Files
allwpilib/tools/wpical/src/main/native/include/cameracalibration.hpp
2025-11-07 23:09:21 -08:00

53 lines
2.1 KiB
C++

// Copyright (c) FIRST and other WPILib contributors.
// Open Source Software; you can modify and/or share it under the terms of
// the WPILib BSD license file in the root directory of this project.
#pragma once
#include <fstream>
#include <string>
#include <vector>
#include <Eigen/Core>
#include "wpi/util/json.hpp"
namespace cameracalibration {
struct CameraModel {
Eigen::Matrix<double, 3, 3> intrinsic_matrix;
Eigen::Matrix<double, 8, 1> distortion_coefficients;
double avg_reprojection_error;
};
int calibrate(const std::string& input_video, CameraModel& camera_model,
float square_width, float marker_width, int board_width,
int board_height, bool show_debug_window);
int calibrate(const std::string& input_video, CameraModel& camera_model,
float square_width, float marker_width, int board_width,
int board_height, double imagerWidthPixels,
double imagerHeightPixels, bool show_debug_window);
int calibrate(const std::string& input_video, CameraModel& camera_model,
float square_width, int board_width, int board_height,
double imagerWidthPixels, double imagerHeightPixels,
bool show_debug_window);
static void dumpJson(CameraModel& camera_model,
const std::string& output_file_path) {
std::vector<double> camera_matrix(camera_model.intrinsic_matrix.data(),
camera_model.intrinsic_matrix.data() +
camera_model.intrinsic_matrix.size());
std::vector<double> distortion_coefficients(
camera_model.distortion_coefficients.data(),
camera_model.distortion_coefficients.data() +
camera_model.distortion_coefficients.size());
wpi::util::json result = {
{"camera_matrix", camera_matrix},
{"distortion_coefficients", distortion_coefficients},
{"avg_reprojection_error", camera_model.avg_reprojection_error}};
std::ofstream output_file(output_file_path);
output_file << result.dump(4) << std::endl;
output_file.close();
}
} // namespace cameracalibration