Unit H: Digital Media
TRUE/FALSE
1. Digital cameras often store photos in JPEG or TIFF formats.
2. Digital cameras store images on removable solid-state storage media.
3. In order to use infrared technology to transfer images from a digital camera to your computer, you
must have a FireWire port.
4. Solid-state storage, such as used for digital cameras, can hold data without using power.
5. Bitmap graphics take a lot of storage space.
6. When you use graphics software to reduce the resolution of an image, part of the image is cropped out.
7. GIF file format is a public domain format without restrictions, and is used for Web graphics.
8. Dithering is a way to increase the resolution of a graphic.
9. Color monitors display colors based on the intensity of red, blue, and yellow signals it receives.
10. When a pixel appears white on a monitor, it means that the color signals are set to the maximum
intensity.
11. A True-Color bitmap displays photographic-quality images.
12. Vector graphics are three-dimensional.
13. Vector graphics resize better than bitmaps.
14. Vector graphics require more storage space than bitmaps.
15. Rasterization is the process for converting a bitmap into a vector graphic.
16. Vector graphics can be created using scanners.
17. Corel DESIGNER is a popular drawing software program.
18. A vector graphic is being created in the above figure.
19. Pixar and DreamWorks are examples of studios that use 3-D animation techniques.
20. 3-D computer game animation happens in real time.
21. AutoCad is an example of 3-D animation software.
22. Some PDAs can be configured to play digital videos.
23. Analog video retains its image quality no matter how many times it has been copied.
24. Video capturing software allows you to start and stop the transfer, select the frame rate, and choose a
file format
25. To make your video more interesting, ask the subjects to wear multi-colored patterns.
26. Analog video cameras generally produce higher quality video than digital video cameras.
27. A video capture device can convert analog video into digital format.
28. Editing a video by recording segments from one videotape onto another is called nonlinear editing.
29. The size of the video window depends on the size of the monitor on which it is viewed.
30. MPEG is an example of codec software.
31. Streaming video is best viewed using a dial-up connection.
32. Reducing the frame rate of a video can make it blurry.
33. The figure above represents analog sound waves.
34. Waveform audio is a digital representation of sound.
35. MP3 is a popular waveform audio file format.
36. A MIDI-capable sound card contains a set of prerecorded musical instrument sounds.
37. Waveform audio files are more compact than MIDI files.
38. MIDI is a great way to store vocal sounds.
39. The graphic shown in the above figure is a grayscale bitmap.
MULTIPLE CHOICE
1. To convert a printed image into a digital graphic, use a(n) ____.
a.
imagizer
c.
scanner
b.
raster
d.
digital camera
2. Which of the following is a method of transferring images without using cables?
a.
Wi–Fi
c.
FireWire
b.
USB
d.
Docking station
3. Which of the following is NOT a way to create a bitmap graphic?
a.
Using a scanner
c.
Using a digital camera
b.
Creating each part as a separate object
d.
Drawing using paint software
4. Bitmap graphics can be saved in all of the following file formats EXCEPT ____.
a.
BMP
c.
MIDI
b.
TIFF
d.
PNG
5. Which of the following graphics file formats is the native format for Microsoft Windows?
a.
TIFF
c.
PNG
b.
JPEG
d.
BMP
6. Pixel ____ is a method of increasing the resolution of a bitmap graphic.
a.
interpolation
c.
rasterization
b.
extrapolation
d.
dithering
7. The process of using patterns of two or more colors to produce the illusion of additional colors and
shading is called ____.
a.
rasterization
c.
vectoring
b.
dithering
d.
rendering
8. A(n) ____ bitmap displays 16.7 million colors, and can also define special effects.
a.
True Color
c.
32-bit
b.
24-bit
d.
3-D
9. An image that has a flat, cartoon-like quality is most likely a(n) ____ graphic.
a.
vector
c.
rasterized
b.
bitmap
d.
monochrome
10. Which of the following is NOT a filename extension for vector graphics?
a.
.pict
c.
.dxt
b.
.wmf
d.
.tiff
11. SWF graphics are created using ____.
a.
Adobe Photoshop
c.
Macromedia Dreamweaver
b.
Macromedia Flash
d.
