Fig. 13

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Star-galaxy prediction for SourceExtractor. Left: the histogram of the predictions, colored by true class, shows a bias toward values of ≈0.5, indicating a lack of calibration. Right: star-galaxy classification performance of SourceExtractor as a function of source S/N. The figure shows a decrease in classification performance for sources with lower S/N, indicating that SourceExtractor struggles to classify these sources accurately.
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