Lesson 7.5. Raster Images and Image Manipulation Techniques

Question 1

a single point or the
smallest single element in a display
device.

Answer 1

pixel

Question 2

images are made of
pixels.

Answer 2

Raster Images/Graphics

Question 3

• Formed by a digital camera
• Measured in picture elements or
  “pixels”

Answer 3

Raster Graphics

Question 4

Used for most digital
photos but “lossy”
(gradually losses quality
when resized or
manipulated).

Answer 4

jpeg

Question 5

jpeg stands for

Answer 5

Joint Photographic Experts Group

Question 6

Best for line
drawings and
animations. 256
colors maximum.
No loss

Answer 6

gif

Question 7

gif stands for

Answer 7

graphics interchange format

Question 8

gif vs jpg

Answer 8

• for images, jpg is better for quality and file size
• for line art, gif is better both for quality and file size

Question 9

Other Common Raster Image Formats

Answer 9

bmp, tif, png, raw

Question 10

bmp stands for

Answer 10

bitmap

Question 11

every pixel stored individually

Answer 11

bmp

Question 12

Standard in many technical applications. No loss

Answer 12

tif

Question 13

tif stands for

Answer 13

Tag Image File Format

Question 14

Lossless image format

Answer 14

png

Question 15

png stands for

Answer 15

Portable Network Graphics

Question 16

Data as captured by digital camera, particularly
DSLR camera.

Answer 16

raw

Question 17

DSLR stands for

Answer 17

digital single lens reflex

Question 18

five popular raster graphic software

Answer 18

microsoft paint, adobe photoshop, corel photopaint, pixlr, gimp

Question 19

open source software similar to Adobe
Photoshop

Answer 19

Gimp

Question 20

are created from
mathematical formulas used to
define lines, shapes and curves.

Answer 20

vector graphics

Question 21

drawing points; square points on line/curved objects

Answer 21

node

Question 22

blue line when drawing vector graphics

Answer 22

handle

Question 23

vector graphics are edited in

Answer 23

draw programs

Question 24

uses of vectors

Answer 24

graphics that will be scaled/resized, cartoons and clipart, graphics on websites, and fonts/specialized text effects

Question 25

what are examples of graphics that will be scaled or resized

Answer 25

architectural drawings/CAD programs, flow charts and logos

Question 26

why do we use vector graphics on websites?

Answer 26

because they have very small file sizes, which allows them to load quickly

Question 27

what are the disadvantages of vectors

Answer 27

lower color quality, does not support as many colors, not good for photographic images

Question 28

common vector file formats

Answer 28

SVG, CDR, DXF, and WMF

Question 29

SVG stands for

Answer 29

scalable vector graphics

Question 30

Standard format created by W3C, Versatile, all-purpose vector format

Answer 30

SVG

Question 31

CDR stands for

Answer 31

Corel Draw | Corel Draw Vector Drawing File

Question 32

DXF stands for

Answer 32

Drawing Exchange Format

Question 33

vectors made in AutoCAD

Answer 33

DXF

Question 34

file extension for vector graphics made in CorelDraw

Answer 34

CDR

Question 35

WMF stands for

Answer 35

Windows Metafile

Question 36

old vector image format designed by microsoft in the early 1990s

Answer 36

WMF

Question 37

examples of popular vector graphic software

Answer 37

Adobe Illustrator, CorelDraw, AutoCAD, Inkscape, Xara Xtreme

Question 38

open source software similar to Adobe Illustrator.

Answer 38

Inkscape

Question 39

what makes vectors different from raster

Answer 39

good for preserving sharpness after rescaling, not good for natural scenes, hard to construct

Question 40

what makes raster different from vector

Answer 40

does not preserve sharpness after resizing, good for natural scenes, easy to construct

Question 41

Common Vector File Formats

Answer 41

AI and EPS

Question 42

# vector file format AI stands for

Answer 42

adobe illustrator

Question 43

EPS stands for

Answer 43

encapsulated postscript

Question 44

- Industry standard used by developers of vector graphics. - Used to create, save, and archive original artwork.

Answer 44

AI

Question 45

- Meta Graphic - Graphics developers generally save a copy of the AI file in EPS format because it can be opened by computers running different operating systems. - Preferred format for vendors/clients who use the graphics in publications due to its portability.

Answer 45

EPS

Question 46

3 image manipulation principles

Answer 46

1. choose the right file format 2. choose the right image size 3. caption it

Question 47

Cutting parts away to remove distracting or irrelevant elements.

Answer 47

cropping

Question 48

The ambience and the tone of light of the picture (ex. Warm or cool light)

Answer 48

color balance

Question 49

One of the most basic techniques in image editing, making the image darker or lighter.

Answer 49

brightness and contrast

Question 50

The higher the quality and the larger the photo is, the bigger the file size of the picture is.

Answer 50

compression and resizing

Question 51

Making the image look sketched, grainy, classic black and white or even let it have neon colors. This gives your image a twist from its original look.

Answer 51

filters

Question 52

Copying or duplicating a part of an image.

Answer 52

cloning

Question 53

Adding background to make your image stand out.

Answer 53

changing the background

Question 54

Removing certain colors in your image or desaturating the color of the image.

Answer 54

removing the color

Question 55

Adding multiple elements in your layout.

Answer 55

combining text, graphics, and image