Table 3.

CNN3.

Layer	Size	Number of channels	Activation function
Conv2d	3 × 3	32	Relu
Max_Pooling2d	2 × 2
Conv2d	3 × 3	64	Relu
Max_Pooling2d	2 × 2
Dropout (0.25)
Flatten
Dense	128		Relu
Dropout (0.5)
Dense	12		Softmax