Back 50

-Cost of producing proofs
-Importance of color accuracy
-ease of making changes
-Degree of interpretation necessary