A new image transform for a more crop-resilient NPT

Author

Ahmed, Ayman M T ; Day, Dwight D.

Author_Institution

Dept. of Data Reception & Anal., Nat. Authority of Remote Sensing & Space Sci., Cairo, Egypt

fYear

2009

fDate

7-9 June 2009

Firstpage

378

Lastpage

382

Abstract

In this paper, a new two-dimensional transform (crop-resilient image transform) is introduced. The transform is based on the Hartley transform, where the kernel matrix is modified to meet the requirements of the crop-resilient transform. This transform can be utilized in many applications; however, in this paper the main focus is on the data hiding and cropping applications only. Experimental results in this paper emphasize: the capability of the crop-resilient transform to invisibly hide a digital signature into a host data, and the robustness of the hidden data against the cropping attack.

Keywords

Hartley transforms; data encapsulation; digital signatures; image coding; watermarking; 2D transform; Hartley transform; NPT; crop resilient image transform; cropping attack; data cropping; data hiding; digital signature; kernel matrix; naturalness preserving transform; Content addressable storage; Data encapsulation; Digital signatures; Discrete Fourier transforms; Discrete transforms; Fourier transforms; Frequency; Kernel; Remote sensing; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Electro/Information Technology, 2009. eit '09. IEEE International Conference on

Conference_Location

Windsor, ON

Print_ISBN

978-1-4244-3354-4

Electronic_ISBN

978-1-4244-3355-1

Type

conf

DOI

10.1109/EIT.2009.5189646

Filename

5189646