Printing and scanning investigation for image counter forensics

EURASIP Journal on Image and Video Processing

Table 2 Descriptions and sizes of each data set used for training and validation

Data set name	Description	Size
Original	IFSTC data set after six manipulations	198,624
Xerox1	Images from IFSTC data set with manipulations after being printed and scanned on Xerox1	2142
Composite Printers	Combined set of images from each printer (balanced)	6426
Composite Full	Combined set of images from each printer plus original IFSTC images (balanced)	8568
Printer Identification	Printer identification and pristine images after being printed and scanned by all three printers	3213
JPEG Compression	IFSTC data set with JPEG compression (QF=80) on all images	198,624

Size refers to the number of 299 × 299 or 256 × 256 image blocks in each data set, which is then split in 75% training and 25% validation. X1 and X2 refer to Xerox1 and Xerox2 printers (Sect. 3.6), respectively. The labels refer to the labels used when training and evaluating on each data set