opencv_ground_truth.cpp

#include <opencv2/opencv.hpp>
#include <iostream>
#include <string>

int main(int argc, char** argv) {
    // Check if input path is provided
    if (argc < 2) {
        std::cerr << "Usage: " << argv[0] << " <input_image_path>" << std::endl;
        return -1;
    }
    
    // Get input path from command line argument
    std::string inputPath = argv[1];
    
    // Load image
    cv::Mat src = cv::imread(inputPath, cv::IMREAD_GRAYSCALE);
    if (src.empty()) {
        std::cerr << "Error: Could not load image from " << inputPath << std::endl;
        return -1;
    }

    // Create temporary image for processing
    cv::Mat tmp;
    
    // Perform erosion with kernel size 5
    cv::Mat kernel = cv::getStructuringElement(cv::MORPH_RECT, cv::Size(5, 5));
    cv::erode(src, tmp, kernel);
    // Perform dilation with kernel size 5
    cv::dilate(tmp, tmp, kernel);
    
    // Generate output filename by adding suffix to input filename
    std::string outputPath = inputPath.substr(0, inputPath.find_last_of('.')) + "-opencv-processed.png";
    
    // Save the processed image
    cv::imwrite(outputPath, tmp);
    
    std::cout << "Processing completed! Output saved to: " << outputPath << std::endl;
    return 0;
}