What is the range of the pixels in a Grayscale images?
0 - 1
0 - 255
0 - 210
None of the above
Correct Answer :
B. 0 - 255
The pixel value of the grayscale image defines the brightness of the pixel. Here, the pixel value is stored as a byte value, i.e. an 8-bit value. Hence, the value of every pixel in a grayscale image ranges from 0 to 255.
Related Questions
With reference to Random Scan Display, which of the following options is correct?
It has an electron beam that directed only to the screen areas where any picture has to be displayed.
It has a good pixel amount.
It's ideal for line drawing.
All of the above mentioned.
Which of the following are true with respect to the Window Port in computer graphics?
It represents real world coordinate system.
A window port can be defined with the help of a GWINDOW statement.
Window port is the coordinate area specially selected for the display.
All of the above
Which part of the CRT contains cathode?
Focusing system
Electron Gun
Screen
Control Electrode
Consider the following statement:
The boundary is specified in a single color, and the algorithm proceeds pixel by pixel until the boundary color is encountered.
The above statement defines which of the following algorithms?
Scan-line fill algorithm
Boundary-fill algorithm
Entire fill algorithm
Slide curve algorithm
Amongst which one of the most basic transformation methods which may applied in three-dimensional planes -
Rotation
Translation
Scaling
All of the mentioned above
A display controller converts 0s and 1s to the ...
Display Devices
Video signal
Text wrapping
None of the above mentioned
___ is a rigid body transformation that enables an entity to shift without deforming.
Rotation
Translation
Only B
None of the above
Which display device allows a user to move around an object and can be shown it from different angles?
Flat Panel Display Devices
Direct View Storage Tubes
3D Devices
CRT
In ___ a beam of an electron is moved across the screen. It moves from top to bottom considering one row at a time.
Raster Scan Display
Random Scan Display
Both A and B
None of the above mentioned
Which part of CRT monitor is responsible for clear picture on the screen?
Phosphorus Screen
Deflection Yoke
Focusing System
Colored Lights of the screen
Which of the following are true with respect to the Bresenham's algorithm?
It produces smooth polygons
The results of this algorithm are 100 percent accurate.
Due to integer operations, it's complexity gets reduced
All of the above
Which devices provide the graphics framework with positional data?
Output devices
Storage devices
Input devices
Both B and C
In a graphical user interface, the most common input device is,
Mouse
Keyboard
Monitor
Joy stick
The translation of a specified picture description into a series of pixel-intensity values for storage in the frame buffer is known as digitization, it is also known as ...,
Scan conversion
Randomization
Rasterization
Encoding
A 900 rotation can be done using the raster scan technique for transformation ___
Using coping every row of a block into a column in a new frame buffer location
Using drawing a line
Using refresh a frame buffer
None of the above mentioned
The ___ between the strong regions equal to the duration of the dashed lines.
Very short dashes
Inter dash spacing
Both A and B
None of these
Fill in the blank:Each pixel has some intensity value which is represented in memory of the computer. This memory part is known as the ____________.
Frame Buffer
Random Access Memory (RAM)
Picture Memory
None of the above
Who among the following developed the CRT (Cathode Ray Tube)?
Charles Darwin
Ferdinand Barun
Thomas Alva Edison
None of the above
Which of the following does not represent a line pattern?
Dark line
Dotted line
Dashed line
None of the mentioned above
Which lights form the viewing colors that we see on the screen?
Red
Blue
Green
All of these
In which of the following parts of the cathode ray tube, is a huge amount of heat released to the cathode by directing a current through a coil of wire?
Electron gun
Phosphorus coated tube
Filament
Anode and cathode
CRT stands for,
Cathode Random Tunnel
Cathode Ray Tube
Cathode Random Tube
Cathode Ray Tunnel
What are Random scan and Raster scan techniques?
Techniques to display an image on the screen
Line Drawing Techniques
Polygon Drawing Techniques
None of the above
Which among the following is best suited for a realistic shaded image drawing on the screen?
Random Scan Display Algorithm
Raster Scan Display Algorithm
Both a. and b.
None of the above
The fundamental geometric transformations are as follows:
Scaling
Translation
Rotation
All of the Above
Which among the following are the types of scanning or travelling of beam in a raster scan display technique?
Interlaced Scanning
Non- Interlaced Scanning
Spiral Scanning
All of the Above
Which of the following line-generating algorithms is the most effective and efficient?
Midpoint algorithm
Bresenham's Line algorithm
DDA algorithm
None of the mentioned above
Which of the following is true with respect to the Bresenham's line drawing algorithm?
It overcomes the drawbacks of DDA line drawing algorithm
The DDA algorithm was proposed to overcome the limitations of Bresenham's line drawing algorithm
Both a. and b.
None of the above
PPI stands for,
Pixel per inch
Photos per instruction
Pixels per image
None of the above
What is the range of the pixels in a Grayscale images?
0 - 1
0 - 255
0 - 210
None of the above