The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Teknik penanda air digunakan secara meluas untuk melindungi dokumen rahsia. Dalam beberapa literatur yang berharga, kebanyakannya menumpukan pada penanda air data binari dengan menggunakan perbandingan imej asal dan imej tera air untuk mengekstrak tera air. Dalam makalah ini, algoritma penanda air yang cekap dibentangkan dengan dua lapisan tersembunyi untuk penanda air imej peringkat kelabu. Dalam lapisan pertama, maklumat utama ditemui berdasarkan konsep buku kod. Kemudian kunci rahsia disembunyikan lagi kepada imej tera air yang menggunakan penyulitan yang terdiri daripada pengedaran spatial dalam lapisan kedua. Simulasi menunjukkan bahawa maklumat penanda air tidak dapat dilihat secara persepsi dalam imej tera air. Selain itu, tera air aras kelabu boleh diekstrak dengan merujuk parameter utama dan bukannya imej asal, dan kualiti pengekstrakan adalah sangat baik.
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Salinan
Shih-Chang HSIA, I-Chang JOU, Shing-Ming HWANG, "A Gray Level Watermarking Algorithm Using Double Layer Hidden Approach" in IEICE TRANSACTIONS on Fundamentals,
vol. E85-A, no. 2, pp. 463-471, February 2002, doi: .
Abstract: Watermarking techniques are widely used to protect the secret document. In some valuable literatures, most of them concentrate on the binary data watermarking by using comparisons of an original image and a watermarked image to extract the watermark. In this paper, an efficient watermarking algorithm is presented with two-layer hidden for gray-level image watermarking. In the first layer, the key information is found based on the codebook concept. Then the secret key is further hidden to the watermarked image adopting the encryption consisting of spatial distribution in the second layer. The simulations demonstrate that the watermarking information is perceptually invisible in the watermarked image. Moreover, the gray-level watermark can be extracted by referring key parameters rather than the original image, and the extracting quality is very good.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/e85-a_2_463/_p
Salinan
@ARTICLE{e85-a_2_463,
author={Shih-Chang HSIA, I-Chang JOU, Shing-Ming HWANG, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={A Gray Level Watermarking Algorithm Using Double Layer Hidden Approach},
year={2002},
volume={E85-A},
number={2},
pages={463-471},
abstract={Watermarking techniques are widely used to protect the secret document. In some valuable literatures, most of them concentrate on the binary data watermarking by using comparisons of an original image and a watermarked image to extract the watermark. In this paper, an efficient watermarking algorithm is presented with two-layer hidden for gray-level image watermarking. In the first layer, the key information is found based on the codebook concept. Then the secret key is further hidden to the watermarked image adopting the encryption consisting of spatial distribution in the second layer. The simulations demonstrate that the watermarking information is perceptually invisible in the watermarked image. Moreover, the gray-level watermark can be extracted by referring key parameters rather than the original image, and the extracting quality is very good.},
keywords={},
doi={},
ISSN={},
month={February},}
Salinan
TY - JOUR
TI - A Gray Level Watermarking Algorithm Using Double Layer Hidden Approach
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 463
EP - 471
AU - Shih-Chang HSIA
AU - I-Chang JOU
AU - Shing-Ming HWANG
PY - 2002
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E85-A
IS - 2
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - February 2002
AB - Watermarking techniques are widely used to protect the secret document. In some valuable literatures, most of them concentrate on the binary data watermarking by using comparisons of an original image and a watermarked image to extract the watermark. In this paper, an efficient watermarking algorithm is presented with two-layer hidden for gray-level image watermarking. In the first layer, the key information is found based on the codebook concept. Then the secret key is further hidden to the watermarked image adopting the encryption consisting of spatial distribution in the second layer. The simulations demonstrate that the watermarking information is perceptually invisible in the watermarked image. Moreover, the gray-level watermark can be extracted by referring key parameters rather than the original image, and the extracting quality is very good.
ER -