zhjali123的专栏

OpenCV python code, GitHub项目,中路径OpenCVDemo/OpenCvPythonDemo/VlogHelper/CreateVideo.py // 我用的mac，发现用XVID不生效 out = cv2.VideoWriter('project.avi', cv2.VideoWriter_fourcc('M','J','P','G'), 1, size) AVI M...

Error message: CMake Error at CMakeLists.txt:11 (message): FATAL: In-source builds are not allowed. You should create a separate directory for build files. 第一次没有cd到my_build_dir，报错：不能再...

我用的mac, python 3.6.5 ,opencv 4 case 编码器问题 cv2.VideoWriter_fourcc(*'XVID') 上述不可用，换成就ok了。 cv2.VideoWriter_fourcc('M','J','P','G') 参考官网VideoWriter_fourcc another case 当然常见的是dims，摄像头的 预览size，和VideoWri...

Python 3.6的直接去官网下载就好 接入网址 Original command 注意更改主机的路径：-D OPENCV_EXTRA_MODULES_PATH=/Users/apple/CWorkSpace/OpenCv/opencv_contrib/modules $ workon cv $ cmake -D CMAKE_BUILD_TYPE=RELEASE \ -D CMAKE_...

Context 报这个错，我一直当是library找不到。没想到最后是没写-I 报错信息 Undefined symbols for architecture x86_64: "cv::namedWindow(cv::String const&, int)", referenced from: _main in HelloWorld-f6034d.o "cv::Stri...

源码构建的两个阶段 1. Compile 只需要头文件在，不关心是否实现 对应的编译器参数 -I头文件路径 g++ -I/header/directory/include CMakeList 全局的 INCLUDE_DIRECTORIES( /header/directory/include /headeer/directory2/include ) 指定target targ...

测试生效的方法 在module的build.gradle 中指定 android { compileSdkVersion 29 buildToolsVersion "29.0.0" defaultConfig { minSdkVersion 15 targetSdkVersion 29 versionCode 1 ...