Question

我正在尝试使用一个模板在视频流上执行多个模板，这可能吗？我尝试使用for循环使代码运行超过1次，但是，当第二个矩形出现时，第一个矩形消失。以下是我的代码，我正在使用ROS。

$eventsManager->attach('db:beforeQuery', function($event, $connection) {
    $profiler->startProfile(statement2sql($connection));
}

$eventsManager->attach('db:afterQuery', function($event, $connection) {
    $profiler->stopProfile();
}

Answer 1

使用阈值和while循环检查图像中的多个模板

while(true)
{
    int threshold = 0.9;
    double minVal; double maxVal; Point minLoc; Point maxLoc;
    Point matchLoc;

    minMaxLoc( result, &minVal, &maxVal, &minLoc, &maxLoc, Mat() );

    /// For SQDIFF and SQDIFF_NORMED, the best matches are lower values. For all the other methods, the higher the better
    if ( match_method  == CV_TM_SQDIFF || match_method == CV_TM_SQDIFF_NORMED )
    { matchLoc = minLoc; }
    else
    { matchLoc = maxLoc; }

    /// Show me what you got
    if(maxval >threshold && 0!=matchLoc .x && 0!=matchLoc .y )
{
    rectangle( img_display, matchLoc, Point( matchLoc.x + templ.cols , matchLoc.y + templ.rows ), Scalar::all(255), 2, 8, 0 );
    rectangle( result, matchLoc, Point( matchLoc.x + templ.cols , matchLoc.y + templ.rows ), Scalar::all(255), 2, 8, 0 );
}
 else
{
break;
}
}

Opencv :: Multi-template与实时应用程序中的一个模板匹配

1 个答案: