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HSC200 > Lecture 6 > Flashcards

Lecture 6 Flashcards

(20 cards)

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1
Q

What is RGB

A

RGB: red/green/blue Additive colour: R+G+B= white The way colour is displayed on a monitor Based on light, not pigments

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2
Q

What is CMYK

A

CMYK: cyan/magenta/yellow/black Subtractive colour: remove inks to get white (i.e. the blank sheet of white paper) The way colour is printed on a page “Process colour”

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3
Q

What is gamut?

A

The range of colors a device can display or capture

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4
Q

Which has a wide gamut vs a small one?

A

Wide gamut: RBG
Small gamut: CMYK (think it keeps subtracting until small is left)

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5
Q

What has the widest gamut?

A

The human eye

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6
Q

What are the 3 different file formats

A

Delivery specific,production, platform

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7
Q

What is a TIFF file?

A

Tagged Image File Format

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8
Q

Who created TIFF

A

Aldus and microsoft. (but now owned by Adobe)

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9
Q

Which file formats are used for print?

A

TIFF and PDF

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10
Q

Which file formats are used for interactive media?

A

JPEG, GIF, PNG

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11
Q

Charcteristics of PDF

A

Developed by Adobe for platform-independent le interchange (use free Adobe Acrobat Reader) Replacing EPS as standard page description format Supports RGB, CMYK Contains pixel, vector, font and printer-specic information

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12
Q

What does PDF stand for?

A
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13
Q

GIF characteristics

A

Lossless vs lossy Lossy compression: GIF File size reduction due to reduced colour table (256 colours or shades of grey) Compression is irreversible Additional le size reduction by using as few colours as necessary

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14
Q

What does PNG stad for?

A

Portable Network Graphic (recursively: PNG, Not GIF)

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15
Q

PNG

A

Portable Network Graphic (recursively: PNG, Not GIF) Patent-free improvement over GIF Lossless data compression Supports 24-bit colour, greyscale and transparency Does not support CMYK, animation

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16
Q

What is resolution?

17
Q

3 factors for resolution by print?

Study These Flashcards
A

ppi, pixels per inch
dpi, dot per inch,
lpi, line per inch

18
Q

Resolution for web and interactive media?

19
Q

Resolution for print media

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A

1.5 to 2x the line screen print

20
Q

Types of compression

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A

Lossless: Redundancy reduction most efficient way of encoding colour infocreduces pixels by
formula is reversible
Ex:GIF
Lossy: JPEG-Irrelevancy reduction removes
Ex: JPEG

HSC200 (10 decks)

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