opencv可视化图片-----c++
#include <opencv2/opencv.hpp>
#include <opencv2/core.hpp>
#include <filesystem>
// 将数据类型转换为字符串
std::string opencvTool::type2str(int type)
{
std::string r;
uchar depth = type & CV_MAT_DEPTH_MASK;
uchar chans = 1 + (type >> CV_CN_SHIFT);
switch (depth)
{
case CV_8U: r = "8U"; break;
case CV_8S: r = "8S"; break;
case CV_16U: r = "16U"; break;
case CV_16S: r = "16S"; break;
case CV_32S: r = "32S"; break;
case CV_32F: r = "32F"; break;
case CV_64F: r = "64F"; break;
default: r = "User"; break;
}
r += "C";
r += (chans + '0'); //3 个颜色通道（C3）
return r;
}
bool opencvTool::showImage(std::string image_p)
{
cv::Mat image = cv::imread(image_p.c_str());
if (image.empty())
{
std::cout << "Error: empyt mat " << std::endl;
return false;
}
// 打印图像信息
std::cout << "Image size: " << image.cols << " x " << image.rows << std::endl;
std::cout << "Number of channels: " << image.channels() << std::endl; // 通道数
std::cout << "Data type: " << type2str(image.type()) << std::endl; // 自定义函数，用于将数据类型转换为字符串
cv::imshow("test", image);
cv::waitKey(0); //持续显示窗口
cv::destroyAllWindows(); //用于关闭所有由 OpenCV 创建的窗口
return true;
}
bool opencvTool::showImage(cv::Mat image)
{
if (image.empty())
{
std::cout << "Error: empty mat " << std::endl;
return false;
}
// 打印图像信息
std::cout << "Image size: " << image.cols << "x" << image.rows << std::endl;
std::cout << "Number of channels: " << image.channels() << std::endl; // 通道数
std::cout << "Data type: " << type2str(image.type()) << std::endl; // 自定义函数，用于将数据类型转换为字符串
// 显示图像
cv::imshow("test", image);
cv::waitKey(0); // 持续显示窗口
cv::destroyAllWindows(); // 用于关闭所有由 OpenCV 创建的窗口
return true;
}