|Table of Contents|

Improved Watermarking Detection Algorithm Based on LinearBrightness Adjustment of Remote Sensing Image(PDF)

南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2014年03期
Page:
52-
Research Field:
Publishing date:

Info

Title:
Improved Watermarking Detection Algorithm Based on LinearBrightness Adjustment of Remote Sensing Image
Author(s):
Ren Na; Zhu Changqing; Tong Deyu
MOE Key Laboratory of Virtual Geographic Environment,Nanjing Normal University,Nanjing 210023,China
Keywords:
remote sensing image; watermarking detection; linear characteristics; brightness adjustment
PACS:
P237.3
DOI:
-
Abstract:
During the process of research about watermark algorithm for remote sensing image,more attentions have been paid to those kinds of attacking on image such as geometric transformations,compression,noise,etc.On the other hand,the investigation on watermarking algorithms for anti-attacking brightness adjustment is still rare.Adjusting the brightness will not affect the spatial characteristics of remote sensing image,but will destroy the synchronism of watermarking information embedded in remote sensing image,and result in the detection failure of watermarking.Therefore,it brings new challenges to the watermarking algorithms of remote sensing images.In this paper,an improved watermark detecting algorithm is proposed with the requirements of protection for remote sensing images.Firstly,the linear characteristics of brightness adjustment are described.Then the principles of changing in two parameters of mapping mechanism based algorithm with brightness adjustment are analyzed.In consequence,the watermark detecting algorithm based on linear characteristics of parameters and mapping mechanism is deduced.Finally,the experiments are given to verify the performance of the improved watermark detecting algorithm.The experimental results show that the proposed algorithm can anti-attack the common attacking on images,and offer good robustness for attacking from brightness adjustment.

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Last Update: 2014-09-30