Idea Java Spring Boot支持OpenCV – 4.1.1

今天药忘吃喽~ 2024-04-20 08:28 59阅读 0赞

### Idea Java Spring Boot支持OpenCV – 4.1.1 ###

*  下载
 *  Idea配置
 *   *   *  解压
         *  项目添加lib
         *  代码加载dll
 *  验证

# 下载 #

从github中下载，网址[https://github.com/opencv/opencv/releases][https_github.com_opencv_opencv_releases]，也可以从官网https://opencv.org/releases/，下载opencv-4.1.1-vc14\_vc15.exe  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NuZGF5WVU_size_16_color_FFFFFF_t_70]

# Idea配置 #

### 解压 ###

exe解压到D:\\YDGreen\\，找到下面两个文件

*  D:\\YDGreen\\opencv\\build\\java\\opencv-411.jar
 *  D:\\YDGreen\\opencv\\build\\java\\x64\\opencv\_java411.dll  
    复制到项目的resource\\lib下  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NuZGF5WVU_size_16_color_FFFFFF_t_70 1]

### 项目添加lib ###

pom.xml方式

<dependency>
        <groupId>org</groupId>
        <artifactId>opencv</artifactId>
        <scope>system</scope>
        <systemPath>${project.basedir}\src\main\resources\lib\opencv-411.jar</systemPath>
    </dependency>

或者在idea里面添加，如下所示  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NuZGF5WVU_size_16_color_FFFFFF_t_70 2]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NuZGF5WVU_size_16_color_FFFFFF_t_70 3]

### 代码加载dll ###

加载dll的两种方式

// 方法一
    启动参数添加
    -Djava.library.path=D:\PData\baidunet\image-process\src\main\resources\lib\;
    代码
    System.loadLibrary(Core.NATIVE_LIBRARY_NAME);
    
    // 方法二
    System.load("D:\\PData\\baidunet\\image-process\\src\\main\\resources\\lib\\opencv_java411.dll");

# 验证 #

import org.junit.Test;
    import org.opencv.core.Mat;
    
    import java.util.ArrayList;
    import java.util.List;
    
    import static org.opencv.core.Core.merge;
    import static org.opencv.core.Core.split;
    import static org.opencv.highgui.HighGui.imshow;
    import static org.opencv.highgui.HighGui.waitKey;
    import static org.opencv.imgcodecs.Imgcodecs.imread;
    import static org.opencv.imgproc.Imgproc.equalizeHist;
    
    /**
     * OpenCV测试
     * @author ydfind
     * @date 2019.9.20
     */
    public class OpenCVTest {
    
        /**
         * 测试OpenCV是否能运行：需要自行修改图片位置
         * @throws Exception 测试是否成功
         */
        @Test
        public void testOpenCV() throws Exception {
            URL url = ClassLoader.getSystemResource("lib/opencv_java411.dll");
            System.load(url.getPath());
            Mat image = imread("D:\\tmp\\20190920122234.png", 1);
            if (image.empty()){
                throw new Exception("image is empty!");
            }
            imshow("Original Image", image);
            List<Mat> imageRGB = new ArrayList<>();
            split(image, imageRGB);
            for (int i = 0; i < 3; i++) {
                equalizeHist(imageRGB.get(i), imageRGB.get(i));
            }
            merge(imageRGB, image);
            imshow("Processed Image", image);
            waitKey();
        }
    }

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NuZGF5WVU_size_16_color_FFFFFF_t_70 4]

[https_github.com_opencv_opencv_releases]: https://github.com/opencv/opencv/releases
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NuZGF5WVU_size_16_color_FFFFFF_t_70]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/18/8b30a970544a4ce0b746f6d97342fd2a.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NuZGF5WVU_size_16_color_FFFFFF_t_70 1]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/18/e035e3a07f9c4183a7784a8b42c50026.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NuZGF5WVU_size_16_color_FFFFFF_t_70 2]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/18/867b775d59d54287865a9ba1d77d947c.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NuZGF5WVU_size_16_color_FFFFFF_t_70 3]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/18/cfa1db08c7b946ada277c688618e4b07.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NuZGF5WVU_size_16_color_FFFFFF_t_70 4]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/18/9f020fa98d964a1384fdbf8d1061ab7b.png