ricktjwong/docker-java-opencv repository overview

⁠docker-java-opencv

Docker image for opencv-3.4.2 (with contrib files) java installation:

• java version: openjdk-8
• opencv version: 3.4.2

To test this docker image with circleci, do the following:

• install circleci and docker locally
• git clone https://github.com/ricktjwong/pHash.git⁠
• cd into the directory
• run circleci build

Note:

• The opencv lib file (libopencv_java342.so) exists in /opt/opencv-3.4.2/build/lib in the docker image
• The opencv jar file (opencv-342.jar) exists in /opt/opencv-3.4.2/build/bin in the docker image
• Using the docker image as the primary container will allow the user to access these files
• To see a sample config.yml file, look in the pHash repository under /.circleci
• To run tests that require opencv as a dependency, the following has to be specified in the pom.xml for the java project:

    <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-surefire-plugin</artifactId>
        <version>2.20.1</version>
        <configuration>
            <argLine>-Djava.library.path=/opt/opencv-3.4.2/build/lib</argLine>
        </configuration>
   </plugin>
   <dependency>
        <groupId>org.opencv</groupId>
        <artifactId>opencv</artifactId>
        <version>3.4.2</version>
   </dependency>

• The dependency tag specifying opencv can be used as OpenCV has been installed natively into the .m2 file in the docker container