study_multiMedia
=================== lecutre one ===================
q1: what is multimedia?
is representation of information in interactive and attractive manner with
combination of text and image and videos and gif...
q2: what is the tradional mess media?
is includes all the media before the internet like newspaper, magazings,
tv, radio, etc
q3: what is the multimedia classification?
- linear
- non-linear
- interactive text
- hypermedia
- hypertext
q4: what is linear media?
is multimedia system or project that the user don't have any control or interactive
on the media like: movie, lecture/demo show
q5: what is non-linear media?
is multimedia system or project that the user do have any control or interactive
on the media like: games, courseware
q6: what is the interactive multimedia?
interactive multimedia is a system that allow the user to control and combine
any types of multimedia like text, images, video and else example:
computer graphics system, facebook, instagram, twitter
q7: what is hypertext media?
hypertext is following links that point to another parts of the doucments
like in html
q8: what is hypermedia?
is extension of term hypertext but that include a graphics like images, vidoes
, texts and hyperlinks example: access web content(the world wide web)
q9: what is the component of multimedia?
text , audio, videos, animation, graphics
q10: what is the type of image/graphics?
there is two types of graphics bitmap image, vector graphics:
- bitmap: is a image that capture by the cameras or scanners are not editable and require
large amount of memory - vector graphics: is an image that create by the software graphics system and it's
editable and don't reqiure small amount of memory
q11: what is the type of audio?
there is two types of audio digital and analog:
- digital: is what the computer how ot store the sound
- analog: is refer two the original sound
q12: what is animation?
is just continuous series of images that are display suquence a commen software:
adobe flash.
q13: what is the application of multimedia?
business, education, entertaiment, home, public places.
=================== lecutre two ===================
q1: what is multimedia computer system?
a multimedia system is a system that capable of processing multimedia data
q2: what is the components of multimedia computer system?
capture devices, storage devices, communcation devices, display devcies, computer system
q3: what is the system requirments for multimedia?
- high processer power
- bigger storage capacity
- protection
- communcation
- better compression techology
- data representation
- presentation
- understanding
- production
- distribution
q4: what is processing scheduling?
cpu scheduling is a process for determent which process will execute while the
another will hold
q5: what is indexing?
multimedia indexing is a processing in db that help for efficienty search for
content
q6: what is protection?
is media encryption and copyright and privice.
q7: what is data representation?
is the file format that must be easy to handle in real time.
q8: what is data presentation?
it's a real interface that help the user to show the multimedia and interacties
with it
q9: what is data distribution?
The distribution or delivery of digital media content such as audio, video, e-books, video
games, and other software to a dispersed audience over an online delivery medium, such as
the Internet.
q10: what is SMIL?
SMIL markup is written in extensible Markup Language (XML) and has similarities
to HTML.
q11: what is multimedia computer science components?
- graphics
- computer vision
- computer compression
- network
- database system
- human computer interface(HCI)
q12: what is an image?
an image is represention of two dimensional function of form f(x, y)
q13: explain the digitization process?
sampling: process of digitizing coordinte value is called sampling
quantization: digitizing the amplitude values is called quentization
q14: what is the color depth?
also known as bit depth , is the bits per pixels to indecate in colors in pixels
q14: what is the 1bit image?
also known as binary image, it's an image black and white image the simplest
type of images
q15: A 640×480 monochrome image requires !!!!! kybyte?
640 * 480 = 307200 bit // get the intensity of image (bit)
307200 / 8 = 38400 byte // convert from bit to byte
38400 / 1000 = 38.4 KB // convert from byte to KB
q16: what is gray image:
it's an image that representation from 0 to 255 each pixels
q15: A 640×480 grayscale image requires !!!! kybyte?
// the image intensity in byte becuase gray scale = 8-bit imgae
640 * 480 = 307200 byte // get the intensity of imgae (byte)
307200 / 1024 = 300 KB // convert byte to KB
q16: what is image resolution?
it's refer too the numbers of pixels in the image
q16: what is 24-bit image color?
it's an image that each pixels represented by three bytes(RGB)
q15: A 640×480 24-bit color image requires !!!! kybyte?
// in colorfull image or 24/32-bit image get intensity in byte and * 3 for each channel (RGB)
640 * 480 * 3 = 921600 byte
921600 / 1024 = 900 KB // convert the byte to KB
Tip
SMIL: Synchronized Multimedia Integration Language, pronounced "smile"
when x, y are continuous values call image analog
when x, y are discrete values call image digital(pixels)
binary image also called a 1-bit monochrome
=================== lecutre three, four ===================
q1: what is halftone, ditering?
it's a process for convert the grayscale image to binary image(black and white)
q2: what is the type of ditering?
there is three type of dithering:
- random dither
- ordered dithering
- error diffision dither
q3: what is brightness and hue and saturation?
brightness: the amount of intensity in the image, which appears to be reflecting
the light
hue: is represented of a dominant color family of speific color we are looking
for
saturation: refers the intensity of a color in image, when the intensity increase
more pure the color gone be and when it's decrease the color appeared
more washed-out
q4: what are colors model?
RGB: for color mointer for video games.
CMY: model for priting.
HSL: for used for image processing application.
q5: what is the color picker?
a mouse click will select the color indicated
Tip
INTENSITY: 1/3{R+G+B}
SATURATION: 1 - (3/{R+G+B}) * min(R,G,B)
HUE:
=================== lecutre five ===================