Multi-exemplar inhomogeneous texture synthesis

This paper presents a new framework for the semi-automatic synthesis of an inhomogeneous texture from a theoretically infinite number of input exemplars. Our algorithm generates a result with natural multiway transitions, maintaining a reasonable synthesis time to keep interactivity. We introduce intermediate textures between multiple exemplars, called ‘transition textures’ which enable our algorithm to produce smooth transitions between input exemplar patches. We also propose ‘image index correction’ to achieve a synthesis speed that is independent of the number of input exemplars by smart placement of transition-texture samples. Our algorithm is semiautomatic, spatially deterministic and well suited to acceleration via parallel processors. Also, our algorithm can easily control the synthesis result to design a texture visual with user interactions.

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► We present a new framework for synthesizing an inhomogeneous texture from multiple input exemplars.
► ‘Transition textures’ are a collection of intermediate textures, each represents a transition between input exemplars.
► Limiting search space to include only directly related to a input pair significantly reduces preprocess time, also enables incremental preprocess.
► The border of conflicting patches can be detected and fixed by fast transition texture injection, which named as ‘Image index correction’.
► The framework is flexible enough to employ other texture mixture algorithms, and can easily control the final result.