自适应滤波的边缘引导图像降尺度

Dubok Park
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引用次数: 5

摘要

本文提出了一种基于边缘引导插值和自适应滤波的图像降尺度框架。首先,从输入图像中提取二阶导数边缘制导映射。然后,通过边缘制导图和距离输入像素的部分距离插值像素间。最后,对扩展后的像素进行自适应滤波,在保留输入图像细节和内容的同时减少伪影。实验结果验证了该框架在减少伪影的同时能够达到内容保留的效果。
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Edge-Guided Image Downscaling With Adaptive Filtering
In this paper, we propose a novel framework for image downscaling with edge-guided interpolation and adaptive filtering. First, we extract the second derivative edge-guidance map from an input image. Then, inter-pixels are interpolated via edge-guidance map and portion of distance from the input pixels. Finally, adaptive filtering is applied to the expanded pixels for alleviating artifacts while preserving details and contents of input image. Experimental results validate the proposed framework can achieve content-preserving results while reducing artifacts.
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