数字图像处理是将模拟的图像信号转换成离散的数字信号并利用计算机对其进行处理的过程,其主要目的是对图像信息进行加工处理以满足人的视觉心理和实际应用的要求.与旱期模拟图像相比数字图像处理有再现能力强、处理精度高、适用面宽、灵活度高等优点.主要包括图像变换、图像增强、图像复原、图像压缩、图像分割等内容.图像是人类获取和交换信息的主要来源,图像处理的应用领域涉及到人类的方方面面,随着信息时代的来临,数字图像处理将发挥越来越重要的作用.%Digital image processing is to convert analog image signal into discrete digital signal and process them with computer, which contains transformation, enhancement, restoration, compression, segmentation etc., aiming at meeting man's requirements for visual psychology and actual application through processing image information; comparing with early analog image, it has the advantages of great rendering capacity, high processing precision, wide application, high flexibility.Image is the primary sources for human to access and exchange information; image processing had been weaved into human's everyday life.With the advent of the information age, digital image processing will play more and more important role.
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