Local Negative Base Transform and Image Scrambling

Figure 2

Restoring scrambled images by the minimum transformation period: (a) is an original images of size 512×512; (b) is the scrambled images of (a) using 22 times of LNBT to shuffle the pixels along x- and y-direction separately; (c) is the restored image using 490 times of LNBT to permute the pixels along x- and y-direction separately from (b).

(a)

(b)

(c)