first commit

Author: andy6804tw

.gitignore

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+.DS_Store
+opencv-android-build
+opencv
+opencv_contrib

README.md

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+# 編譯 OpenCV for Android
+
+本文件說明如何自行編譯適用於 Android 平台的 OpenCV 函式庫。
+
+## 步驟
+
+### 1. 下載原始碼
+
+首先，從 GitHub 下載 OpenCV 和 OpenCV Contrib 的 4.5.2 版本原始碼。
+
+```bash
+git clone -b 4.5.2 https://github.com/opencv/opencv.git
+git clone -b 4.5.2 https://github.com/opencv/opencv_contrib.git
+```
+
+### 2. 執行編譯腳本
+
+接著，賦予編譯腳本執行權限並執行它。
+
+```bash
+chmod +x opencv_android_build.sh
+./opencv_android_build.sh
+```
+
+此腳本將會自動處理編譯過程，產生包含 arm64-v8a, armeabi-v7a, x86, 和 x86_64 架構的 Android SDK。編譯完成後，可以在 `opencv-android-build/OpenCV-android-sdk` 目錄下找到所需的 `libopencv_world.so` 檔案以及相關的函式庫。

Screenshot/img1141122-1.png

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+OPENCV_SRC=$PWD/opencv
+OPENCV_CONTRIB=$PWD/opencv_contrib
+OPENCV_BUILD=$PWD/opencv-android-build  # output folder
+ANDROID_SDK=$HOME/Library/Android/sdk
+ANDROID_NDK=$ANDROID_SDK/ndk/27.0.12077973  # change to your ndk folder  ls ~/Library/Android/sdk/ndk/
+CONFIG_FILE=$PWD/ndk-27.config.py  # adjust to match your NDK version
+
+mkdir -p $OPENCV_BUILD
+cd $OPENCV_BUILD
+
+if [ -d "$ANDROID_SDK/cmdline-tools/latest" ]; then
+  if [ ! -d "$ANDROID_SDK/tools" ]; then
+    echo "Creating symlink for cmdline-tools"
+    ln -s "$ANDROID_SDK/cmdline-tools/latest" "$ANDROID_SDK/tools"
+  fi
+fi
+
+python3 $OPENCV_SRC/platforms/android/build_sdk.py \
+    $OPENCV_BUILD \
+    $OPENCV_SRC \
+    --ndk_path $ANDROID_NDK \
+    --sdk_path $ANDROID_SDK \
+    --extra_modules_path $OPENCV_CONTRIB/modules \
+    --config $CONFIG_FILE \
+    --use_android_buildtools \
+    --no_samples_build