Chapter two of this paper is a key part of the full text, and discussed the extraction and expression of the color, texture, and shape characteristic separately.
本文第二章是全文的核心部分，分别讨论了颜色特征、纹理特征和形状特征的提取和表达。
参考来源 - 基于内容的图像检索技术研究与系统实现They are all made of three essential factors that are the observer object, the target object and the line of sight. The pattern and method of solution are determined by the factors' geometry shape characteristic, physical property and so on.
它们都是由观察对象、目标对象和视线三大要素构成，要素的几何形态特征、物理属性等决定了解决问题的分析模式和方法。
参考来源 - DEM地形可视性统一分析模型构建与实现·2,447,543篇论文数据，部分数据来源于NoteExpress
The microscopic size and shape characteristic made by the process and other factors.
这种微观几何形状的尺寸特征，一般是由零件的加工过程和其他因素形成。
Utilizing the comprehensive method to confirm the shape characteristic of the landslide has its outstanding superiority.
利用综合方法确定滑坡形态特征具有突出的优越性。
The flow patterns are analyzed according to the receorded video pictures. The unstable flow in S-shape characteristic region is discussed.
由实验与图像处理结果获得了“S”特性区的真实流态，讨论了“S”特性区不稳定流动的原因。
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