Table 3.

Image size and storage per image at each preprocessing step

Preprocessing step	Image Size (per image)	Byte(s) (per image)
Original $s_1$	$1024\times 1024\times 3=3,145,728$	12,582,912
Grayscaled $s_2$	$1024\times 1024\times 1=1,048,576$	4,194,304
Histogram stretched ${\text{s}}_3$	$1024\times 1024\times 1=1,048,576$	4,194,304
Cropped $s_4$	$724\times 724\times 1=524,176$	2,096,704
Downsampled $s_5$	$128\times 128\times 1=16,384$	65,536