add sample

samples/CMakeLists.txt

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+# cmake needs this line
+cmake_minimum_required(VERSION 3.1)
+
+# Define project name
+project(opencv_example_project)
+
+# Find OpenCV, you may need to set OpenCV_DIR variable
+# to the absolute path to the directory containing OpenCVConfig.cmake file
+# via the command line or GUI
+#find_package(OpenCV REQUIRED)
+
+set(acl_lib "/usr/local/Ascend/ascend-toolkit/latest/acllib/lib64/stub/")
+set(acl_lib "/usr/local/Ascend/ascend-toolkit/latest/fwkacllib/lib64/stub/")
+link_directories(${acl_lib})
+
+set(acl_inc "/usr/local/Ascend/ascend-toolkit/latest/acllib/include/")
+set(acl_inc "/usr/local/Ascend/ascend-toolkit/latest/fwkacllib/include/")
+include_directories(${acl_inc})
+
+set(cv_inc "/home/perfxlab4/include/opencv4")
+include_directories(${cv_inc})
+
+set(cv_lib "/home/perfxlab4/lib")
+link_directories(${cv_lib})
+
+set(cv_libs "opencv_core" "opencv_acl" "opencv_imgproc" "opencv_highgui" "opencv_imgcodecs")
+
+set(ACL_LIBRARIES "ascendcl" "stdc++" "acl_op_compiler")
+
+# If the package has been found, several variables will
+# be set, you can find the full list with descriptions
+# in the OpenCVConfig.cmake file.
+# Print some message showing some of them
+message(STATUS "OpenCV library status:")
+message(STATUS "    config: ${OpenCV_DIR}")
+message(STATUS "    version: ${OpenCV_VERSION}")
+message(STATUS "    libraries: ${OpenCV_LIBS}")
+message(STATUS "    include path: ${OpenCV_INCLUDE_DIRS}")
+
+# Declare the executable target built from your sources
+add_executable(opencv_example example.cpp)
+
+# Link your application with OpenCV libraries
+target_link_libraries(opencv_example PRIVATE ${OpenCV_LIBS} ${ACL_LIBRARIES} ${cv_libs})

samples/README_CN.md

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+# Opencv ACL模块简单使用示例<a name="ZH-CN_TOPIC_0302083215"></a>
+
+## 功能描述<a name="section1421916179418"></a>
+
+主要演示了aclMat类的简单使用,用acl模块中的merge和split算子对图片进行操作
+
+## 步骤说明
+1. 在acl模块安装完成后，修改CMakeLists.txt文件中acl_inc,acl_lib,cv_inc,cv_lib的路径
+2. 在samples目录下创建build目录: mkdir build 
+3. 进入build目录: cd build
+4. 运行cmake: cmake ..
+5: 编译: make 
+6: 运行可执行文件opencv_example
+
+
+

samples/acl.json

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+{}

samples/example.cpp

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+#include "opencv2/core.hpp"
+#include "opencv2/imgcodecs.hpp"
+#include "opencv2/imgproc.hpp"
+#include "opencv2/highgui.hpp"
+#include "opencv2/acl/acl.hpp"
+#include "acl/acl.h"
+#include <iostream>
+
+using namespace cv;
+using namespace cv::acl;
+using namespace std;
+
+
+int main()
+{
+    // 初始化
+    aclCxt *acl_context_0 = set_device("../acl.json", 1, 2);
+
+    Mat src = imread("../cat1.jpg");
+    if (src.empty()) {
+        cerr << "could not image !" << endl;
+        return -1;
+    }
+
+    // 上传数据到aclMat对象中
+    aclMat acl_src(src, acl_context_0); 
+    aclMat acl_dest1;
+    aclMat acl_dest2;
+    aclMat acl_dest3;
+
+    vector<aclMat> mv;
+    mv.emplace_back(acl_dest1);
+    mv.emplace_back(acl_dest2);
+    mv.emplace_back(acl_dest3);
+
+
+    imshow("src", src);
+    split(acl_src, mv);
+
+    //下载aclMat数据到Mat类中 
+    Mat dest1 = mv.data()[0].operator cv::Mat();
+    Mat dest2 = mv.data()[1].operator cv::Mat();
+    Mat dest3 = mv.data()[2].operator cv::Mat();
+
+    imshow("dest1", dest1);
+    imshow("dest2", dest2);
+    imshow("dest3", dest3);
+
+    aclMat acl_imgdest; 
+
+    merge(mv, acl_imgdest);
+    Mat imgdest = acl_imgdest.operator cv::Mat(); 
+    imshow("imgdest", imgdest);
+
+    // 去初始化
+    release_device(acl_context_0);    
+	waitKey(0);
+
+    return 0;
+}
+