A vectorization framework for constant and linear gradient filled regions

Verfasser / Beitragende:
[Ruchin Kansal, Subodh Kumar]
Ort, Verlag, Jahr:
2015
Enthalten in:
The Visual Computer, 31/5(2015-05-01), 717-732
Format:
Artikel (online)
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024 7 0 |a 10.1007/s00371-014-0997-3  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00371-014-0997-3 
245 0 2 |a A vectorization framework for constant and linear gradient filled regions  |h [Elektronische Daten]  |c [Ruchin Kansal, Subodh Kumar] 
520 3 |a Linear gradients are commonly applied in non-photographic artwork for shading and other artistic effects. It is sometimes necessary to generate a vector graphics form of raster images comprising such artwork with the expectation to obtain a simple output and plug it into a traditional workflow, to be further edited and arranged. Many such workflows support only linear gradients and our goal is to generate a standard vector form of the image that can fit such workflow. This vectorization process should be automatic with minimal user intervention. We present a simple image vectorization algorithm that detects regions of linear gradient in potentially noisy images and reconstructs the vector definition on the basis of that information. It uses a novel interval gradient optimization scheme to derive large regions of uniform gradient. We also demonstrate the technique on noisy and hand-drawn portraits. 
540 |a Springer-Verlag Berlin Heidelberg, 2014 
690 7 |a Image vectorization  |2 nationallicence 
690 7 |a Gradient reconstruction  |2 nationallicence 
690 7 |a Region detection  |2 nationallicence 
700 1 |a Kansal  |D Ruchin  |u IIT, Delhi, Delhi, India  |4 aut 
700 1 |a Kumar  |D Subodh  |u IIT, Delhi, Delhi, India  |4 aut 
773 0 |t The Visual Computer  |d Springer Berlin Heidelberg  |g 31/5(2015-05-01), 717-732  |x 0178-2789  |q 31:5<717  |1 2015  |2 31  |o 371 
856 4 0 |u https://doi.org/10.1007/s00371-014-0997-3  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s00371-014-0997-3  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Kansal  |D Ruchin  |u IIT, Delhi, Delhi, India  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Kumar  |D Subodh  |u IIT, Delhi, Delhi, India  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t The Visual Computer  |d Springer Berlin Heidelberg  |g 31/5(2015-05-01), 717-732  |x 0178-2789  |q 31:5<717  |1 2015  |2 31  |o 371