Essential elements for the raster scan display, Computer Graphics

Assignment Help:

Essential Elements for the Raster Scan Display

Three elements are essential for the raster scan display. They are as:

1) The Frame Buffer that is also termed as the Refresh Buffer or Bitmap. This is the refresh storage region in the digital memory, wherein the matrix or array of intensity values and other parameters termed as attributes of all the pixels making up the image are stored in binary form.

2) The display device that converts the electrical signals in observable images, i.e. the VDU.

3) The Display Controller, the interface that sends the contents of the frame buffer to the VDU in a form compatible along with the display device, a specific number of i.e. 30 or more times a second. The display controller adjusts also and creates allowances for the dissimilarities in the operating speeds of the different devices involved and may also produce line segments and text characters.

Creating points, lines, characters and also filling in areas along with colours or shades are all accomplished through this scan technique, termed as the Frame Buffer Display. A usual method for storing characters is to store the pixel data for the entire matrix as 5*7 to 9*14, horizontal to vertical allocated to present a character.


Related Discussions:- Essential elements for the raster scan display

Photoshop, What is the best selection method in photoshop

What is the best selection method in photoshop

What do you mean by parabolic splines, What do you mean by parabolic spline...

What do you mean by parabolic splines?  For parabolic splines a parabola is fitted by the first three points p1, p2,p3 of the data array of kot points. Then a second parabolic

Character generation, Which is the most usable and frequent method to gener...

Which is the most usable and frequent method to generate a character?

Area subdivision method-obscures the continuing two surface, Assume here ar...

Assume here are three polygon surfaces P,Q, R along with vertices specified by as: P: P1(1,1,1), P2(4,5,2), P3(5,2,5) And as Q: Q1(2,2,0.5), Q2(3,3,1.75), Q3(6,1,0.5) R: R1(0.5,

Difference of gaussians, Difference of Gaussians In this project we wi...

Difference of Gaussians In this project we will implement the difference of Gaussians (DoG) edge detector and learn its characteristics. Part A: Design and implement a proc

Graphic primitives, Graphic Primitives In previous section, we have di...

Graphic Primitives In previous section, we have discussed refreshing display devices and its categories which are Raster and Random Scan display devices. We have also discusse

Parallel projection, Parallel Projection In parallel projection, object...

Parallel Projection In parallel projection, objects in scene are projected onto the 2D view plane along rays parallel to a projection vector. Parallel projection is orthogra

Characteristics of bitmap data, Characteristics of Bitmap Data: Bitmap dat...

Characteristics of Bitmap Data: Bitmap data can take up many rooms. A CMYK A-4 size picture which is optimized for medium quality printing (150 lpi) takes up 40 Mage Bytes. Compre

Demerit - phong shading or normal vector interpolation shadi, Demerit - pho...

Demerit - phong shading or normal vector interpolation shading Needs lot of computations to determine intensity at a point, hence increases the cost of shading in any impleme

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd