摘要
该文针对数字图像,提出了一种新的滤波器—数字图像投影滤波器。这种滤波器实现简单,仅将原图像按行和列投影得到一幅投影图,然后和原图像线性组合而成,因此是一种自适应滤波器。该文从理论上分析和证明它的滤波原理和一些特性,并且在数字图像滤波方面作了大量的实验,从空间域和频率域结合分析,证明了这种滤波器没有丢失任何原始数据信息,却有数据量减小和特征增强的特性。在实验中重点研究了在人脸特征增强方面的应用。
A novel projection-based filter is proposed in this paper,which is applied in the digital image processing.This filter is easily implemented by combining linearly the original image with its horizontal and vertical projections.The principle and property of the proposed filter are discussed in detail,and abundant experiments are done in digital image filtering.It is proved that the filter can reduce the data and enhance the main feature without loosing the information about the original data.Authors pay more attention to the application of face feature enhancement in the experiment.
出处
《计算机工程与应用》
CSCD
北大核心
2004年第36期109-111,150,共4页
Computer Engineering and Applications
基金
国家自然科学基金资助项目(编号:60272095)
关键词
滤波器
投影
特征增强
图像压缩
filter,projection,feature enhancement,image compression
