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公开(公告)号:US07142689B2
公开(公告)日:2006-11-28
申请号:US09771983
申请日:2001-01-30
CPC分类号: G06T1/005 , G06K9/46 , G06T2201/0064 , G06T2201/0065 , H04N1/32149 , H04N1/32309 , H04N1/32352 , H04N2201/3233 , H04N2201/327
摘要: An image processing method is provided. This method comprises: a first information extraction step of extracting first information, including a registration signal used to correct the geometrical distortion of an image; a determination step of employing results obtained at the first information extraction step to determine whether second information is to be extracted from the image; a division step of dividing the image into at least one block; and a selection step of selecting the block. In this method, the first information and the second information are embedded in the image as invisible or less visible electronic watermarks, and are added to components of said image that are less easily discerned by a human's eyes. Further, the amount of said first information is smaller than the amount of said second information, and the first information is embedded more deeply in the image than is the second information.
摘要翻译: 提供了图像处理方法。 该方法包括:第一信息提取步骤,提取包括用于校正图像的几何失真的登记信号的第一信息; 确定步骤,使用在所述第一信息提取步骤中获得的结果来确定是否要从所述图像中提取第二信息; 将图像划分为至少一个块的划分步骤; 以及选择该块的选择步骤。 在该方法中,第一信息和第二信息被嵌入在图像中作为不可见或不太可见的电子水印,并且被添加到不容易被人眼睛识别的所述图像的组件中。 此外,所述第一信息的量小于所述第二信息的量,并且第一信息比第二信息更深地嵌入在图像中。
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公开(公告)号:US06826290B1
公开(公告)日:2004-11-30
申请号:US09688108
申请日:2000-10-16
IPC分类号: G06K900
CPC分类号: G06T1/0064 , G06T1/0028 , G06T2201/0065
摘要: To provide a variety of methods for extracting digital watermark information from an image as correctly as possible. For example, a first pattern arrangement and a second pattern arrangement which is different from the first pattern arrangement for use in a calculation for extracting the digital watermark information are provided. A state of an original image without the digital watermark information embedded is inferred, using a second pattern arrangement, and a reliability of the digital watermark information to be extracted in accordance with the state is determined. Or to decide the embedding position of the digital watermark information from the image data, the extracting start position is discriminated by detecting the positional information by multiple times at the different extracting start positions. Or to detect a geometrical distortion, a registration signal is embedded on the image.
摘要翻译: 提供从图像中尽可能正确地提取数字水印信息的各种方法。 例如,提供了与用于提取数字水印信息的计算中使用的第一图案配置不同的第一图案布置和第二图案布置。 推测出没有嵌入数字水印信息的原始图像的状态,使用第二图案排列,并且确定要根据状态提取的数字水印信息的可靠性。 或者为了从图像数据确定数字水印信息的嵌入位置,通过在不同的提取开始位置检测位置信息多次来判别提取开始位置。 或者为了检测几何失真,将注册信号嵌入在图像上。
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公开(公告)号:US06993148B1
公开(公告)日:2006-01-31
申请号:US09615577
申请日:2000-07-13
IPC分类号: G06K9/00
CPC分类号: G06T1/0064 , G06T1/0028 , G06T2201/0051 , G06T2201/0052 , G06T2201/0061
摘要: This invention reduces degradation in image quality and improves altered portion specifying accuracy in a digital watermark technology. For this purpose, an apparatus of this invention inputs image data and information such as a copyright holder name to be embedded in the image data (S1, S2). A mask pattern having a blue noise characteristic for intermediate- and high-frequency components is set at the image data start position, and pixel data at a target embedding position in the mask pattern is quantized (S5). The quantization error at this time corresponds to the bit information to be embedded at that position. This processing is repeatedly performed for the entire image (S6-S9).
摘要翻译: 本发明可降低图像质量的劣化,并且改善数字水印技术中的部分指定精度。 为此,本发明的装置输入要嵌入在图像数据中的图像数据和诸如版权持有者名称的信息(S 1,S 2)。 在图像数据开始位置设置具有中高频分量的蓝噪声特性的掩模图案,对掩模图案中的目标嵌入位置的像素数据进行量化(S 5)。 此时的量化误差对应于要嵌入该位置的位信息。 对整个图像重复执行该处理(S 6 -S 9)。
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4.
