二维码识别

#include <lockzhiner_vision_module/vision/code/code_detector.h>

lockzhiner_vision_module::vision::QRCodeDetector model;

auto results = model.Predict(input_mat);

#include <lockzhiner_vision_module/vision/utils/visualize.h>

lockzhiner_vision_module::vision::Visualize(input_image, output_image,
                                              results);

lockzhiner_vision_module::vision::QRCodeDetector model;

cv::VideoCapture cap;
// 设置摄像头获取帧的宽高
cap.set(cv::CAP_PROP_FRAME_WIDTH, 640);
cap.set(cv::CAP_PROP_FRAME_HEIGHT, 480);
cap.open(0);

// wihile循环中的以下代码用于捕获图像帧
cap >> input_mat;
if (input_mat.empty())
{
continue;
}

auto results = model.Predict(input_mat); 

#include <lockzhiner_vision_module/vision/code/code_detector.h>
#include <lockzhiner_vision_module/vision/utils/visualize.h>
#include <lockzhiner_vision_module/edit/edit.h>

#include <chrono>
#include <cstdlib>
#include <ctime>
#include <iostream>
#include <opencv2/opencv.hpp>

using namespace std::chrono;

lockzhiner_vision_module::vision::QRCodeDetector model;

int main()
{
  // 初始化 edit 模块
  lockzhiner_vision_module::edit::Edit edit;
  if (!edit.StartAndAcceptConnection())
  {
    std::cerr << "Error: Failed to start and accept connection." << std::endl;
    return EXIT_FAILURE;
  }
  std::cout << "Device connected successfully." << std::endl;

  cv::VideoCapture cap;
  // 设置摄像头获取帧的宽高
  cap.set(cv::CAP_PROP_FRAME_WIDTH, 640);
  cap.set(cv::CAP_PROP_FRAME_HEIGHT, 480);
  cap.open(0);

  if (!cap.isOpened())
  {
    std::cerr << "Error: Could not open camera." << std::endl;
    return EXIT_FAILURE;
  }

  cv::Mat input_mat;

  while (true)
  {
    int read_index = 0;
    int time_ms = 0;

    for (int i = 0; i < 30; i++)
    {
      high_resolution_clock::time_point start_time = high_resolution_clock::now();
      cap >> input_mat;
      if (input_mat.empty())
      {
        continue;
      }
      // 使用 model 对象的 Predict 方法对输入图像进行预测，获取二维码检测结果
      auto results = model.Predict(input_mat);

      high_resolution_clock::time_point end_time = high_resolution_clock::now();
      auto time_span = duration_cast<milliseconds>(end_time - start_time);
      time_ms += time_span.count();
      read_index += 1;

      cv::Mat output_image;
      // 调用 Visualize 函数对原始图像和检测结果进行可视化处理，并将结果存储在 output_image 中
      lockzhiner_vision_module::vision::Visualize(input_mat, output_image, results);
      edit.Print(output_image);
    }

    std::cout << "Frames per second: " << 1000.0 / time_ms * read_index << std::endl;
  }

  cap.release();
  return 0;
}

# CMake最低版本要求  
cmake_minimum_required(VERSION 3.10)  

project(test_qr_code_detector)

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

# 定义项目根目录路径
set(PROJECT_ROOT_PATH "${CMAKE_CURRENT_SOURCE_DIR}/../..")
message("PROJECT_ROOT_PATH = " ${PROJECT_ROOT_PATH})

include("${PROJECT_ROOT_PATH}/toolchains/arm-rockchip830-linux-uclibcgnueabihf.toolchain.cmake")

# 定义 OpenCV SDK 路径
set(OpenCV_ROOT_PATH "${PROJECT_ROOT_PATH}/third_party/opencv-mobile-4.10.0-lockzhiner-vision-module")
set(OpenCV_DIR "${OpenCV_ROOT_PATH}/lib/cmake/opencv4")
find_package(OpenCV REQUIRED)
set(OPENCV_LIBRARIES "${OpenCV_LIBS}")

# 定义 LockzhinerVisionModule SDK 路径
set(LockzhinerVisionModule_ROOT_PATH "${PROJECT_ROOT_PATH}/third_party/lockzhiner_vision_module_sdk")
set(LockzhinerVisionModule_DIR "${LockzhinerVisionModule_ROOT_PATH}/lib/cmake/lockzhiner_vision_module")
find_package(LockzhinerVisionModule REQUIRED)

# 定义 ZXing SDK 路径
set(ZXing_ROOT_PATH "${PROJECT_ROOT_PATH}/third_party/zxing-cpp-v2.2.1-lockzhiner-vision-module")
set(ZXing_DIR "${ZXing_ROOT_PATH}/lib/cmake/ZXing")
set(ZXing_INCLUDE_DIRS "${ZXing_ROOT_PATH}/include")
find_package(ZXing REQUIRED)
set(ZXing_LIBRARIES "${ZXing_LIBS}")

# 基本图像处理示例
add_executable(Test-qr_code-detector test_qr_code_detector.cc)
target_include_directories(Test-qr_code-detector PRIVATE
    ${ZXing_INCLUDE_DIRS}          
    ${LOCKZHINER_VISION_MODULE_INCLUDE_DIRS}
)
target_link_libraries(Test-qr_code-detector PRIVATE ${OPENCV_LIBRARIES} ${LOCKZHINER_VISION_MODULE_LIBRARIES} ${ZXing_LIBRARIES} )
install(
    TARGETS Test-qr_code-detector
    RUNTIME DESTINATION .  
)

# 进入Demo所在目录
cd /LockzhinerVisionModuleWorkSpace/LockzhinerVisionModule/Cpp_example/C06_test_qr_code_detector
# 创建编译目录
rm -rf build && mkdir build && cd build
# 配置交叉编译工具链
export TOOLCHAIN_ROOT_PATH="/LockzhinerVisionModuleWorkSpace/arm-rockchip830-linux-uclibcgnueabihf"
# 使用cmake配置项目
cmake ..
# 执行编译项目
make -j8 && make install

chmod 777 Test-qr_code-detector 
./Test-qr_code-detector