Computer Graphics: What, why and how?
Graphics Display Devices: Uses
rgb to cmy conversion method and the method of counting totall number of picxel ?
rgb to cmy conversion method and the method of counting totall number of picxel ?
In reply to ABDULLAH AL NUMAN
Re: colour model and picxel count
Conversion between RGB and CMY:
- Convert white from (1, 1, 1) in RGB to (0, 0, 0) in CMY.![$\left[ \begin{array} {c}C\ M\ Y\end{array} \right] = \left[ \begin{array} {c... ...\ 1\end{array} \right] - \left[ \begin{array} {c}R\ G\ B\end{array} \right] $](https://users.cs.cf.ac.uk/Dave.Marshall/Multimedia/img7.gif)
![$\left[ \begin{array} {c}R\ G\ B\end{array} \right] = \left[ \begin{array} {c... ...\ 1\end{array} \right] - \left[ \begin{array} {c}C\ M\ Y\end{array} \right] $](https://users.cs.cf.ac.uk/Dave.Marshall/Multimedia/img8.gif)
Sometimes an alternative CMYK model (K stands for Black) is used in colour printing (e.g., to produce darker black than simply mixing CMY).
RGB method of counting total number of pixel :
Computer Graphics is the use of Computers to display and manipulate information in graphical or pictorial form, either on a visual-display unit or via a printer or a plotter.
Now-a-days Computer Graphics is used in almost every sector. For example: Computer-aided design, Computer simulation, Design, Digital art, Education, Graphic design, Information visualization, Scientific visualization, Special Effects for cinema, Video Games, Virtual reality, Web design etc.
A display device is a device for the presentation of information, such as images or text (visual form). Display systems are mostly called a video monitor or Video display unit (VDU).
Display devices are designed to model, view, or display information. The purpose of display technology is to simplify information sharing.
Some display devices are:
- Cathode-Ray Tube(CRT)
- Liquid crystal display(LCD)
- Plasma Display
Computer Graphics is the use of Computers
>to display and manipulate information in graphical or
> pictorial form,
>either on a visual-display unit or
>via a printer or a plotter.
The importance of computer graphics lies in its applications. In engineering applications, the ability to quickly visualize newly designed shapes is indispensible. Before the advent of computer graphics, designers built expensive prototypes and time-consuming clay models. Now, designers can interactively view and modify models of their shapes using a computer.
Medical imaging is another application where computer graphics has proven valuable.
Computer graphics has also expanded the boundaries of art and entertainment.
Computer Graphics deals with creation, manipulation and storage of different type of images and objects.
Some of the applications of computer graphics are:
1.Computer Art
2.Computer Aided Drawing
3.Presentation Graphics
4.Entertainment
5.Education
6.Training
7.Visualisation
8.Image Processing
9.Machine Learning
10.GUI
A display device is an output device for presentation of information in visual or tactile form.
Some types of display devices are given below:
Cathode ray tube display (CRT)
Light-emitting diode display (LED)
Electroluminescent display (ELD)
Plasma display panel (PDP)
Liquid crystal display (LCD) ...
Organic light-emitting diode display (OLED)
Digital Light Processing display (DLP)
Your given graphics display devices lists are really helpful.
Nice Explanation..
In reply to Md. Ismail Jabiullah
Re: Computer Grapgics & Display Devices
Computer Graphics: is the use of computers to display and manipulate information in graphical or pictorial form, either on a visual display unit or via a printer or a plotter.
The necessity of Computer Graphics: Using computer graphics, we can likewise control the animation speed, visualization can be either 2-D or 3-D, part of the view, the geometric relationship the object, the measure of detail shown, and on.
It gives tools to creating motion pictures, music videos, and television shows, solid genuine objects as well as of theoretical, engineered objects, for example, a numerical surface in 4D and of information that have no inalienable geometry, for example, survey results.
How CG is in practice?:
The artist uses a combination of
--->3D Modeling Packages,
-->Texture Mapping,
-->Drawing Programs and
-->CAD Software
Uses Of Graphics Display Devices:
====Some Display Devices====
1.Raster Scan Displays,
2. Random-Scan Displays,
3.Refresh Cathode-Ray Tube
##Flat-Panel Displays:
1 Plasma Panel
2 Thin-Film Electroluminescent Display,
3 LED (Light Emitting Diode),
4 LCD (Liquid Crystal Display).
Such kind of devices are used in day to day life and especially LCD and LED devices getting more popularity due to their comparative facilities...
