...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Multimedia Tools and Applications >High payload image steganography with minimum distortion based on absolute moment block truncation coding
【24h】

High payload image steganography with minimum distortion based on absolute moment block truncation coding

机译：基于绝对矩块截断编码的最小失真的高有效载荷图像隐写术

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper presents an improved image steganography scheme based on absolute moment block truncation coding (AMBTC). The purpose of the proposed scheme is to achieve high payload, good visual quality and low computation complexity at the same time. In the scheme, a threshold is predefined to classify the blocks of the AMBTC-compressed codes as smooth or complex blocks, in which data are then embedded. For the smooth blocks, the bit planes of them are used to embed the data. Later, the two quantization levels in the smooth block are re-calculated to minimize the distortion in image quality. For the complex blocks, a proportion of secret bits are concealed by exchanging the order of two quantization levels with together toggling the bit plane, by which the payload can be increased without any distortion. Furthermore, the proposed scheme inherits the advantages of the AMBTC method, such as pleasing image quality, ease to be implemented and low computational complexity. With adjustable threshold, the application of the proposed scheme becomes flexible, that means different thresholds can be used for different applications. Experimental results and analysis demonstrate the effectiveness and superiority of the proposed scheme.
机译：本文提出了一种改进的基于绝对矩块截断编码（AMBTC）的图像隐写方案。提出的方案的目的是同时实现高有效载荷，良好的视觉质量和较低的计算复杂度。在该方案中，预定义了阈值以将AMBTC压缩代码的块分类为平滑块或复杂块，然后在其中嵌入数据。对于平滑块，它们的位平面用于嵌入数据。之后，重新计算平滑块中的两个量化级别，以最大程度地减小图像质量的失真。对于复杂块，通过交换两个量化级的顺序并一起翻转位平面来隐藏一部分秘密位，由此可以增加有效载荷而不会产生任何失真。此外，所提出的方案继承了AMBTC方法的优点，例如令人愉悦的图像质量，易于实现和低计算复杂度。通过可调节的阈值，所提出方案的应用变得灵活，这意味着可以将不同的阈值用于不同的应用。实验结果和分析证明了该方案的有效性和优越性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号