and All Correct Answers 2025-2026
Updated.
Quantizing - Answer how many discrete values (bits) will be used to represent each pixel -
represents the color combinations
Sampling - Answer breaking the media up
graphic Attributes - Answer image quality: image resolution, image bit depth
Image Resolution - Answer ppi/dpi: the number and spacing of pixels in an image
increase in pixels = increase in quality of detail in the resolution
Web graphics - Answer 72 dpi
Laser Printers - Answer 300-600 dpi
high end imagesetters - Answer 1200 dpi, 2400 dpi
Image size - Answer The physical dimensions of an image
Decreasing size of an image.... - Answer increases its resolution
Increasing the size of an image - Answer decreases its resolution
Image Bit depth (Colour Depth) - Answer maximum number of colours used to represent an
image
- the more bits used, the more colour info
- human eye can only see 10 million colours so we only use 24 bit colour (16 million)
Universally Supported files - Answer JPG, GIF
Proprietary files (native files) - Answer default files used by specific software applications,
can be bitmap or vector - PSD, DWG
,- can save in both native and universal format
PSD - Answer Photoshop
♣ Software-specific image properties can only be retained when an image is saved in the
software's native format (layering in photoshop)
Aup - Answer Audacity
MVMM - Answer movie maker
CDR - Answer Corel Draw- vector
DWG - Answer Auto cad - vector
GIF - Answer Graphics Interchange Format (bitmapped
- attributes file format
- compression
- colour resolution
- dithering
- interlacing
- transparency
- cross platform
- 8 bit colour - good for clip art
- tiny file size, limited colour
-lossless
JPG - Answer joint photographic experts group
- compression
- distorts edges where there is sharp contrast
- stores full colour information - 24 bits
- larger file size, full colour scheme
- lossy
- compresses by forgetting
ARTIFACTS: (JPG) - Answer noise/specs around the image
,Lossless - Answer compression
- no data discarded during compression
- quality kept
- not blurry
- LZW compression but compressing to reduce file seizes by finding repeated patterns of pixels
Lossy - Answer Compression- data is discarded each time file is compressed - quality
degrades
- not the same as the original
achieved by Forgetting
♣ 0% compression = 100% quality, 95% compression = 5% quality
Tiff - Answer bitmap
- image editing
- 1 - 32 bits
- cross platform
- used when output is printed
EPS, EPSF - Answer Vector based
BMP - Answer Bitmapped format on WINDOWS
GIF - Answer bitmapped 256 colours 8 bit
Digitized - Answer Cameras and camcorders capture images and digitize them into computer
images
Megapixel - Answer how many millions of pixels you can capture in a photograph
Scanners - Answer Digitizes drawings, illustrations and 3D objects into computer images
using software
- measures in DPI (ppi)
SCANNER FORMULA - Answer (print size dimensions in inches) = Pixel dimensions/print
resolution
, ex. 3600 pixels/600ppi = 6 inches
Uptime - Answer How long does server stay up
Upload - Answer Transfer files to server so they can be displayed on the web
Advantages of a server - Answer Connected: on all the time and connected to internet
- always available
- taken care of
Panther - Answer name of computer server that hosts UWO website
FTP - Answer File transfer protocol
S-FTP - Answer Secure Shell
Shell client - Answer can type in commands by hand but in units
File Transfer Client - Answer allows us to transfer files to panther
Setting permissions - Answer ♣ Solution 1: change file "permissions" - Every time you
upload new file, go to Shell window and type in "publish
♣ Solution 2: change file "permissions" - using Secure File Transfer, everytime you upload new
file change permission rights on that file or folder (change properties)
File Permission - Answer 644
Folder Permission - Answer 755
Images used when printing: - Answer quality
file size
For the Web - Answer File size
quality (download speed) - objective is to download the website as quickly as possible