Image interpolation with directionlets

Vladan Velisavljevic, Raphael Coquoz
2008 Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing  
We present a novel directionally adaptive image interpolation based on a multiple-direction wavelet transform, called directionlets. The algorithm uses directionlets to efficiently capture directional features and to extract edge information along different directions from the low-resolution image. Then, the high-resolution image is generated using this information to preserve sharpness of details. Our interpolation algorithm outperforms the state-of-the-art methods in terms of both numeric and
more » ... of both numeric and visual quality of the interpolated image.
doi:10.1109/icassp.2008.4517740 dblp:conf/icassp/VelisavljevicC08 fatcat:l732ya3rpncszbru7yvqpwrstm