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  1. Proceedings of the 5th international symposium on Non-photorealistic animation and rendering (NPAR '07)
  2. Structure-preserving manipulation of photographs
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3D collage: expressive non-realistic modeling
Coherent line drawing
Illustrative rendering in Team Fortress 2
Structure-preserving manipulation of photographs
Modeling with rendering primitives: an interactive non-photorealistic canvas
Hybrid quantitative invisibility
Stylized shadows
Illustration of complex real-world objects using images with normals
Sketching, scaffolding, and inking: a visual history for interactive 3D modeling
Isophote distance: a shading approach to artistic stroke thickness
Using NPR to evaluate perceptual shape cues in dynamic environments
Automating joiners
Single camera flexible projection
Highlight lines for conveying shape
Engaging viewers through nonphotorealistic visualizations
Motion cues for illustration of skeletal motion capture data

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Structure-preserving manipulation of photographs

Content Provider ACM Digital Library
Author Orzan, Alexandrina Bousseau, Adrien Barla, Pascal Thollot, Joƫlle
Abstract Visual content is often better communicated by simplified or exaggerated images than by the "real world like" images. In this paper, we offer a tool for creating such enhanced representations of photographs in a way consistent with the original image content. To do so, we develop a method to identify the relevant image structures and their importance. Our approach (a) uses edges as the basic structural unit in the image, (b) proposes tools to manipulate this structure in a flexible way, and (c) employs gradient domain image processing techniques to reconstruct the final image from a "cropped" gradient information. This edge-based approach to non-photorealistic image processing is made feasible by two new techniques we introduce: an addition to the Gaussian scale space theory to compute a perceptually meaningful hierarchy of structures, and a contrast estimation method necessary for faithful gradient-based reconstructions. We finally present various applications that manipulate image structure in different ways.
Starting Page 103
Ending Page 110
Page Count 8
File Format PDF
ISBN 9781595936240
DOI 10.1145/1274871.1274888
Language English
Publisher Association for Computing Machinery (ACM)
Publisher Date 2007-08-04
Publisher Place New York
Access Restriction Subscribed
Subject Keyword Visual communication Image processing Multiscale analysis Image reconstruction
Content Type Text
Resource Type Article
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