Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
846064 | Optik - International Journal for Light and Electron Optics | 2015 | 4 Pages |
Abstract
We develop a modified high-pass filtering approach by using a 5 × 5 mask. The traditional filtering-mask here is separated to two respective ones weighed by different constants. One of them consists of four coefficients in the vertical and horizontal directions, relating to the critical higher frequencies. The other is with eight coefficients in different directions, relating to the critical low-intermediate frequencies. The merit of this masking was disclosed by employing nonlinear transfer functions, which had been proved liable to reduce the overshooting phenomenon. The final image is subject to acquire ultra-fine characteristics.
Related Topics
Physical Sciences and Engineering
Engineering
Engineering (General)
Authors
Ching-Chung Yang,