An Edge Preserved Image Interpolation Method
Yang Bao-qiang · Journal of Air Force Engineering University · 2007
In the process of image super-resolution reconstruction,there is a need for interpolating pixels in the low-resolution image.On the basis of detecting the edge of low-resolution image and in consideration of its direction,the pixels belong to edges in the reconstructing high-resolution image are interpolated at first.Then,other zero-padding pixels are interpolated by using the bi-cubic method.By comparison with the results of nearest-neighborhood interpolation,bi-linear interpolation and the traditional bi-cubic interpolation, the result of this experiment on Lena image shows that the image edges are better persevered.