以下是一个使用OpenCV读取图片并使用GLFW渲染显示的示例代码:
#include <iostream>
#include <GLFW/glfw3.h>
#include <opencv2/opencv.hpp>
int main() {
// 初始化GLFW窗口
if (!glfwInit()) {
std::cerr << "无法初始化GLFW" << std::endl;
return -1;
}
GLFWwindow* window = glfwCreateWindow(800, 600, "OpenCV+GLFW", nullptr, nullptr);
if (!window) {
std::cerr << "无法创建窗口" << std::endl;
glfwTerminate();
return -1;
}
glfwMakeContextCurrent(window);
// 读取图片
cv::Mat image = cv::imread("path/to/your/image.jpg");
if (image.empty()) {
std::cerr << "无法读取图片" << std::endl;
glfwTerminate();
return -1;
}
// 图片转换为OpenGL纹理
GLuint textureID;
glGenTextures(1, &textureID);
glBindTexture(GL_TEXTURE_2D, textureID);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, image.cols, image.rows,
0, GL_BGR_EXT, GL_UNSIGNED_BYTE, image.data);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
glBindTexture(GL_TEXTURE_2D,NULL);
// 渲染循环
while (!glfwWindowShouldClose(window)) {
glClear(GL_COLOR_BUFFER_BIT);
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, textureID);
glBegin(GL_QUADS);
glTexCoord2f(0.0f, 0.0f); glVertex2f(-1.0f, -1.0f);
glTexCoord2f(1.0f, 0.0f); glVertex2f(1.0f, -1.0f);
glTexCoord2f(1.0f, 1.0f); glVertex2f(1.0f, 1.0f);
glTexCoord2f(0.0f, 1.0f); glVertex2d(-1.0, 1.00);
glEnd();
glfwSwapBuffers(window);
glfwPollEvents();
}
// 清理资源
glDeleteTextures(1, &textureID);
glfwTerminate();
return 0;
}
请确保你已经正确安装了OpenCV和GLFW,并将图片路径替换为你实际的图片路径。该示例中使用OpenGL纹理将图片绘制在窗口上。你可以根据自己的需要对窗口大小、渲染方式等进行调整。
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