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在OpenCV中

[英]Vector<Vec3b> difference with Vector<int> in OpenCV

原文 2016-02-26 02:34:35 1 1 c++/ image/ opencv/ image-processing/ vector

My project is about the moving puck detection and location finding on hockey table. 我的项目是关于冰球桌上的移动冰球检测和位置查找。 I need to use HoughCircles to detect the circular form of the puck. 我需要使用HoughCircles来检测圆盘的圆形形状。 But for this hough alghoritm I need to make a Vector . 但是为此，我需要制作一个Vector 。 I am familiar with Vector concept and how it is working ( basic), but there is problem of differentiating for example Vector<int> Vec and Vector<Vec3b> Vec . 我熟悉Vector概念及其工作原理（基本），但是存在区分Vector<int> Vec和Vector<Vec3b> Vec 。

Is it possible to somebody let me know what is their difference in meaning and application? 有人可以让我知道他们在含义和应用上有什么区别吗？

1 个解决方案

Pay attention that Vector and vector are different. 注意Vector和vector不同。 vector is std::vector , while Vector is cv::Vector . vector是std::vector ，而Vector是cv::Vector 。 Even if in practice the difference is minimal, they are really different things. 即使实际上差异很小，它们实际上是不同的东西。

I'll assume you meant std::vector , but in this context this is valid also for cv::Vector . 我假设您的意思是std::vector ，但是在这种情况下，这对于cv::Vector也是有效的。

A vector<int> is a vector of integers. vector<int>是整数的向量。 Nothing fancy about this. 没什么好看的。

A vector<Vec3b> is a vector of cv::Vec3b , which is an OpenCV structure that holds 3 uchar ( unsigned char ), ie a type with 8 bit that can contain data from 0 to 255. It is in fact defined as a cv::Vec_<uchar, 3> . vector<Vec3b>是cv::Vec3b的向量，它是一个OpenCV结构，包含3个uchar （ unsigned char ），即一种8位类型，可以包含0到255的数据。实际上，它定义为a cv::Vec_<uchar, 3> 。 cv::Vec is a template class that represents short numerical vectors, up to 4 elements, but this is not important here. cv :: Vec是一个模板类，表示短的数字矢量，最多4个元素，但这在这里并不重要。