OpenCV使用均值漂移Mean Shift算法查找物体时,遇到的问题:
> main.cpp
1> All outputs are up-to-date.
1>main.obj : error LNK2001: unresolved external symbol "int __cdecl cv::meanShift(class cv::_InputArray const &,class cv::Rect_ &,class cv::TermCriteria)" (?meanShift@cv@@YAHABV_InputArray@1@AAV?$Rect_@H@1@VTermCriteria@1@@Z)
1>c:\users\pkru\documents\visual studio 2010\Projects\TestCmean\Debug\TestCmean.exe : fatal error LNK1120: 1 unresolved externals
1>
1>Build FAILE
/*------------------------------------------------------------------------------------------*\
This file contains material supporting chapter 4 of the cookbook:
Computer Vision Programming using the OpenCV Library.
by Robert Laganiere, Packt Publishing, 2011.
This program is free software; permission is hereby granted to use, copy, modify,
and distribute this source code, or portions thereof, for any purpose, without fee,
subject to the restriction that the copyright notice may not be removed
or altered from any source or altered source distribution.
The software is released on an as-is basis and without any warranties of any kind.
In particular, the software is not guaranteed to be fault-tolerant or free from failure.
The author disclaims all warranties with regard to this software, any use,
and any consequent failure, is purely the responsibility of the user.
Copyright (C) 2010-2011 Robert Laganiere, www.laganiere.name
\*------------------------------------------------------------------------------------------*/
#include
#include
#include
#include
using namespace std;
#include "..\..\include\opencv2\highgui\highgui.hpp"
#include "..\..\include\opencv2\video\tracking.hpp"
#include "..\..\include\opencv2\core\core.hpp"
#include "..\..\include\opencv2\imgproc\imgproc.hpp"
#include "..\..\include\opencv2\objdetect\objdetect.hpp"
#include "CVColorHistogram.h"
#include "CVObjectFinder.h"
int main()
{
// Read reference image
cv::Mat image= cv::imread("..\\..\\testdata\\baboon1.jpg");
if (!image.data)
return 0;
// Define ROI
cv::Mat imageROI= image(cv::Rect(110,260,35,40));
cv::rectangle(image, cv::Rect(110,260,35,40),cv::Scalar(0,0,255));
// Display image
cv::namedWindow("Image");
cv::imshow("Image",image);
// Get the Hue histogram
int minSat=65;
CCVColorHistogram hc;
cv::MatND colorhist= hc.getHueHistogram(imageROI,minSat);
CCVObjectFinder finder;
finder.setHistogram(colorhist);
finder.setThreshold(0.2f);
// Convert to HSV space
cv::Mat hsv;
cv::cvtColor(image, hsv, CV_BGR2HSV);
// Split the image
vector v;
cv::split(hsv,v);
// Eliminate pixels with low saturation
cv::threshold(v[1],v[1],minSat,255,cv::THRESH_BINARY);
cv::namedWindow("Saturation");
cv::imshow("Saturation",v[1]);
// Get back-projection of hue histogram
int ch[1]={0};
cv::Mat result= finder.find(hsv,0.0f,180.0f,ch,1);
cv::namedWindow("Result Hue");
cv::imshow("Result Hue",result);
cv::bitwise_and(result,v[1],result);
cv::namedWindow("Result Hue and");
cv::imshow("Result Hue and",result);
// Second image
image= cv::imread("..\\..\\testdata\\baboon3.jpg");
// Display image
cv::namedWindow("Image 2");
cv::imshow("Image 2",image);
// Convert to HSV space
cv::cvtColor(image, hsv, CV_BGR2HSV);
// Split the image
cv::split(hsv,v);
// Eliminate pixels with low saturation
cv::threshold(v[1],v[1],minSat,255,cv::THRESH_BINARY);
cv::namedWindow("Saturation");
cv::imshow("Saturation",v[1]);
// Get back-projection of hue histogram
result= finder.find(hsv,0.0f,180.0f,ch,1);
cv::namedWindow("Result Hue");
cv::imshow("Result Hue",result);
// Eliminate low stauration pixels
cv::bitwise_and(result,v[1],result);
cv::namedWindow("Result Hue and");
cv::imshow("Result Hue and",result);
// Get back-projection of hue histogram
finder.setThreshold(-1.0f);
result= finder.find(hsv,0.0f,180.0f,ch,1);
cv::bitwise_and(result,v[1],result);
cv::namedWindow("Result Hue and raw");
cv::imshow("Result Hue and raw",result);
cv::Rect rect(110,260,35,40);
cv::rectangle(image, rect, cv::Scalar(0,0,255));
cv::TermCriteria criteria(cv::TermCriteria::MAX_ITER,10,0.01);
int nTemp = 0;
nTemp = cv::meanShift(result,rect,criteria);
cout << "meanshift= " <
因为 CamShift and meanShift 是 video\tracking module 的一部分,所以应该增加: link the opencv_videoXXX.lib,如下图: