EURASIP Journal on Image and Video Processing

Table 4 Identification results of NS, PS, and CS under various image and video formats.

From: Screenshot identification by analysis of directional inequality of interlaced video

	Out
	Proposed scheme			Lee's scheme[14]
	NS	SS	*Undetermined*	NS	SS
In
NS _JPEG	97.83	0.50	1.67	94.93	5.07
NS _BMP	97.90	0.60	1.50	94.91	5.09
NS _TIFF	98.20	0.33	1.47	94.93	5.07
PS _{MPEG- 2/JPEG}	16.60	83.00	0.40	25.91	74.09
PS _{MPEG- 2/BMP}	15.80	83.83	0.37	25.81	74.19
PS _{MPEG- 2/TIFF}	15.67	83.83	0.50	25.90	74.10
PS _{MPEG- 4/JPEG}	14.50	85.23	0.27	23.33	76.67
PS _{MPEG- 4/BMP}	14.10	85.60	0.30	23.14	76.86
PS _{MPEG- 4/TIFF}	14.50	85.23	0.27	23.33	76.67
PS_H.264/JPEG	16.97	82.47	0.57	25.09	74.91
PS _H.264/BMP	16.43	83.00	0.57	23.15	76.86
PS_H.264/TIFF	16.67	83.00	0.33	24.33	75.67
CS _{MPEG- 2/JPEG}	0.07	98.43	1.50	3.61	96.39
CS _{MPEG- 2/BMP}	0.03	98.47	1.50	3.61	96.39
CS _{MPEG- 2/TIFF}	0.07	98.43	1.50	3.51	96.49
CS _{MPEG- 4/JPEG}	0.53	98.53	0.93	5.16	94.84
CS _{MPEG- 4/BMP}	0.53	98.57	0.90	4.60	95.40
CS _{MPEG- 4/TIFF}	0.67	98.43	0.90	5.01	94.99
CS _H.264/JPEG	0.43	98.67	0.90	4.36	95.64
CS _H _.264/BMP	0.43	98.67	0.90	4.89	95.11
CS_H.264/TIFF	0.53	98.57	0.90	4.36	95.64

(A_α: α image-formatted A, B_α/_β: B with α video format and compressed by β image format, unit: %)

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