公开(公告)号:US06873711B1
公开(公告)日:2005-03-29
申请号:US09676949
申请日:2000-10-02
IPC分类号: H04N1/41 , G06T1/00 , H04N1/32 , H04N1/387 , H04N1/46 , G06K9/00 , G06K15/00 , H04N1/40 , H04N9/43
CPC分类号: G06T1/005 , G06T1/0028 , G06T2201/0065 , H04N1/00005 , H04N1/00037 , H04N1/32149 , H04N1/32229 , H04N1/32277 , H04N1/32309 , H04N2201/3233 , H04N2201/327 , H04N2201/33378
摘要: An image processing device is provided to efficiently embed digital watermark information in a gray scale image while suppressing deterioration in the image quality. The image processing device includes an input unit for inputting gray-scale image data in which each pixel is formed of one component. A converter converts the format of the gray-scale image data into color image data in which each pixel is formed of a plurality of components. An embedding unit embeds the digital watermark information in part of the components of the color image data obtained by the converter.
摘要翻译: 提供一种图像处理装置,用于在抑制图像质量劣化的同时,将灰度图像中的数字水印信息有效地嵌入。 图像处理装置包括用于输入其中每个像素由一个分量形成的灰度图像数据的输入单元。 A转换器将灰度图像数据的格式转换成其中每个像素由多个分量形成的彩色图像数据。 嵌入单元将数字水印信息嵌入由转换器获得的彩色图像数据的部分成分。
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5.
公开(公告)号:US20060033942A1
公开(公告)日:2006-02-16
申请号:US11251796
申请日:2005-10-18
CPC分类号: G03G21/046 , H04N1/00843 , H04N1/00848 , H04N1/00859 , H04N1/00875
摘要: An input step of inputting image information according to an image and a judgment step of judging, for each image data corresponding a predetermined-sized block area in the image information input in the input step, whether or not the image data is a part of a specific image are provided. Further, in the judgment step, the judgment is performed not to the entire image information input in the input step but to a part of the image information.
摘要翻译: 根据图像输入图像信息的输入步骤和判断步骤,对于在输入步骤中输入的图像信息中对应于预定大小的块区域的每个图像数据,判断图像数据是否为 提供了具体的图像。 此外,在判断步骤中,不执行输入步骤中输入的整个图像信息,而是对图像信息的一部分进行判断。
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6.
公开(公告)号:US07436551B2
公开(公告)日:2008-10-14
申请号:US11251796
申请日:2005-10-18
IPC分类号: G06K15/00
CPC分类号: G03G21/046 , H04N1/00843 , H04N1/00848 , H04N1/00859 , H04N1/00875
摘要: An input step of inputting image information according to an image and a judgment step of judging, for each image data corresponding a predetermined-sized block area in the image information input in the input step, whether or not the image data is a part of a specific image are provided. Further, in the judgment step, the judgment is performed not to the entire image information input in the input step but to a part of the image information.
摘要翻译: 根据图像输入图像信息的输入步骤和判断步骤,对于在输入步骤中输入的图像信息中对应于预定尺寸的块区域的每个图像数据,判断图像数据是否为 提供了具体的图像。 此外,在判断步骤中,不执行输入步骤中输入的整个图像信息,而是对图像信息的一部分进行判断。
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7.
公开(公告)号:US07006257B1
公开(公告)日:2006-02-28
申请号:US09713235
申请日:2000-11-16
IPC分类号: G01K15/00
CPC分类号: G03G21/046 , H04N1/00843 , H04N1/00848 , H04N1/00859 , H04N1/00875
摘要: An input step of inputting image information according to an image and a judgment step of judging, for each image data corresponding a predetermined-sized block area in the image information input in the input step, whether or not the image data is a part of a specific image are provided. Further, in the judgment step, the judgment is performed not to the entire image information input in the input step but to a part of the image information.
