首页>
外国专利>
Filtering method and filtering apparatus for recovering anti-aliasing edge
Filtering method and filtering apparatus for recovering anti-aliasing edge
展开▼
机译:恢复抗混叠边缘的滤波方法和滤波装置
展开▼
页面导航
摘要
著录项
相似文献
摘要
Embodiments of the present application provide a filtering method and apparatus for recovering an anti-aliasing edge. The method includes: calculating, for a nonlinearly filtered image, a variance value of an area surrounding a current pixel used for identifying an edge of the image; and re-filtering the current pixel when the variance value is greater than a predefined first threshold value, so as to recover an anti-aliasing edge. With the embodiments of the present application, aliasing noises resulted from nonlinear transform may be alleviated, thereby recovering an anti-aliasing edge of a natural object.
展开▼