Abstract
We address the problem of representing captured
images in the continuous mathematical space more
usually associated with certain forms of drawn
(‘vector’) images. Such an image is resolutionindependent
so can be used as a master for varying
resolution-specific formats. We briefly describe the
main features of a vectorising codec for photographic
images, whose significance is that drawing programs
can access images and image components as first-class
vector objects. This paper focuses on the problem of
rendering from the isochromic contour form of a
vectorised image and demonstrates a new fill algorithm
which could also be used in drawing generally. The fill
method is described in terms of level set diffusion
equations for clarity. Finally we show that image
warping is both simplified and enhanced in the vector
form and that we can demonstrate real histogram
equalisation with genuinely rectangular histograms
straightforwardly.
images in the continuous mathematical space more
usually associated with certain forms of drawn
(‘vector’) images. Such an image is resolutionindependent
so can be used as a master for varying
resolution-specific formats. We briefly describe the
main features of a vectorising codec for photographic
images, whose significance is that drawing programs
can access images and image components as first-class
vector objects. This paper focuses on the problem of
rendering from the isochromic contour form of a
vectorised image and demonstrates a new fill algorithm
which could also be used in drawing generally. The fill
method is described in terms of level set diffusion
equations for clarity. Finally we show that image
warping is both simplified and enhanced in the vector
form and that we can demonstrate real histogram
equalisation with genuinely rectangular histograms
straightforwardly.
| Original language | English |
|---|---|
| Pages | 1-18 |
| Number of pages | 18 |
| Publication status | Published - Nov 2009 |
| Event | 6th European Conference for Visual Media Production, CVMP 2009, November 12, 2009 - November 13, 2009 - London, UK United Kingdom Duration: 15 Mar 2010 → … |
Conference
| Conference | 6th European Conference for Visual Media Production, CVMP 2009, November 12, 2009 - November 13, 2009 |
|---|---|
| Country/Territory | UK United Kingdom |
| City | London |
| Period | 15/03/10 → … |
Bibliographical note
Revised and updated version appears in The Journal of Virtual Reality and Broadcasting, 9 (3)Keywords
- Model-based coding, Rendering, Level Sets.