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Journal of Electrical and Computer Engineering
/
2012
/
Article
/
Fig 3
/
Research Article
A New Chaos-Based Image-Encryption and Compression Algorithm
Figure 3
Test image 1 (Lena.PGM) when
𝑥
(
1
)
=
0
.
1
2
3
4
5
,
𝛼
=
4
, key1 = 1234567890223344, and key2 = 0987654321001122, Thr = 30, PSNR = 28.1240.
(a)
Original image
(b)
One-level decomposition
(c)
Coded image
(d)
Reconstructed image