说明：  介绍了数字图像处理的基本原理和方法，包括计算机数字图像处理的发展历史和主要内容、计算机数字图像处理的数学变换、模拟图像转换成数字图像的基本原理、图像增强、图像复原、图像的编码与压缩、图像的分割与描述、数字图像系统在医学中的应用等内容
(Introduces the basic principles and methods of digital image processing, including the development history of computer digital image processing and the main content, mathematical transformation of digital image processing computer, the basic principles of analog images into digital images, image enhancement, image restoration, image coding and compression, image segmentation and description, digital imaging systems in medical applications, etc.)