本文整理汇总了C++中OpticalFlow::init方法的典型用法代码示例。如果您正苦于以下问题：C++ OpticalFlow::init方法的具体用法？C++ OpticalFlow::init怎么用？C++ OpticalFlow::init使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类OpticalFlow的用法示例。
在下文中一共展示了OpticalFlow::init方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: setup
void setup()
{
hal.console->printf("OpticalFlow library test ver 1.6\n");
hal.scheduler->delay(1000);
// flowSensor initialization
optflow.init();
if (!optflow.healthy()) {
hal.console->printf("Failed to initialise PX4Flow ");
}
hal.scheduler->delay(1000);
}示例2: displayImage
int
main(int argc, char **argv)
{
OpticalFlow optFlow;
cv::Mat mu_x, mu_y;
cv::Mat Lambda_xx, Lambda_xy, Lambda_yy;
// Timing variables
double gpuTime, gpuAccumTime = 0.0;
double totalWeight = 0.0, fps = 0;;
unsigned int timer;
CUT_SAFE_CALL( cutCreateTimer(&timer) );
/* *
* Optical flow algorithm parameters
* */
float lambdaZero = 0.15;
float lambdaOne = 0.5;
float lambdaTwo = 0.5;
float lambdaPrior = 0.1;
int windowSide = 3;
/* *
* Process command line arguments
* */
if((argc == 2) and ((strcmp(argv[1], "-h") == 0) or (strcmp(argv[1], "--help") == 0))) {
std::cerr << "Usage:\n\t" << argv[0] << " <movie.avi>" << std::endl;
return EXIT_FAILURE;
}
/* *
* Load movie, or capture from cam
* */
cv::VideoCapture capture;
if(argc == 2) {
capture.open(argv[1]);
if(not capture.isOpened()) {
std::cerr << "Could not open file " << argv[1] << std::endl;
return EXIT_FAILURE;
}
} else {
capture.open(0); // Any camera is good
CB_PRINT_VAR(capture.isOpened());
if(not capture.isOpened()) {
std::cerr << "Could not capture from camera." << std::endl;
return EXIT_FAILURE;
}
}
cv::Mat frame;
cv::Size frameSize;
cv::Mat frames[3], auxBW;
int prevIdx = 0, currIdx = 1, nextIdx = 2;
capture >> frame; //framePtr = cvQueryFrame(capture);
frameSize = frame.size();// cvGetSize(framePtr);
// garantee that the smallest image side is bigger than 32 pixels
int maxLevels = int( log(MIN(frameSize.width, frameSize.height))/log(2.0) - 4.0 );
int nLevels = maxLevels;
auxBW.create(frameSize, CV_8UC1);
for(int i = 0; i < 3; i++)
frames[i].create(frameSize, CV_32FC1);
mu_x.create(frameSize, CV_32FC1);//IPL_DEPTH_32F, 1);
mu_y.create(frameSize, CV_32FC1);//, IPL_DEPTH_32F, 1);
Lambda_xx.create(frameSize, CV_32FC1);//, IPL_DEPTH_32F, 1);
Lambda_yy.create(frameSize, CV_32FC1);//, IPL_DEPTH_32F, 1);
Lambda_xy.create(frameSize, CV_32FC1);//, IPL_DEPTH_32F, 1);
cv::cvtColor(frame, auxBW, CV_BGR2GRAY);
auxBW.convertTo(frames[prevIdx], CV_32FC1, 1/255.0);
capture >> frame;
cv::cvtColor(frame, auxBW, CV_BGR2GRAY);
auxBW.convertTo(frames[currIdx], CV_32FC1, 1/255.0);
optFlow.init(frames[prevIdx], frames[currIdx],
nLevels, windowSide,
lambdaZero, lambdaOne, lambdaTwo, lambdaPrior);
/* *
* Simple GUI
* */
CvPoint textCorner = cvPoint(20, 20);
int pressedKey = 0;
const char *displayWindowName = "Optical Flow Demo";
const char *controlWindowName = "Optical Flow Controls";
CvSize infoImageSize = cvSize(300, 200);
cvNamedWindow(displayWindowName, 0);
//.........这里部分代码省略.........