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Table 4 The recognition accuracy using different methods of feature extraction in SAE

From: A new method based on stacked auto-encoders to identify abnormal weather radar echo images

Method of feature extraction Recognition accuracy
None (original picture) 77.59%
Color 23.27%
Texture 23.71%
Color + texture 24.03%
Color + texture + shape 23.63%
Integral projection 95.15%