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Table 3 Comparison results of PSNR of LSB, OPAP, PVD, M-PVD and our scheme on various test images with embedding payload = 600 000 bits (2.28 bpp).

From: A Novel Image Data Hiding Scheme with Diamond Encoding

Test images

LSB

OPAP

PVD

M-PVD

Our scheme

Lenna

42.3

45.7

37.5

40.6

46.3

Airplane

42.4

45.3

37.4

40.4

46.7

Boat

42.3

45.4

37.0

40.2

46.3

Baboon

42.5

45.3

37.1

40.3

46.3

Barbara

42.4

45.6

37.7

40.5

46.2

Pepper

42.3

45.4

37.8

40.2

46.4

Tiffany

42.5

45.6

37.2

40.3

46.6

Zelda

42.4

45.4

37.1

40.5

46.2