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ICMCS
2009
IEEE

Fast directional image interpolation with difference projection

8 years 4 days ago
Fast directional image interpolation with difference projection
This paper presents a new directional image interpolator, aiming to increase image resolution with high perceptual quality and low computational complexity. In our method, missing pixels in a magnified image are generated through linear interpolation on certain fixed supports to facilitate fast implementation, while local directional features are imposed on the adaptive interpolation weights which are determined by the gradients diffused from the low resolution image. Afterwards, a novel difference projection strategy is proposed to enforce the continuity of the magnified image by reusing the directional interpolator. Experimental results show that our method outperforms conventional bicubic and some existing adaptive interpolators, in terms of both the perceptual and quantitative quality.
Zhiwei Xiong, Yonghua Zhang, Xiaoyan Sun, Feng Wu
Added 19 Feb 2011
Updated 19 Feb 2011
Type Journal
Year 2009
Where ICMCS
Authors Zhiwei Xiong, Yonghua Zhang, Xiaoyan Sun, Feng Wu
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