In reply to Mazharul Islam Bhuiyan(171-15-1425)
Re: Computer Grapgics & Display Devices
Great explanation Mazharul.
In reply to Md. Zahidul Islam Sumon (171-15-1225)
Re: Computer Grapgics & Display Devices
Thanks, Zahidul for your appreciation.
About Computer Graphics:
Computer graphics is an art of drawing pictures, lines, charts, etc using computers with the help of programming.
Basically there are two types of computer graphics namely below:
1. Interactive Computer Graphics
2. Non Interactive Computer Graphics
Graphics Display devices are below:
1. Cathode-Ray Tube(CRT)
2. Color CRT Monitor.
3. Liquid crystal display(LCD)
4. Light Emitting Diode(LED)
5. Plasma Display
6. Plasma Display
7. Direct View Storage Tubes(DVST)
8. 3D Display
What is computer graphics?
Answer: Computer graphics is an art of drawing pictures on computer screens with the help of programming. It involves computations, creation, and manipulation of data.
Why computer graphics used?
Answer: Suppose a shoe manufacturing company want to show the sale of shoes for five years. For this vast amount of information is to store. So a lot of time and memory will be needed. This method will be tough to understand by a common man. In this situation graphics is a better alternative. Graphics tools are charts and graphs. Using graphs, data can be represented in pictorial form. A picture can be understood easily just with a single look.
Interactive computer graphics work using the concept of two-way communication between computer users. The computer will receive signals from the input device, and the picture is modified accordingly. Picture will be changed quickly when we apply command.
How computer graphics used?
Answer:
i. Art − Computers provide a new medium for artists.
ii. Business presentation graphics − "A picture is worth a thousand words".
iii. Cartography − Drawing maps.
- Weather Maps − Real-time mapping, symbolic representations.
- Satellite Imaging − Geodesic images.
- Photo Enhancement − Sharpening blurred photos.
- Medical imaging − MRIs, CAT scans, etc. - Non-invasive internal examination.
- Engineering drawings − mechanical, electrical, civil, etc. - Replacing the blueprints of the past.
- Typography − The use of character images in publishing - replacing the hard type of the past.
- Architecture − Construction plans, exterior sketches - replacing the blueprints and hand drawings of the past.
- Training − Flight simulators, computer aided instruction, etc.
- Entertainment − Movies and games.
- Simulation and modeling − Replacing physical modeling and enactments.
Uses of Graphics Display Devices?
Answer:
a) Random Scan and Raster Scan
b) Plasma Display
c) Refresh Cathode Ray Tube
d) Color CRT Monitors
e) Direct View Storage Tubes
f) Flat Panel Display
g) 3D Display
h) Liquid Crystal Display(LCD)
i) Light Emitting Diode(LED)
j) Lookup Table
In reply to Muhammad Shahnewaz (171-15-1367)
Re: Display Devices
Such a raw explanation & fresh presentation
In reply to Md. Zahidul Islam Sumon (171-15-1225)
Re: Display Devices
Thank you so much for appreciate me
Computer Graphics: What, why and how?
- Computer graphics: Computer graphics is branch of computer science[1][2] that deals with generating images with the aid of computers.
- Why: Before the advent of computer graphics, designers built expensive prototypes and time-consuming clay models. Now, designers can interactively view and modify models of their shapes using a computer.
- How:
- Engineering drawings.
- Architecture.
- Medical imaging.
- Satellite Imaging .
- Business presentation graphics.
- Simulation and modeling.
- Entertainment.
Graphics Display Devices: Uses
- Computer monitor.
- TV.
- Mobile.
- 3D Display.
- Other visual display etc.
In reply to Md. Ismail Jabiullah
Re: Computer Graphics and Display Devices and Uses
What is CG(computer graphics): Computer is branch of computer science that deals with generating images with the aid of computers.
