OpenCV Android Firemonkey

OpenCV v4.2.0 (framework for computer vision) for Android Firemonkey

Prerequisites

Development environment

• Delphi Rio (with Android SDK, Android NDK and JDK 1.8.* configured)

Getting Started

Download and unzip the archive or clone repository in the folder of your choice.

https://github.com/CarlosHe/OpenCV-Android-Firemonkey.git

Adding OpenCV to your IDE

Step 1 - Open your Delphi.

Step 2 - with your IDE already open, go to the IDE options in the tools menu (Tools -> Options...)

Step 3 - with the Options window open, navigate to Delphi Library using the left side menu. (Language -> Delphi -> Library)

Step 4 - select the "Android 32-bit" platform in the Selected Platform option

Step 5 - in the item "Library path", click on the options button (3 dots, located on the right side of the option)

Step 6 - with the Directories window open, click on the button with a folder icon, to the right of an Edit

Step 7 - select the "src" folder you downloaded from this project

Step 8 - click on the "Add" button and then the "Ok" button

Step 8 - repeat steps 5, 6, 7 and 8 for the "Android 64-bit" platform

Step 9 - with all the settings made, now just click Save button

Adding OpenCV to your Android project

Step 1 - in your Android project, add the file "AndroidOpenCV.jar" ("jar" folder you downloaded from this project) in "Libraries"

Step 2 - in the menu of your IDE, click on "Project" and then click on "Deployment"

Step 3 - in the combobox of the Deployment window, choose the option "All configurations - Android 32-bit platform" and then click "Add Files" (button with an "add file" icon, located in the menu of the Deployment window)

Step 4 - navigate to the folder you downloaded from this project and add all files from the "\libs\opencv\v4.2.0\armeabi-v7a", "\ libs\cpp_shared\armeabi-v7a" and "\libs\3rdparty\armeabi-v7a"

Step 5 - after adding all the necessary files, still in the Deployment window, change the Remote Path to "library\lib\armeabi-v7a" of all the files you added in the previous step

if you also have the project for Android 64, repeat steps 3, 4 and 5 replacing:

Step 3 - Combobox value

"All configurations - Android 32-bit platform" -> "All configurations - Android 64-bit platform"

Step 4 - folder names

"\libs\opencv\v4.2.0\armeabi-v7a" -> "\libs\opencv\v4.2.0\arm64-v8a"

"\libs\cpp_shared\armeabi-v7a" -> "\libs\cpp_shared\arm64-v8a"

"\libs\3rdparty\armeabi-v7a" -> "\libs\3rdparty\arm64-v8a"

Step 5 - Remote Path value

"library\lib\armeabi-v7a" -> "library\lib\arm64-v8a"

Basic usage

add Android.OpenCV in uses section

uses Android.OpenCV;

and load OpenCV library using

initialization

TJOpenCVLoader.JavaClass.initDebug;

Good! Now you ready to use OpenCV on Android

Authors

• Carlos Modesto - Initial work - CarlosHe