电子半色调方法的研究

系统地介绍了电子半色调的基本理论及其发展,归纳选择出一些具有代表性的半色调方法,分别用软件加以实现,对其中部分算法进行了改进。详尽分析了不同电子半色调方法的特点及适用范围,对几种半色调方法进行了比较。最后,结合我所研制的光电扫描输入机的工作需要,设计完成了一种半色调算法硬件实现,完成了对灰图像实时地进行半色调化处理。

Study on Electronic Halfton Methods

This paper intruduce the basic theory and development of electronic halfton.Based onvolumes of information,several typical halfton methods were choosed and finished by softwares and some of the algorithms were improved.Compared with each other,different kindsof electronic halfton methods were deeply discussed by their features and applied rangers.Finally,we have designed a hardware of halfton algorithms for the demand of scanner.The result is that we can apply real-time halfton process to the gray-scale images.