Fig. 6.
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Confusion matrix of morphological spiral arm classes (G: Grand-design, M: Multi-arm, F: Flocculent) from this work compared to literature classes for 43 galaxies. Literature classes are from Buta et al. (2015) or de Vaucouleurs et al. (1991), based on optical/infrared images. The values of each column sum up to 100%. We note that class S (smooth) is not available in the literature.
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