Reversible Data Embedding Based on Prediction Approach for VQ and SMVQ Compressed Images

ASIA unversity > 資訊學院 > 資訊工程學系 > 期刊論文 > Item 310904400/6479

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: http://asiair.asia.edu.tw/ir/handle/310904400/6479

题名:	Reversible Data Embedding Based on Prediction Approach for VQ and SMVQ Compressed Images
作者:	Chang, C. C.;Lin, C. Y.
关键词:	Reversible data embedding;prediction;steganography
日期:	2006-12
上传时间:	2009-12-17 06:58:11 (UTC+0)
出版者:	Asia University
摘要:	Reversible steganography allows an original image that has gone through the embedding process to be completely restored after the extraction of the embedded data. In this paper, we propose a reversible scheme with a high embedding capacity for VQ compressed images. Our reversible method is based on a prediction strategy and takes advantage of the local characteristics of the image. Since the location map is usually a necessary part of a reversible scheme, two methods, shifting and relocating, are also proposed to reduce the size of the location map. As the experimental results show later, our method outperforms previous schemes in terms of embedding capacity and image quality. To be more specific, with low distortion, the embedding capacity of the proposed methods can be higher than one bit per index value.
關聯:	Fundamenta Informaticae 74(2/3): 189-207
显示于类别:	[資訊工程學系] 期刊論文

文件中的档案:

档案	描述	大小	格式	浏览次数
		0Kb	Unknown	550	检视/开启
310904400-6479.doc		52Kb	Microsoft Word	242	检视/开启

在ASIAIR中所有的数据项都受到原著作权保护.