vector

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convert keypoints to mat or save them to text file opencv

I have extracted SIFT features in (opencv open source) and they are extracted as keypoints. Now, I would like to convert them to Matrix (With their x,y coordinates) or save them in a text file...[详细]

2023-04-10 04:31 分类：问答
C++ vector size types

I just started learning C++ and have a question about vectors. The book I\'m reading states that if I want to extract the开发者_如何转开发 size of a vector of type double (for example), I should do so[详细]

2023-04-10 00:34 分类：问答
Remove an element from a vector by value - C++

If I have vector<T> list Where each element in the list is unique, what\'s the easiest way of deleting an element provided that I don\'t know if it\'s in the list or not? I don\'t know the i[详细]

2023-04-09 22:08 分类：问答
Segmentation fault when adding a vector. (C++)

So I\'ve got a pretty basic class that has a few methods and some class variables. Everythings working great up until I add a vector to the member variables in the header file:[详细]

2023-04-09 21:28 分类：问答
c++ no suitable user-defined conversion from "myClass1" to "myClass1" exists

I\'m very new to c++ and was really confused when this syntax error was highlighted by visual studio 2010.[详细]

2023-04-09 20:46 分类：问答
Rolling apply to subset of a vector

I want to apply a function to progressive subsets of a vector in R. I have looked at what i could find, and the apply and friends aren\'t quite there, and rollapply does not work on straight vectors,[详细]

2023-04-09 19:35 分类：问答
Calling a method of an object through a Vector

This is a part of a larger program that I\'m doing where the user can create a Flight object by entering data into JTextFields.The data is stored into a Vector, called flightList.On a second panel of[详细]

2023-04-09 19:27 分类：问答
Query about Properties Vectors in C++

I am kind of开发者_高级运维 a beginner and just came across the concept of vectors in C++. I have a few questions about it[详细]

2023-04-09 18:05 分类：问答
moving pointer between vectors in vector causes vector iterators incompatible

I have std::vector of cells. Each cell has other std::vector to store some pointers to entities. Now I want to move pointer from one cell to another based on calculation new cell index.[详细]

2023-04-09 17:27 分类：问答
How to initialize a vector in MATLAB as per a pattern?

I am completely new to MATLAB.This may be a rather basic question. Given numerical values for size, extras and max, I need to initialize a 1 X N vector such that the first size elements are 1, the ne[详细]

2023-04-09 09:05 分类：问答