opencv
Solution for Building OpenCV on Termux by Disabling Android SDK and Java Support in CMake
Expected behaviour
Write here how did you expect the library to function.
Actual behaviour
Write here what went wrong.
Steps to reproduce
- example code
- operating system
- architecture (e.g. x86)
- opencv-python version
Issue submission checklist
- [ ] This is not a generic OpenCV usage question (looking for help for coding, other usage questions, homework etc.)
- [ ] I have read the README of this repository and understand that this repository provides only an automated build toolchain for OpenCV Python packages (there is no actual OpenCV code here)
- [ ] The issue is related to the build scripts in this repository, to the pre-built binaries or is a feature request (such as "please enable this additional dependency")
- [ ] I'm using the latest version of
opencv-python
Problem:
When trying to build OpenCV on Termux, the installation fails because CMake looks for Android SDK and Java tools, which are not available in Termux by default.
Solution:
To solve this issue, you can disable Android and Java support in CMake by using the following settings:
cmake -DANDROID=OFF -DBUILD_ANDROID_EXAMPLES=OFF -DBUILD_JAVA=OFF -DBUILD_FAT_JAVA_LIB=OFF -DWITH_OPENCL=OFF -DWITH_CUDA=OFF ..
This will allow OpenCV to be installed successfully in Termux without any issues related to missing Android SDK or Java.
Additional Details:
- Operating System: Android (via Termux)
- Architecture: ARM, x86, etc.
- OpenCV Version: [mention the version you tested]
Problem:
When trying to build OpenCV on Termux, the installation fails because CMake looks for Android SDK and Java tools, which are not available in Termux by default.
Solution:
To solve this issue, you can disable Android and Java support in CMake by using the following settings:
cmake -DANDROID=OFF -DBUILD_ANDROID_EXAMPLES=OFF -DBUILD_JAVA=OFF -DBUILD_FAT_JAVA_LIB=OFF -DWITH_OPENCL=OFF -DWITH_CUDA=OFF ..
This will allow OpenCV to be installed successfully in Termux without any issues related to missing Android SDK or Java.
Additional Details:
- Operating System: Android (via Termux)
- Architecture: ARM, x86, etc.
- OpenCV Version: [mention the version you tested]
I am working on the same compilation goal as you, from unbintu to aarch64 Linux Android. Are you compiling the source code from OpenCV or OpenCV Python? Can I see your complete cmake command and process? If I want to call OpenCV's library with Python 3 in termux, how do I configure it in the cmake command?
I am working on the same compilation goal as you, from unbintu to aarch64 Linux Android. Are you compiling the source code from OpenCV or OpenCV Python? Can I see your complete cmake command and process? If I want to call OpenCV's library with Python 3 in termux, how do I configure it in the cmake command?
Just write: export CMAKE_ARGS="-DANDROID=OFF -DBUILD_ANDROID_EXAMPLES=OFF -DBUILD_JAVA=OFF -DBUILD_FAT_JAVA_LIB=OFF -DWITH_OPENCL=OFF -DWITH_CUDA=OFF"
Then you'll be able to build opencv via cmake.
