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

Table 4

Effect of rotation on performance, where r is the angle in degrees describing the amount of rotation.

Model	NITROHCSv1.0 Odia character database				ISI image Odia numeral database
	Original	r = 2	r = 5	r = 9	Original	r = 2	r = 5	r = 9
M1	97.76	98.02	97.98	97.98	97.00	97.60	97.60	98.00
M2	97.65	98.24	98.18	98.07	97.10	97.69	97.69	97.79
M3	97.76	97.93	98.11	98.44	97.39	97.60	97.69	97.79
M4	97.43	97.98	97.82	97.69	97.20	97.29	97.10	97.29
M5	97.83	98.13	98.38	98.13	97.10	97.50	97.60	96.69