\input zb-basic
\input zb-ioport
\iteman{io-port 05811222}
\itemau{Zhan, Yi; Wang, Minghui; Wan, Qun; Li, Meng}
\itemti{A modified algorithm with bidirectional diffusion for TV image interpolation.}
\itemso{J. Softw. 20, No. 6, 1694-1702 (2009).}
\itemab
Summary: A method of image interpolation based on bidirectional diffusion is proposed. With this method, the edge width of interpolated images is effectively reduced, crisp and smooth edges are obtained. In this bidirectional diffusion, forward diffusion occurs in brighter lateral on edge ramp and backward diffusion proceeds in darker lateral. The intensity of diffusion is adjusted adaptively according to the image features, which avoid the appearance of artefacts and false textures in the interpolated image. Numerical experiments on real images show that images interpolated with the proposed method have smaller edge width and are almost artefact-free.
\itemrv{~}
\itemcc{}
\itemut{image interpolation; bidirectional diffusion; edge sharpening; partial differential equations}
\itemli{doi:10.3724/SP.J.1001.2009.03532}
\end