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WATERMARK APPLIED IMAGE COMPRESSION APPARATUS AND WATERMARK APPLIED IMAGE COMPRESSION PROCESS

机译：水印应用的图像压缩设备和水印应用的图像压缩过程

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摘要

PPROBLEM TO BE SOLVED: To provide a watermark applied image compression apparatus capable of embedding a watermark and compressing efficiently for a reference image lighted standardly and photographed and a plurality of similar images photographed with changed light, and reducing degradation in image quality accompanied with watermarking and compression processing. PSOLUTION: The watermark applied image compression apparatus comprises a watermark embedding unit 1 for embedding an embedding information Ia into a references image A and outputting a reference image Aw containing a watermark, a watermark embedding unit 2 for embedding an embedding information Ib into a similar image Bi similar to the reference image A and outputting a similar image Biw containing a watermark, a subtractor 3 for subtracting the references image Aw containing the watermark from the similar image Biw containing the watermark, and outputting a difference image Biw-Aw, a compress unit 4 for encoding the references image Aw containing the watermark and outputting a compressed references image 5, and a compress unit 6 for encoding the difference image Biw-Aw and outputting a compressed difference image 7. PCOPYRIGHT: (C)2007,JPO&INPIT

机译：

要解决的问题：提供一种水印应用图像压缩设备，该设备能够嵌入水印并有效压缩标准照亮并拍摄的参考图像和多个相似图像（改变光后拍摄），并减少伴随图像质量下降的问题加上水印和压缩处理。

解决方案：应用水印的图像压缩设备包括：水印嵌入单元1，用于将嵌入信息Ia嵌入到参考图像A中，并输出包含水印的参考图像Aw;水印嵌入单元2，用于将嵌入信息Ib嵌入到其中。类似图像Bi与参考图像A相似，并输出包含水印的相似图像Biw，减法器3，用于从包含水印的相似图像Bij中减去包含水印的参考图像Aw，并输出差值图像Biw-Aw，压缩单元4，其对包含水印的参考图像Aw进行编码，并输出压缩的参考图像5;以及压缩单元6，其对差分图像Biw-Aw进行编码，并输出压缩的差分图像7。

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公开/公告号JP2006311233A

专利类型
公开/公告日2006-11-09

原文格式PDF
申请/专利权人 MITSUBISHI ELECTRIC CORP;
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申请/专利号JP20050131569
发明设计人 MURAKAMI ATSUMICHI;ITO HIROSHI;KIMURA TOMOHIRO;FUJII RYOSUKE;UMAKAI KOICHI;SUZUKI MITSUYOSHI;ASAI KOTARO;
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申请日2005-04-28
分类号H04N1/387;G06T1/00;H04N1/41;
国家 JP
入库时间 2022-08-21 21:54:16

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