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https://github.com/rainyl/dartcv
C wrappers for opencv, used for opencv_dart
https://github.com/rainyl/dartcv
Last synced: 7 days ago
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C wrappers for opencv, used for opencv_dart
- Host: GitHub
- URL: https://github.com/rainyl/dartcv
- Owner: rainyl
- License: apache-2.0
- Created: 2024-10-09T02:02:27.000Z (29 days ago)
- Default Branch: main
- Last Pushed: 2024-10-24T12:02:25.000Z (14 days ago)
- Last Synced: 2024-10-24T12:18:46.991Z (14 days ago)
- Language: C++
- Size: 336 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# dartcv
C wrappers for opencv, used for [opencv_dart](https://github.com/rainyl/opencv_dart)
## build
#### 1. Install dependencies
- Windows: Install Visual Studio 2019 or Later, cmake
- Linux: Ubuntu as example
```bash
sudo apt-get install build-essential libgtk-3-dev cmake
```
- macOS: XCode, cmake
#### 2. clone this repo
```bash
git clone https://github.com/rainyl/dartcv.git
cd dartcv
```
#### 3. compile
- Windows:
```pwsh
mkdir -Force build && cd build
cmake -S .. `
-DFFMPEG_USE_STATIC_LIBS=OFF `
-DCMAKE_INSTALL_PREFIX=install `
-DDARTCV_ENABLE_INSTALL=ON `
-DCMAKE_BUILD_TYPE=Release `
-DDARTCV_WITH_VIDEOIO=ON `
-DDARTCV_WITH_HIGHGUI=ON
cmake --build . --config Release --target install
```
- Linux
```bash
mkdir -p build && cd build
cmake -S .. \
-DCMAKE_INSTALL_PREFIX=install \
-DDARTCV_WITH_VIDEOIO=ON \
-DDARTCV_ENABLE_INSTALL=ON \
-DCMAKE_BUILD_TYPE=Release
cmake --build . --config Release --target install
```
- android
If you want to use your own NDK instead of conan maintained one, please set `ANDROID_NDK_HOME`
or `ANDROID_NDK_ROOT` environment variable, e.g., `export ANDROID_NDK_HOME=/opt/android-ndk-r26c`
```bash
mkdir -p build && cd build
cmake -S .. \
-DCMAKE_TOOLCHAIN_FILE=$ANDROID_NDK_HOME/build/cmake/android.toolchain.cmake \
-DANDROID_USE_LEGACY_TOOLCHAIN_FILE=False \
-DANDROID_PLATFORM=android-24 \
-DCMAKE_BUILD_TYPE=Release \
-DANDROID_STL=c++_static \
-DANDROID_ARM_NEON=ON \
-DDARTCV_WITH_VIDEOIO=ON \
-DDARTCV_ENABLE_INSTALL=ON \
-DANDROID_ABI="armeabi-v7a" \
-DCMAKE_INSTALL_PREFIX="install"
cmake --build . --config Release --target install
```
- MacOS: use [DartCvMacOS](https://cocoapods.org/pods/DartCvMacOS) from cocoapods or build `.dylib` using:
```bash
mkdir -p build && cd build
cmake -S .. \
-DCMAKE_TOOLCHAIN_FILE=../cmake/ios.toolchain.cmake \
-DPLATFORM=MAC \
-DDEPLOYMENT_TARGET="10.15" \
-DENABLE_BITCODE=OFF \
-DENABLE_ARC=OFF \
-DENABLE_VISIBILITY=OFF \
-DCMAKE_INSTALL_PREFIX=install \
-DDARTCV_WITH_VIDEOIO=ON \
-DDARTCV_WITH_HIGHGUI=ON \
-DDARTCV_ENABLE_INSTALL=ON \
-DCMAKE_BUILD_TYPE=Release
cmake --build . --config Release --target install
```
- ios: use [DartCvIOS](https://cocoapods.org/pods/DartCvIOS) from cocoapods
#### 4. test
- Set `DARTCV_LIB_PATH` environment variable to the path of the compiled dynamic library,
e.g., `export DARTCV_LIB_PATH=`pwd`/linux/libdartcv.so`
or `$ENV:DARTCV_LIB_PATH=$PWD\windows\dartcv.dll`
- or append the lib path to the library search path of your system
- If you want to test using vscode, add above variable to `"dart.env"` in `settings.json`
## Note
- windows: use Visual Studio 2019 and above
- more options refer to CMakeLists.txt
- set `-DDARTCV_DISABLE_DOWNLOAD_OPENCV=ON` to disable download prebuilt opencv sdk from [opencv.full](https://github.com/rainyl/opencv.full.git), you need to explicitly set `OpenCV_DIR`
- set `OPENCV_VERSION` to change the version of `opencv.full`, e.g., `-DOPENCV_VERSION="4.10.0+9"`
- set `DARTCV_CACHE_DIR` to cache opencv sdk and avoid downloading every time
- `videoio`, `highgui` requires FFMPEG, they were attached in the `libopencv` downloaded from opencv.full