AutoCAD
12. An input device called a(n) ____ has a flat surface used to turn a paper-based line drawing into a
vector graphic.
a.
scanner
c.
digitizing tablet
b.
rasterizer
d.
ray tracer
13. In the figure above, the item labeled 2 represents the ____.
a.
rendered portion
c.
ray
b.
gradient
d.
wireframe
14. In the figure above, the item labeled 1 represents the ____.
a.
rendered portion
c.
ray
b.
gradient
d.
wireframe
15. The higher the ____ of a video, the better the video image.
a.
resolution
c.
color depth
b.
density
d.
frame rate
16. Most ____ provide a FireWire or USB port to transfer data to a computer.
a.
digital video cameras
c.
cell phones
b.
scanners
d.
digitizing tablets
17. A CD____ is software that copies tracks from an audio CD and stores them in Wave format.
a.
streamer
c.
digitizer
b.
ripper
d.
ray tracer
18. Speech ____ is the process by which machines produce sounds that resemble spoken words.
a.
recognition
c.
synthesis
b.
notation
d.
composition
19. The graphic shown in the above figure is a(n) ____ bitmap.
a.
grayscale
c.
True Color
b.
monochrome
d.
rasterized
COMPLETION
1. A bitmap graphic is also called a(n) ____________________ graphic.
2. In a bitmap graphic, each ____________________ is assigned a color, which is stored as a binary
number.
3. Bitmap graphics are resolution ____________________.
4. The ____________________ of an image grid refers to the grid used for printing on paper or
displaying on a monitor.
5. A Web ____________________ is the standard set of colors used by Internet browsers.
6. Digital camera manufacturers express the resolution of an image in ____________________.
7. Any text in a(n) ____________________ graphic is stored on the Web as text, so it can be found using
search engines.
8. Web graphics in ____________________ format are automatically resized when displayed on
different screens or when printed.
9. A ____________________ is applied to create shading and three-dimensional effects in an image.
10. A graphic that contains both bitmap and vector data is called a(n) ____________________.
11. To convert a bitmap graphic into vector format, use ____________________ software.
12. The process of covering a wireframe with surface color in a 3-D image, as shown in the above figure,
is called ____________________.
13. A(n) ____________________ is a series of frames.
14. A(n) ____________________ video is constructed and displayed using a PC.
15. A(n) ____________________ video stores the video as a continuous track of magnetic patterns.
16. Most digital cameras provide a(n) ____________________ port to transfer images to a computer.
17. A(n) ____________________ is software that compresses a file when a desktop video is created, and
decompresses the file when the video is played.
18. Video that starts to play a small segment on your computer while the rest is downloaded to your
computer is called ____________________ video.
19. On a Web page, a video that uses the <embed> tag is called a(n) ____________________ video.
20. The audio clips in the figure above show different ____________________ rates of a sound file.
21. Sound units called ____________________ are strung together by speech synthesizers.
MATCHING
Match the graphics term with its definition
a.
Resolution
e.
True Color
b.
Density
f.
Dithering
c.
Cropping
g.
Metafile
d.
Color depth
h.
Rendering
1. Using patterns of two or more colors to add shading and additional colors.
2. The number of horizontal and vertical pixels.
3. Covering a wireframe with surface color and texture.
4. Expressed as ppi on a monitor.
5. Contains both bitmap and vector data.
6. Removing part of an image.
7. A graphic that uses the full range of colors.
8. The number of colors available for use in an image
Match the desktop video file format with its description.
a.
AVI
c.
MPEG
b.
QuickTime Movie
d.
Real Media
9. The most common format for desktop videos; called “Video for Windows.”
10. Used for both desktop videos and DVD movies.
11. A popular format for streaming Web videos.
12. Originally developed for the Mac platform.
Match the waveform audio file format with its description.
a.
MP3
c.
Wave
b.
RealAudio
d.
Advanced Audio Compression
13. Supported by browsers without a plug-in; large, uncompressed files.
14. Compressed files produce good sound quality; requires a stand-alone player or browser plug-in.
15. High degree of compression; low sound quality.
16. Files are copy protected and use is limited to approved devices.
ESSAY
1. Describe some of the methods for retrieving images from a digital camera.
2. What is the difference between resolution, density, and color depth when referring to bitmap graphics?
3. What are some of the advantages and disadvantages to using vector graphics?
4. What are some steps to ensure that you are creating a good desktop video?
5. What are some methods to reduce the size of your video?