Boundary-fill algorithm or flood-fill algorithm , Computer Graphics

Assignment Help:

boundary-fill algorithm or flood-fill algorithm

As you saw the implementation of scan line polygon fill requires that boundaries should be straight line segments.  The seed fill algorithms do not require any such constraints.  You only need to know an interior point of the closed boundary object to fill it.  This interior point is called a seed point.

However, determination of interior point for complex polygons such as the one shown in figure itself is a challenging task.The following methods are used to determine an interior point of the area to be filled. 

1.  Odd-even rule,

2.  Nonzero winding number rule.

Once an interior point of the object is determined, the boundary-fill algorithm or, flood-fill algorithm may be applied to fill the given area.


Related Discussions:- Boundary-fill algorithm or flood-fill algorithm

Bresenham rasterisation algorithm, 2. Describe how the Bresenham rasterisat...

2. Describe how the Bresenham rasterisation algorithm is advantageous when compared to any other existing method.

Variation of intensity - modeling and rendering, Variation of Intensity - M...

Variation of Intensity - Modeling and Rendering According to the phong model the variation of Intensity (I) along with α (since I α cos n α) is: i) for shiny surface (

Reflection, What is the advantages and disadvantages of reflection ?

What is the advantages and disadvantages of reflection ?

What is the difference between kerning and tracking, QUESTION (a) What ...

QUESTION (a) What is the difference between kerning and tracking? (b) What is the advantage of creating colours in the Swatches panel instead of the Colour panel? (c) Wha

Passive computer animations - types of computer animation, Passive Computer...

Passive Computer Animations: That has no option for users to utilize computer graphics today is mostly interactive for example: movies. Frame animation is non-interactive anim

Important points about types of light resources, Important points about Ty...

Important points about Types of light resources - illumination model Note: While we see an opaque non-luminous object, we notice reflected light by one surface of the object

Crt, explain the working procedure of crt digram

explain the working procedure of crt digram

Briefly explain the 12 stages in image processing, QUESTION (a) In Autom...

QUESTION (a) In Automatic Contrast Adjustment briefly explain how to stretch an image to its full intensity (b) Write down a mathematical function of a Modified Automatic Con

Hardware for computer animation, Hardware For Computer Animation It co...

Hardware For Computer Animation It comes in many shapes, sizes and abilities. Much hardware is specialized to do only specific tasks. Other types of hardware do a variety of t

Frame animation non- interactive animation rectangular shape, Frame animati...

Frame animation non- interactive animation rectangular shape (Cartoon movies) It is an "internal" animation method, which is, it is animation within a rectangular frame. This i

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