摘要翻译: 根据图像输入图像信息的输入步骤和判断步骤,对于输入步骤中输入的图像信息中对应于预定大小的块区域的每个图像数据,判断图像数据是否为 提供了具体的图像。 此外,在判断步骤中,不执行输入步骤中输入的整个图像信息,而是对图像信息的一部分进行判断。
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公开(公告)号:US06434253B1
公开(公告)日:2002-08-13
申请号:US09238570
申请日:1999-01-28
申请人: Junichi Hayashi , Keiichi Iwamura
发明人: Junichi Hayashi , Keiichi Iwamura
IPC分类号: G06K900
CPC分类号: H04N19/467 , G06T1/0035 , G06T2201/0052 , H04N1/32154 , H04N1/3216 , H04N1/32165 , H04N1/3217 , H04N1/32187 , H04N1/32277 , H04N2201/3233 , H04N2201/327 , H04N2201/328
摘要: It is an object of this invention to efficiently embed digital watermark information in the above image or audio data. In order to achieve this object, there is provided a data processing apparatus comprising input means for inputting digital data including at least one of image data and audio data, transforming means for transforming a data format of the digital data, compression means for compressing the digital data whose data format has been transformed by the transforming means, and embedding means for embedding digital watermark information in the digital data whose data format has been transformed by the transforming means, wherein the apparatus includes a plurality of image processing modes, compresses the digital data by using the transforming means and the compression means in a first mode, and embeds digital watermark information in the digital data by using the transforming means and the embedding means in a second mode.
摘要翻译: 本发明的目的是有效地将数字水印信息嵌入到上述图像或音频数据中。 为了实现该目的,提供了一种数据处理装置,包括用于输入包括图像数据和音频数据中的至少一个的数字数据的输入装置,用于变换数字数据的数据格式的变换装置,用于压缩数字数据的压缩装置 数据格式已由变换装置变换的数据,以及嵌入装置,用于将数字水印信息嵌入数据格式已被变换装置变换的数字数据中,其中,该装置包括多个图像处理模式,压缩数字数据 通过在第一模式中使用变换装置和压缩装置,并且在第二模式中通过使用变换装置和嵌入装置将数字水印信息嵌入数字数据。
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公开(公告)号:US07536026B2
公开(公告)日:2009-05-19
申请号:US11670205
申请日:2007-02-01
申请人: Kitahiro Kaneda , Keiichi Iwamura , Ken-ichi Ohta , Yoshihiro Ishida , Shinichi Kato , Junichi Hayashi , Jun Tamaru , Takami Eguchi
发明人: Kitahiro Kaneda , Keiichi Iwamura , Ken-ichi Ohta , Yoshihiro Ishida , Shinichi Kato , Junichi Hayashi , Jun Tamaru , Takami Eguchi
IPC分类号: H04K1/00
CPC分类号: G06T1/0028 , G06T2201/0051 , G06T2201/0061 , H04N1/32203 , H04N1/32208 , H04N1/32219 , H04N1/32251 , H04N1/32261 , H04N1/32299 , H04N1/32315 , H04N2201/3226 , H04N2201/3233
摘要: It is required to protect the copyrights and the like of partial images which form respective parts of an image obtained by reading an image, exchanged using a print as a medium, by an image scanner or the like. Input image data is divided into a plurality of image regions having different features, digital watermarks, which are embedded in the detected image regions by embedding methods corresponding to the features of the image regions, are extracted, and the availability of the input image is checked on the basis of the extracted digital watermarks.
摘要翻译: 需要通过图像扫描器等来保护通过读取使用打印作为介质进行交换的图像而获得的图像的相应部分的部分图像的版权等。 输入图像数据被分成具有不同特征的多个图像区域,提取嵌入在检测图像区域中的嵌入方法,通过嵌入与图像区域的特征相对应的方法,检查输入图像的可用性 在提取的数字水印的基础上。
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公开(公告)号:US06694040B2
公开(公告)日:2004-02-17
申请号:US09361806
申请日:1999-07-27
申请人: Junichi Hayashi , Keiichi Iwamura
发明人: Junichi Hayashi , Keiichi Iwamura
IPC分类号: G06K900
CPC分类号: G06T1/0028 , G06T2201/0052 , G06T2201/0202
摘要: This invention has as its object to provide a technique for embedding digital-watermark information in image data while minimizing deterioration of the original image quality. To this end, a data processing apparatus of this invention has input means for inputting image data consisting of a plurality of coefficients, and embedding means for embedding digital-watermark information in coefficients having values falling within a predetermined range of the input image data.
摘要翻译: 本发明的目的是提供一种将数字水印信息嵌入图像数据中的技术,同时最小化原始图像质量的劣化。 为此,本发明的数据处理装置具有用于输入由多个系数组成的图像数据的输入装置,以及用于将数字水印信息嵌入具有落入输入图像数据的预定范围内的值的系数的嵌入装置。
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