1.2 等待delay>0毫秒,如果在此期间有按键按下,则立即结束并返回按下按键的ASCII码,否则返回值为-1;若delay=0毫秒,则无限等待下去,直到有按键按下为止; 1.3 waitKey仅仅对窗口机制起作用,即nameWindow或者imshow产生的窗口; 1.4 注意,waitKey返回值是int类型的; 2.格式转换; 如果waitKey函数不进行数据格式转换为...
int waitKey(int delay = 0); 函数功能: 每隔delay时间(单位:ms),进行图像刷新。 返回值: 键盘按键的ASCII值。 注意: delay>0,才能进行图像刷新; delay=0,只显示第一帧图像; delay<0,只显示第一帧图像;
Frame.cols/Scale,CV_8SC1);resize(Frame,Frame,Small_Img.size(),0,0,INTER_LINEAR);//识别函数detectAndDraw(Frame,cascade,nestedCascade,2,0);//按Esc退出程序intkey;key=waitKey(10);if(key=='q'||key=='Q'||key==27)break;}return0;}inlinevoidhide(){CONSOLE_CURSOR_INFOcursor...
cvWaitKey(0); cvDestroyWindow("lena"); cvReleaseImage(&src); } 后面要用matlab编译C++(含opencv调用)的代码的流程和MacOS的一样,也是先Mex -setup设置编译器,然后编译的时候就按照本文红色加粗字那样给出相应路径即可编译成功。 例子: 1 mex bofGabor.cpp cvgabor.cpp Image.cpp Retriever.cpp -IE:\opencv\...
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Jan 16 14:47:06 AP9124_RAP kernel: [*01/16/2024 14:47:06.1172] EVENT-MeshSecurity: Intermodule message KEY_ADD_NOTIFICATION Jan 16 14:47:06 AP9124_RAP kernel: [*01/16/2024 14:47:06.1173] EVENT-MeshSecurity: save pmk for Ch...
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百度试题 题目cv2.waitKey()函数的作用是: A.显示图像B.读取图片C.窗口等待D.删除所有窗口相关知识点: 试题来源: 解析 C 反馈 收藏
();userdatadata;data.im=im_temp;imshow("Image",im_temp);cout<<"Click on four corners of a billboard and then press ENTER"<<endl;setMouseCallback("Image",mouseHandler,&data);//鼠标waitKey(0);Math=findHomography(pts_src,data.points);//变换矩阵warpPerspective(im_src,im_temp,h,im_temp...