Local Negative Base Transform and Image Scrambling

Figure 4

Image scrambling along x- and y-direction separately: (a) original image of size 216×256; (e) original image of size 256×256; (b), (c), and (d) scrambled images from (a) by once, 9 times and 25 times of LNBT, respectively; (f), (g), and (h) from (e) by once, 9 times, and 25 times of LNBT, respectively.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)