NPAR

We present techniques for rendering Hermite Radial Basis Function (HRBF) Implicits in different pen-and-ink styles. HRBF Implicits is a simple and compact representation, providing three fundamental qualities: a small number of point-normal samples as ...

This paper presents a system to automatically generate compact explosion diagrams. Inspired by handmade illustrations, our approach reduces the complexity of an explosion diagram by rendering an exploded view only for a subset of the assemblies of an ...

Recent years have witnessed significant advances in 3D brush modeling and simulation in digital paint tools. Compared with traditional 2D brushes, a 3D brush can be both more intuitive and more expressive by offering an experience closer to wielding a ...

The formulation of Diffusion Curves [Orzan et al. 2008] allows for the flexible creation of vector graphics images from a set of curves and colors: a diffusion process fills out the parts of the image that are away from curves. However, this model has ...

A texture transfer algorithm modifies the target image replacing the high frequency information with the example source image. Previous texture transfer techniques normally use such factors as color distance and standard deviation for selecting the best ...

We present an example-based approach to synthesizing stipple illustrations for static 2D images that produces scale-dependent results appropriate for an intended spatial output size and resolution. We show how treating stippling as a grayscale process ...

We propose an interactive sketch-based system for rendering oriental brush strokes on complex shapes. We introduce a contour-driven approach; the user inputs contours to represent complex shapes, the system estimates automatically the optimal trajectory ...

We present an interactive system that stylizes an input video into a painterly animation. The system consists of two phases. The first is an Video Parsing phase that extracts and labels semantic objects with different material properties (skin, hair, ...

Image manipulation takes many forms. A powerful approach involves image adjustment by example. To make color edits more intuitive, the intelligent transfer of a user-specified target image's color palette can achieve a multitude of creative effects, ...

Stylized line rendering for animation has traditionally traded-off between two undesirable artifacts: stroke texture sliding and stroke texture stretching. This paper proposes a new stroke texture representation, the self-similar line artmap (SLAM), ...

We present an interactive abstract painting system named Sisley. Sisley works upon the psychological principle [Berlyne 1971] that abstract arts are often characterized by their greater perceptual ambiguities than photographs, which tend to invoke ...

Recent works in image editing are opening up new possibilities to manipulate and enhance input images. Within this context, we leverage well-known characteristics of human perception along with a simple depth approximation algorithm to creatively ...

Many nonphotorealistic rendering techniques exist to produce artistic effects from given images. Inspired by various artistic work such as Warhol's, interesting artistic effects can be produced by using a minimal rendering, where the minimum refers to ...

We present a simple technique for creating fluid silhouettes described with vector graphics, which we call "Vector Fluid." In our system, a solid region in the fluid is represented as a closed contour and advected by fluid flow to form a curly and clear ...

Falling hardware costs have prompted an explosion in casual video capture by domestic users. Yet, this video is infrequently accessed post-capture and often lies dormant on users' PCs. We present a system to breathe life into home video repositories, ...

I argue that Non-Photorealistic Rendering (NPR) research will play a key role in the scientific understanding of visual art and illustration. NPR can contribute to scientific understanding of two kinds of problems: how do artists create imagery, and how ...

Non-photorealistic rendering (NPR) as a field of research is generally described by what it is not and as a result it is often hard to embrace the strengths of non-photorealistic rendering as a discipline beyond digitizing or replicating traditional ...

The field of non-photorealistic rendering is reaching a mature state. In its infancy, researchers explored the mimicry of methods and tools used by traditional artists to generate works of art, through techniques like watercolor or oil painting ...

Human perceptual processes organize visual input to make the structure of the world explicit. Successful techniques for automatic depiction, meanwhile, create images whose structure clearly matches the visual information to be conveyed. We discuss how ...