Why and How:COmputer graphics is the use of computers to display and manipulate information in graphical or pictorial form either on a visual display unit or plotter.since computer and it's components are used to create the graphis this is called computer graphics
Graphics Display Devices & Uses: In the field of CG there are various types of display devices but they can be classified into 2 main groups they are following :
1)CRT(Cathode Ray Tube): CRT are of 3 types based on refresh rate for image production 1) Raster scan 2) Random scan 3)Direct view storage tubes
2)Flat-panel Displays: These types of displays are slick and flat in dimension according to their light emission principles they are classified into 2 types
1)Emissive Display: This type is classified into 3 subgroups they are the following:
1)LED (Light Emitting Diode)
2)Plasma
3)Thin-Film Electroluminescent
2)Non-Emissive Display: LCD(Liquid Crystal Display) is the only candidate in this category.
basically , these are the main display types , they are used according to their advantages and disadvantages for a specific application.Like:
*)CRT displays are the earliest of them basically they are used where low refresh rate is used they can run at any resolution and look great they don't create a very sharp image so,they are not used nowadays
*)LED displays are one of the most used displays nowadays since it has a low power consumption and a long life span this is suited for the applications that need these qualities .but it is relatively expensive and Contrast ratios not consistent.
*)LCD is the most used and popular display panel since it is cheaper than others and has a good contrast ratio and low power consumption it is used almost everywhere from Pc monitors to digital watches but it has low viewing angle and needs a LED or some other type of light source to work
*)Plasma is so expensive and has very high power consumption and emits high-intensity IR rays and due to altitude change and atp quality varies so they are only suited for home TV screens. but they has very good color and contrast
*)Thin-Film Electroluminescent are only used in small devices
Display Devices
Computer Graphics: What, why and how?
Graphics Display Devices: Uses
colour model and picxel count
rgb to cmy conversion method and the method of counting totall number of picxel ?
colour model and picxel count
rgb to cmy conversion method and the method of counting totall number of picxel ?
Computer Graphics is the use of Computers to display and manipulate information in graphical or pictorial form, either on a visual-display unit or via a printer or a plotter.
Now-a-days Computer Graphics is used in almost every sector. For example: Computer-aided design, Computer simulation, Design, Digital art, Education, Graphic design, Information visualization, Scientific visualization, Special Effects for cinema, Video Games, Virtual reality, Web design etc.
A display device is a device for the presentation of information, such as images or text (visual form). Display systems are mostly called a video monitor or Video display unit (VDU).
Display devices are designed to model, view, or display information. The purpose of display technology is to simplify information sharing.
Some display devices are:
- Cathode-Ray Tube(CRT)
- Liquid crystal display(LCD)
- Plasma Display
Computer Graphics is the use of Computers
>to display and manipulate information in graphical or
> pictorial form,
>either on a visual-display unit or
>via a printer or a plotter.
The importance of computer graphics lies in its applications. In engineering applications, the ability to quickly visualize newly designed shapes is indispensible. Before the advent of computer graphics, designers built expensive prototypes and time-consuming clay models. Now, designers can interactively view and modify models of their shapes using a computer.
Medical imaging is another application where computer graphics has proven valuable.
Computer graphics has also expanded the boundaries of art and entertainment.
Computer Graphics deals with creation, manipulation and storage of different type of images and objects.
Some of the applications of computer graphics are:
1.Computer Art
2.Computer Aided Drawing
3.Presentation Graphics
4.Entertainment
5.Education
6.Training
7.Visualisation
8.Image Processing
9.Machine Learning
10.GUI
A display device is an output device for presentation of information in visual or tactile form.
Some types of display devices are given below:
Cathode ray tube display (CRT)
Light-emitting diode display (LED)
Electroluminescent display (ELD)
Plasma display panel (PDP)
Liquid crystal display (LCD) ...
Organic light-emitting diode display (OLED)
Digital Light Processing display (DLP)
Re: Computer Grapgics & Display Devices
Computer Graphics: is the use of computers to display and manipulate information in graphical or pictorial form, either on a visual display unit or via a printer or a plotter.
The necessity of Computer Graphics: Using computer graphics, we can likewise control the animation speed, visualization can be either 2-D or 3-D, part of the view, the geometric relationship the object, the measure of detail shown, and on.
