 # What Are Four Major Adverse Effects Of Scan Conversion?

## Which of these is not a distortion produced by the scan conversion are?

Which of these is not a distortion produced by the scan conversion are: Jaggies..

## What does a scan converter do?

A scan converter is a device that converts a computer-video signal into a signal that is compatible with a television. Sometimes a scan converter is referred to as a “PC to TV” converter or a “PC to video” converter because it allows you to view computer-video on a TV set.

## What is raster scan display?

Raster Scan Displays are most common type of graphics monitor which employs CRT. … In raster scan system electron beam sweeps across the screen, from top to bottom covering one row at a time. A pattern of illuminated pattern of spots is created by turning beam intensity on and off as it moves across each row.

## What is CG in computer?

Computer graphics is the branch of computer science that deals with generating images with the aid of computers. … It is often abbreviated as CG, or typically in the context of film as computer generated imagery (CGI).

## Why do we need scan conversion?

Advantage of developing algorithms for scan conversion Algorithms can generate graphics objects at a faster rate. Using algorithms memory can be used efficiently. Algorithms can develop a higher level of graphical objects.

## Which is the best line algorithm to balance the processing load among the processors?

9. Which is the best line algorithm to balance the processing load among the processers? Explanation: If there are ‘n’ processes then this algorithm divides it into number of partitions and generates line segments. Explanation: In Parallel line algorithm each processors calculates pixel positions.

## Which one is not a type of basic fill style?

Which one is not a type of basic fill styles? Explanation: Dark fill is not a type of basic fill style, rest of them is the basic fill styles. Explanation: Rectangular fill pattern is called tiling or tiling pattern.

## Why do we use midpoint in circle algorithm?

The mid-point circle drawing algorithm is an algorithm used to determine the points needed for rasterizing a circle. We use the mid-point algorithm to calculate all the perimeter points of the circle in the first octant and then print them along with their mirror points in the other octants.

## Which of the following statements best define scan conversion?

Question 4: Which of the following statements best define Scan conversion?The process of digitizing a known picture definition into a set of pixel-intensity for storage in the frame buffer.Encoding the pixels into bits.Converting the draw able image into a graphical image.None of the above.

## What do you mean by scan conversion?

The process of representing continuous graphics objects as a collection of discrete pixels is called scan conversion. Scan conversion or scan converting rate is a video processing technique for changing the vertical / horizontal scan frequency of video signal for different purposes and applications.

## What is the basis of scan conversion of a circle?

In the process of “scan –converting a circle”, the circle is divided into eight equal parts, one part is called as octant, and if one part is generated, then it is easy to replicate the other seven parts; so computing one octant is enough to determine the complete circle.

## What are the major side effects of scan conversion?

Side effects due to scan conversion, Computer GraphicsStaircase A common example of aliasing effects is the staircase of jagged appearance, we see when scan converting a primitive such as a line of a circle. … Unequal Brightness Another side effect that is less noticeable is the unequal brightness of lines of different orientation.More items…

## What will happen if PK 0?

i.e., Pk<0, means that midpoint is inside the circle boundary, so the circle boundary is close to the upper pixel, thus choose the upper pixel (xk+1, yk) for plotting, otherwise if Pk>0, the midpoint is outside the circle boundary, so the circle boundary is close to the lower pixel, thus choose the lower pixel (xk+1, …

## Why do we use Z buffer?

Z-buffering, also known as depth buffering, is a technique in computer graphics programming. It is used to determine whether an object (or part of an object) is visible in a scene. It can be implemented either in hardware or software, and is used to increase rendering efficiency.

## What is the problem of aliasing?

The aliasing effect is the appearance of jagged edges or “jaggies” in a rasterized image (an image rendered using pixels). The problem of jagged edges technically occurs due to distortion of the image when scan conversion is done with sampling at a low frequency, which is also known as Undersampling.