kandi X-RAY | OpenCVTest Summary
kandi X-RAY | OpenCVTest Summary
Top functions reviewed by kandi - BETA
- Initialize the camera .
- Installs OpenCV manager .
- Called when the OpenCV application is connected .
- Convert Vector3 points to matrices .
- Delivers the camera frame .
- Initializes OpenCV library .
- Returns a string representation of a CVType .
- Determine the points of this shape .
- Measure FPS .
- Calculate calibration matrix values
OpenCVTest Key Features
OpenCVTest Examples and Code Snippets
Trending Discussions on OpenCVTest
I am experimenting with the schedule library with Python and they have some examples on how to pass an argument as shown below in the
ANSWERAnswered 2022-Mar-03 at 03:07
You can pass the arguments to a class and create instances of the class for every thread.
I am trying to use OpenCV in VS Code. Here's what I've done:
Installed OpenCV for windows.
PATH environment variable.
ANSWERAnswered 2022-Feb-01 at 15:04
As the error suggests, CMake found your OpenCV installation, but it is not compatible. What is it not compatible with? Your compiler. The OpenCV installation is built with MSVC 15 (it also includes a 14 build). You have asked CMake to use MinGW as your compiler. Libraries need to have been built with the same (well, with some leeway) compiler for everything to work.
You have two options:
- Build OpenCV yourself with MinGW, or try a third-party MinGW binary distribution of OpenCV. Web searches for "opencv mingw" turn up some possibilities.
- Use the MSVC compiler for your project. Microsoft offers some free versions of its tools. Just be sure to install the optional older toolsets so that you have access to the VC 15 tools to match OpenCV.
Also in this App i want the user to pick an image from phone's gallery. To handle it, I'm using PHPicker. However, with Excluded Architectures set, I'm not able to pick any image from the gallery, there's buch of errors/warnings in Terminal. Without Excluded Architectures app will crash with Error as at second screen. Any ideas or tips ?Error from screen ...
ANSWERAnswered 2022-Jan-27 at 10:42
so, building for iOS Simulator, but linking in object file built for iOS, for architecture arm64 I guess that means you need the library built for the simulator, not for the actual target device.
It works when you try compile it, using real iPhone/iPad
I know that this has been posted many times,but I could not find the solution from previous posts. I followed tutorial on How to setup Qt and openCV on Windows from wiki Qt.
.pro file and
mainwindows.cpp are shown below. I wanted to open image following the example. What is wrong here? Checked the opencv version and it is the same as libs included. The
PATH is also correct.
The cpp file
ANSWERAnswered 2021-Mar-16 at 18:09
When program crashes like that under Qt Creator, and you have extra libraries, the very likely reason is that the extra libraries are missing from the runtime
In this case, you need to add
C:\opencv-build\bin to the PATH. There are at least 3 ways to go about it.
Edit the system environment, so that the relevant directory is always in the system
PATH. You need to restart Qt Creator for this change to take effect. This is not the recommended way, unless you actually want these things in there also for other purposes.
You can edit the Build environment of the project under Qt Creator Project view. There's separate configuration for each build type, so you may need to do this to them all separately, which both good and bad. It is good, because then you can have different directory for different builds (for example debug vs relase, MSVC vs MinGW builds). It's bad because it's extra hassle and makes it easier to have something wrong.
You can add it to the run environment in the Qt Creator Project view. Then it will be the same for all build types.
In this case, 3 is probably the way to go.
Qt Creator annoyingly does not display any information about which DLL is missing, it just says the program crashed. This can be solved by instead string the "Qt command prompt" for the correct toolchain from Windows Start menu (search Qt and you should find it). Then go to the built .exe directory and run the .exe. You should now get an error dialog where Windows tells you which DLL it failed to find. Then you can look where that DLL is and add it to the path and try again, until the program starts. After you know the directories using this method, you can then add them to Qt Creator as explained above.
My application requires that the OpenCV VideoCapture object be used as a member variable. There is no way around this requirement.
I am experiencing strange behavior when using
cv::VideoCapture as a member of a user-defined class. I've run the following code:
ANSWERAnswered 2020-Nov-10 at 18:30
The real problem is in this line
Hello all I am trying to use opencv-c++ API (version 4.4.0) which I have built from source. It is installed in /usr/local/ and I was simply trying to load and display an image using the following code -...
ANSWERAnswered 2020-Aug-17 at 17:51
The solution is to just include_directories path till
/usr/local/opencv4 and it works perfectly.
However, the best way I believe is to use the
find_package function. I updated my Cmake to the following and it takes care of linking during build.
No vulnerabilities reported
You can use OpenCVTest like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the OpenCVTest component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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