A tutorial on cross-compiling OPENCV--AARCH64-LINUX-GNU-based cross compiler

1, access to opencv-3.3.1 source

Address: Https://pan.baidu.com/s/1U-UZcZ2fFI_ihJD-_jRcFg

Password: 2YFJ

2. Unzip the source package

Command: Unzip Opencv-3.3.1.zip

3. Create a new folder under the OpenCV source directory

Command: mkdir Build

4. Install software cmake and Cmake-gui

Command: Apt-get install CMake Cmake-qt-gui

Note: The root user needs to be run.

5, open the CMake interface program in the source directory of OpenCV

Command: Cmake-gui

6. Setting the CMake interface

(1) Set the source address to:

/home/bme308/opencvsrc/opencv-3.3.1

(2) Set the build address to:

/home/bme308/opencvsrc/opencv-3.3.1

(3) Adding add Entry:

Name=cmake_ar;

Type=filepath;

Value=/usr/local/arm/ext-toolchain/bin/aarch64-linux-gnu-ar

(4) Click Configure, select Specify Toolchain for cross-compiling.

Click Next to set specify the Toolchain file as:

/home/bme308/opencvsrc/opencv-3.3.1/platforms/linux/aarch64-gnu.toolchain.cmake

Click Finish.

Attention:

①.cmake_install_prefix represents the installation directory, the default is:

/home/bme308/opencvsrc/opencv-3.3.1/build/install

When you execute the Make install command, the library files and header files are placed in this folder, and you can change the path according to your own situation.

②. You need to select With_gtk_2_x.

③. When you want to get a dynamic library, check build_shared_libs:

When you want to get a static library, cancel Build_shared_libs:

(5) Click Configure again, and then click Generate.

7. Compiling and installing

Close Cmake-gui, go to the Build folder: CD build, then do make, probably wait 30 minutes after the compilation is complete, then do install.

The results of this article are finally compiled in the following link:

Address: HTTPS://PAN.BAIDU.COM/S/1SIJF1XQROEVQ4A9KAUKKCW

Password: YHQB

Description

(1) Install_so: Generated dynamic library

(2) Install_a: generated static library

PostScript: Welcome all the way to the great God criticism and correction!

2018.04.13

A tutorial on cross-compiling OPENCV--AARCH64-LINUX-GNU-based cross compiler