Enhancing the Power of CNN Using Data Augmentation Techniques for Odia Handwritten Character Recognition

Table 7

Effect of Gaussian noise on performance by varying sigma (i.e., standard deviation).

Model	NITROHCSv1.0 Odia character database				ISI image Odia numeral database
	Original	Sigma = 4	Sigma = 8	Sigma = 10	Original	Sigma = 4	Sigma = 8	Sigma = 10
M1	97.76	97.96	97.98	98.07	97.00	97.60	97.29	97.60
M2	97.65	97.85	97.91	98.00	97.10	97.10	97.60	97.39
M3	97.76	97.91	98.91	98.09	97.39	97.20	97.29	97.79
M4	97.43	97.82	97.53	97.96	97.20	97.29	97.10	97.60
M5	97.83	98.02	98.80	98.07	97.10	97.39	97.39	97.29