It gives tools to creating motion pictures, music videos, and television shows, solid genuine objects as well as of theoretical, engineered objects, for example, a numerical surface in 4D and of information that have no inalienable geometry, for example, survey results.
How CG is in practice?:
The artist uses a combination of
--->3D Modeling Packages,
-->Texture Mapping,
-->Drawing Programs and
-->CAD Software
Uses Of Graphics Display Devices:
====Some Display Devices====
1.Raster Scan Displays,
2. Random-Scan Displays,
3.Refresh Cathode-Ray Tube
##Flat-Panel Displays:
1 Plasma Panel
2 Thin-Film Electroluminescent Display,
3 LED (Light Emitting Diode),
4 LCD (Liquid Crystal Display).
Such kind of devices are used in day to day life and especially LCD and LED devices getting more popularity due to their comparative facilities..
Computer Graphics: It is the use of computers to create and manipulate pictures on a display device. It comprises of software techniques to create, store, modify, represents pictures. It deals with generating images with the aid of computers. Today, computer graphics is a core technology in digital photography, film, video games, cell phone and computer displays, and many specialized applications.
Why Computer Graphics : The importance of computer graphics lies in its applications. In engineering applications, the ability to quickly visualize newly designed shapes is indispensable. Before the advent of computer graphics, designers built expensive prototypes and time-consuming clay models. Now, designers can interactively view and modify models of their shapes using a computer.
Applications of Computer Graphics:
CAD
Presentation Graphics
Computer Art
Entertainment
Education and Training
Visualization
Image Processing
GUI – Graphical User Interface
Some Display Devices are (Uses):
Cathode ray tube display (CRT)
Light-emitting diode display (LED)
Electroluminescent display (ELD)
Plasma display panel (PDP)
Liquid crystal display (LCD)
Organic light-emitting diode display (OLED)
Digital Light Processing display (DLP)
Computer Graphics: is the use of computers to display and manipulate information in graphical or pictorial form, either on a visual display unit or via a printer or a plotter.
The necessity of Computer Graphics: Using computer graphics, we can likewise control the animation speed, visualization can be either 2-D or 3-D, part of the view, the geometric relationship the object, the measure of detail shown, and on.
It gives tools to creating motion pictures, music videos, and television shows, solid genuine objects as well as of theoretical, engineered objects, for example, a numerical surface in 4D and of information that have no inalienable geometry, for example, survey results.
How CG is in practice?:
The artist uses a combination of
--->3D Modeling Packages,
-->Texture Mapping,
-->Drawing Programs and
-->CAD Software
Uses Of Graphics Display Devices:
====Some Display Devices====
1.Raster Scan Displays,
2. Random-Scan Displays,
3.Refresh Cathode-Ray Tube
##Flat-Panel Displays:
1 Plasma Panel
2 Thin-Film Electroluminescent Display,
3 LED (Light Emitting Diode),
4 LCD (Liquid Crystal Display).
Such kind of devices are used in day to day life and especially LCD and LED devices getting more popularity due to their comparative facilities...
Computer Graphics: What, why and how?
Computer graphics: Computer graphics is branch of computer science[1][2] that deals with generating images with the aid of computers.
Why: Before the advent of computer graphics, designers built expensive prototypes and time-consuming clay models. Now, designers can interactively view and modify models of their shapes using a computer.
Medical imaging is another application where computer graphics has proven valuable. Recent advances in imaging technology such as computer tomography and magnetic resonance imaging allow physicians to take 3D Xrays of the human body.
How:
Engineering drawings.
Architecture.
Medical imaging.
Satellite Imaging .
Business presentation graphics.
Simulation and modeling.
Entertainment.
Graphics Display Devices: Uses
Computer monitor.
TV.
Mobile.
3D Display.
Other visual display etc.
A display device is an output device for presentation of information in visual or tactile form.
Some types of display devices are given below:
Cathode ray tube display (CRT)
Light-emitting diode display (LED)
Electroluminescent display (ELD)
Plasma display panel (PDP)
Liquid crystal display (LCD) ...
Organic light-emitting diode display (OLED)
Digital Light Processing display (DLP)