Advanced edge-preserving pixel-level mesh data-dependent interpolation technique by triangulation

摘要

A novel algorithm called "edge-preserving pixel-level interpolation by triangulation" is proposed for interpolating the image. This algorithm can be used in arbitrary resolution enhancement and solve the problem of edge preserving in interpolating the input image. It is simpler than other conventional methods and is adaptable to a various image process. The basic idea is to first estimate the direction of edge in a small region and then use different way to deal with each situation. The most essential point is to maintain the Parallelism of lines around edges. Two concepts have been considered in interpolating process: (1) edge direction confirm (2) parallel line preserved. Good experiments results showing the effectiveness of edge preserving and its superiority to other methods are also included.