加网图像的信息容量与图像的加网复制

Information-capacity of Halftone Image and it's Reproduction

图像在印前图文信息处理过程中占有较大比重，对于图像的调幅和调频加网复制而言，可容纳的信息量与实际容纳量同加网图像的阶调和细节再现紧密相关。以信息理论为基础，讨论了加网图像的信息容量问题。

For the reproduction of image with AM/FM screening method, the two factors: the capability to include information, and it's actually information-capacity of an halftome image, make a close relationship with the reproduction of gradation and detail of an image. Based on imformation theory, this article analyzes the information-capacity of half tone image.