IEEE Trans Image Process - Weighted color and texture sample selection for image matting.

Tópicos

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Resumo

Color sampling based matting methods find the best known samples for foreground and background colors of unknown pixels. Such methods do not perform well if there is an overlap in the color distribution of foreground and background regions because color cannot distinguish between these regions and hence, the selected samples cannot reliably estimate the matte. Furthermore, current sampling based matting methods choose samples that are located around the boundaries of foreground and background regions. In this paper, we overcome these two problems. First, we propose texture as a feature that can complement color to improve matting by discriminating between known regions with similar colors. The contribution of texture and color is automatically estimated by analyzing the content of the image. Second, we combine local sampling with a global sampling scheme that prevents true foreground or background samples to be missed during the sample collection stage. An objective function containing color and texture components is optimized to choose the best foreground and background pair among a set of candidate pairs. Experiments are carried out on a benchmark data set and an independent evaluation of the results shows that the proposed method is ranked first among all other image matting methods.

Resumo Limpo

color sampl base mat method find best known sampl foreground background color unknown pixel method perform well overlap color distribut foreground background region color distinguish region henc select sampl reliabl estim matt furthermor current sampl base mat method choos sampl locat around boundari foreground background region paper overcom two problem first propos textur featur can complement color improv mat discrimin known region similar color contribut textur color automat estim analyz content imag second combin local sampl global sampl scheme prevent true foreground background sampl miss sampl collect stage object function contain color textur compon optim choos best foreground background pair among set candid pair experi carri benchmark data set independ evalu result show propos method rank first among imag mat method

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