31 namespace SourceXtractor {
41 auto variance_iter = pixel_variances.begin();
42 for (
auto value : pixel_values) {
43 auto variance = *variance_iter++;
46 total_variance += variance;
50 SeFloat gain = detection_frame_info.getGain();
52 total_variance += total_flux / gain;
55 auto flux_error =
sqrt(total_variance);
58 auto mag_error = 1.0857 * flux_error / total_flux;