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image-process's Introduction

数字图像处理

数字图像处理(Digital Image Processing)是指用计算机进行的处理,总的来说,包括以下几项内容:
1. 点运算
点运算主要是针对图像的像素进行加减乘除等运算。图像的点运算可以有效的改变图像的直方图分布,这对提高图像的分辨率以及图像均衡都是非常有益的。
2. 几何处理
几何处理主要包括图像的坐标转换,图像的移动、缩小、放大、旋转,多个图像的配准以及图像扭曲矫正等。几何处理是最常见的图像处理手段,几乎任何图像处理软件都提供了最基本的图像缩放功能。图像的扭曲矫正功能可以将变形的图像进行几何校正,从而得出准确的图像。
3. 图像增强
图像增强的作用主要是突出图像中重要的信息,同时减弱或者去除不需要的信息。常用的方法有直方图增强和伪色彩增强等。
4. 图像复原
图像复原的主要目的是去除干扰和模糊,从而恢复图像的本来面目。例如去噪声复原处理。
5. 图像形态学处理
图像形态学是数学形态学的延伸,是一门独立的研究学科。利用图像形态学处理技术,可以实现图像的腐蚀、细化和分割等效果。
6. 图像编码
图像编码研究属于信息论中信源编码等范畴,其主要宗旨是利用图像信号的统计特征及人类视觉特性对图像进行高效编码,从而达到压缩图像的目的。
7. 图像重建
8. 模式识别

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