伪中间灰度图像输出的研究

The Study of the Output of Pseudo Continuous Tone Image

在计算机图像处理领域中,随着高分辨点阵式输出设备的发展和进步,采用由黑/白二值色点形成伪中间灰度图像的表现方法正在受到广泛的重视,其中较为典型的有浓度参数法(Fixed Pattern)和Dither法。本文介绍了多值图像到二值图像的基本处理方法,例举了大量的实际应用矩阵型式,较为详细地讨论了这两种方法的点阵组织、实现方法,并探讨了它们的内在关系。

With the development of output equipments of high resolution dot matrix, the showing method of forming false medium grey scale image by the colour dot of bi-level (black/white) is widely being valued, in the field of computer image processing. Fixed pattern and Dither are typical methods. This paper not only introduces the basic processing ways from grey level image to bi-level image, but also gives a lot of practical matrices. The organization of dot matrices and the realization methods and their relationships are also discussed.