apriltag | visual fiducial system popular for robotics research | Machine Learning library
kandi X-RAY | apriltag Summary
kandi X-RAY | apriltag Summary
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of apriltag
apriltag Key Features
apriltag Examples and Code Snippets
Lines of Code : 11
License : No License
Copypackage main
import "github.com/go-martini/martini"
func main() {
m := martini.Classic()
m.Get("/", func() string {
return "Hello world!"
})
m.Run()
}
Community Discussions
Trending Discussions on apriltag
QUESTION
I am trying to include Opencv to my native C code in an android studio project through Cmake. I did some research online and downloaded the FindOpenCV.cmake file from online and added it to the app directory of my android project. This is also where the CMakeLists.txt is located. I imported OpenCV onto my Android Studio project as a module using this tutorial: https://www.learn2crack.com/2016/03/setup-opencv-sdk-android-studio.html, and when I run:
...ANSWER
Answered 2019-Oct-24 at 14:24UPDATE 21-Oct-19: Deprecated Git/Simpler Way in favor of new AndroidOpenCVGradlePlugin
UPDATE 22-May-18: Added missing step number 6.
UPDATE 10-May-17: New solution provides proper integration of OpenCV into application with CMake and Android Gradle plugin 2.3.1. Tested using Android Studio 2.3.1.
UPDATE 11-May-17: An additional solution has been provided
There are two ways of including OpenCV.
Using AndroidOpenCVGradlePlugin
Visit https://github.com/ahasbini/AndroidOpenCVGradlePlugin for more details.
Git/Simpler Way
Visit https://github.com/ahasbini/Android-OpenCV for more details.
Manual/Advanced Way
To include OpenCV libraries into Android Studio Project, its best to create a new Library Module in the project and port the files from OpenCV Android SDK bundle into it:
- Create a new module by selecting File>New Module.
- Select "Android Library", and then enter the details:
- Library name:
OpenCV - Module name:
opencv - Package name:
org.opencv
- Library name:
- Once the new module created, copy the contents of
path_to_opencv_sdk/sdk/java/srcdirectory intopath_to_your_project/opencv/src/main/java. - Under
main, create the following directly path:aidl/org/opencv/engineand movemain/java/org/opencv/engine/OpenCVEngineInterface.aidlinto it. - Copy the contents of
path_to_opencv_sdk/sdk/java/resintopath_to_your_project/opencv/src/main/res. - Create
sdkfolder insidepath_to_your_project/opencv/src/and copypath_to_opencv_sdk/sdk/nativefolder into it. - Within the
opencvmodule, createCMakeLists.txtfile and add the following lines in the following order:
QUESTION
I have the following folder hierarchy.
...ANSWER
Answered 2019-Feb-18 at 06:51Ok, I'm going to buzz in a little bit early. I may have the solution to your problem. If I don't, we can go back to figuring it out.
As you've probably seen, the docs say
The directory containing the script being run is placed at the beginning of the search path,
Now, you're running my_notebook.ipynb, so it's directory is the very beginning of the search path. And you probably have an __init__.py file in the apriltag directory that's at the same level. As such, it's being found as a module, and loaded. And there are no .py files in that "module", and nothing in your __init__.py there, so it's loading as an empty module.
Instead, don't try modifying the sys.path directory, just make empty __init__.py files in both the apriltag and the python directories.
Then, you should be able to do the following:
QUESTION
I'm trying to run the example in the apriltags library, and I keep getting this error:
...ANSWER
Answered 2018-Jun-15 at 16:26This issue persists with the newer versions of OpenCV. It can be easily fixed by changing line 95 of src/TagDetection.cc from cv::Matx33f cameraMatrix( to cv::Matx33d cameraMatrix(.
Note, this is simply converting from float to double. Alternatively, you can use this library (https://github.com/PrieureDeSion/apriltags-cpp), which I have made changes to and tested with Ubuntu 16 and OpenCV.
QUESTION
I'm trying to return an array of structs in Cython.
...ANSWER
Answered 2017-Oct-03 at 06:52You seem to have solved your problems, but I would like to answer the question nevertheless. First because I would like to try it out and second because I think you have some problems with memory management and I would like to point it out.
We will wrap the following simple C-interface:
QUESTION
I am trying to call a C function in Cython and the header looks like this:
...ANSWER
Answered 2017-Oct-02 at 19:09This is basically covered in this part of cython documentation, which says that you only need to import parts, which you will be using in your cython code.
For example let's take a look at the following C interface:
QUESTION
I am trying to use a C library (apriltag) in my android app (4.4) using the NDK. I prebuilt the library using the android toolchain. After that, I followed this tutorial (link) to use apriltag in my C++ module.
My android.mk :
...ANSWER
Answered 2017-Jun-21 at 04:20Because you are using a prebuilt shared library, libapriltag.so. You have to let gradle add it to your apk also, and then you can use it into gle_main. You have to add this line to your module/build.gradle script
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