DR. PALAK J AMIN, PHARM. D
Pharmacy in Edison, NJ
License number
New Jersey 28RI03434400
Category
Pharmacy
Type
Pharmacist
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Address
2210 Rte, Edison, NJ 08817
Phone
(732) 491-2022
Personal information
See more information about PALAK J AMIN at radaris.comName
Address
Phone
3304 Cricket Cir, Edison, NJ 08820
Professional information
Robust Hidden Data Extraction Method For Scaling Attacks
US Patent:
2006017, Aug 10, 2006
Filed:
Aug 10, 2005
Appl. No.:
11/200866
Inventors:
Koduvayur Subbalakshmi - Holmdel NJ, US
Palak Amin - Edison NJ, US
Palak Amin - Edison NJ, US
International Classification:
G06T 15/40
US Classification:
345421000
Abstract:
A product and process for extracting hidden data from a stego-image that has been subjected to scaling attacks are disclosed. The hidden data extraction method of the present invention retains the one-to-one mapping of the stego-image blocks to the corresponding blocks in the scaled image. When the stego-image is scaled down, the block size for extracting the hidden data is reduced proportionally. When the stego-image is scaled up, the block size for extracting the hidden data is increased proportionally. The total overall number of blocks of pixels to be examined is kept constant between the scaled image and the stego-image. The hidden data extraction method can be combined with any existing block-DCT based data hiding method to provide an overall method for dealing with scaling attacks. Both the extraction method and the combined method can be implemented in software and stored within a machine-readable medium.