公开(公告)号：US08718409B2

公开(公告)日：2014-05-06

申请号：US12914409

申请日：2010-10-28

申请人： Junichi Hayashi ,  Nobuhiro Tagashira ,  Kazuya Kishi ,  Yasuhiro Nakamoto ,  Yoshiharu Imamoto ,  Jun Tamaru

发明人： Junichi Hayashi ,  Nobuhiro Tagashira ,  Kazuya Kishi ,  Yasuhiro Nakamoto ,  Yoshiharu Imamoto ,  Jun Tamaru

IPC分类号： G06K9/60 ,  G06K9/36

CPC分类号： G06K9/4652 ,  G06K9/4661 ,  G06K2009/00583

摘要： In verification of image data of a captured image as to whether it is original one, the verification is possible even for image data subjected to a peripheral illumination correction or an exposure correction. An order information calculation unit selects a pixel set including two or more pixels based on pixel values and information on an image space of image data of a captured image, and calculates an order of magnitude between pixels in the selected pixel set. A verification data producing unit generates verification data used in verification of whether the image data has not been tampered with, based on the calculated order of magnitude. An image output unit outputs the image data and the verification data.

摘要翻译： 在验证拍摄图像的图像数据是否为原始图像数据时，即使对经过周边照明校正或曝光校正的图像数据也可进行验证。 订单信息计算单元基于像素值和关于拍摄图像的图像数据的图像空间的信息来选择包括两个或更多个像素的像素组，并且计算所选择的像素组中的像素之间的数量级。 验证数据产生单元基于所计算的数量级，生成用于验证图像数据是否未被篡改的验证数据。 图像输出单元输出图像数据和验证数据。

公开(公告)号：US08059895B2

公开(公告)日：2011-11-15

申请号：US12243344

申请日：2008-10-01

申请人： Jun Tamaru

发明人： Jun Tamaru

IPC分类号： G06K9/34

CPC分类号： H04N1/32203 ,  G06F17/214 ,  H04N1/32219 ,  H04N1/32261

摘要： An information embedding apparatus (100) which embeds information by changing the character spacing in a document image includes a discrimination unit (101) which discriminates a text area in the document image, a circumscribed rectangle extraction unit (102) which extracts the circumscribed rectangle of each character in the text area, a determination unit (103) which determines, based on the position and size of each extracted circumscribed rectangle, whether a portion having a character spacing smaller than a threshold exists, a reduction unit (104) which, for a character determined to have a character spacing smaller than the threshold, reduces the size of the character in at least the character arrangement direction, and a character position changing unit (105) which changes, in accordance with information to be embedded, the position of a character determined to have a character spacing equal to or larger than the threshold, and that of a character reduced.

摘要翻译： 通过改变文档图像中的字符间隔来嵌入信息的信息嵌入装置（100）包括区分文档图像中的文本区域的识别单元（101），提取外文矩形的外接矩形提取单元（102） 文本区域中的每个字符，确定单元（103），其基于每个提取的外接矩形的位置和大小来确定是否存在具有小于阈值的字符间隔的部分;缩小单元（104），用于 确定为具有小于阈值的字符间距的字符至少减小字符排列方向上的字符的大小，以及字符位置改变单元（105），其根据要嵌入的信息改变位置 被确定为具有等于或大于阈值的字符间隔的字符和字符的字符减小的字符。

公开(公告)号：US07260238B2

公开(公告)日：2007-08-21

申请号：US10727636

申请日：2003-12-05

申请人： Keiichi Iwamura ,  Kitahiro Kaneda ,  Jun Tamaru ,  Takami Eguchi

发明人： Keiichi Iwamura ,  Kitahiro Kaneda ,  Jun Tamaru ,  Takami Eguchi

IPC分类号： G06K9/00 ,  G06K9/34 ,  G06K15/00 ,  H04N1/40

CPC分类号： G06T1/0021 ,  G06T2201/0051 ,  G06T2201/0062

摘要： Distance d1 between the right edges of A1 and B2, and distance d2 between the right edges of A3 and B4 are calculated. If data to be embedded is 1, one or a combination of a process for increasing the size of B2 in the column direction or decreasing the size of B4 in the column and a process for moving the position of B2 toward B3 or moving the position of B4 toward B3 is executed to meet d1>d2. If data to be embedded is 0, one or a combination of a process for decreasing the size of B2 in the column direction or increasing the size of B4 in the column direction, and a process for moving the position of B2 toward B1 or moving the position of B4 toward B5 is executed to meet d1

摘要翻译： 计算A 1和B 2的右边缘之间的距离d 1，以及A 3和B 4的右边缘之间的距离d 2。 如果要嵌入的数据为1，则在列方向上增加B 2的大小或减小列中的B 4的大小的处理的一个或组合以及将B 2的位置移动到B 3的处理或 将B 4的位置向B 3移动，以满足d 1> d 2。 如果要嵌入的数据为0，则在列方向上减小B 2的大小或者增加列方向上的B 4的大小的处理的一个或组合，以及将B 2的位置移动到B的处理 1或将B 4的位置移向B 5，以满足d 1

公开(公告)号：US07190807B2

公开(公告)日：2007-03-13

申请号：US10385852

申请日：2003-03-12

申请人： Jun Tamaru ,  Keiichi Iwamura

发明人： Jun Tamaru ,  Keiichi Iwamura

IPC分类号： G06K9/00

CPC分类号： G06T1/005 ,  G06T2201/0051 ,  G06T2201/0062 ,  G06T2201/0065 ,  G06T2201/0083

摘要： The invention is to precisely extract a digital watermark from image data which are subjected to embedding of the digital watermark in a state of a binary image and are then converted into a multi-value image (gray scale image).For attaining the foregoing object, a digital watermark extracting apparatus for extracting a digital watermark for example in an original includes an acquiring unit for acquiring multi-value image data obtained by reading the original with a predetermined reading unit, a pre-processing unit for selecting one of plural threshold values and binarizing the multi-value image data with the selected threshold value, and an extracting unit for extracting the digital watermark from image data binarized in the pre-processing unit, wherein selection of the threshold value, binarization an extraction of the digital watermark are repeated to obtain an optimum extraction result of the digital watermark.

摘要翻译： 本发明是从二进制图像的状态中嵌入数字水印的图像数据精确地提取数字水印，然后转换为多值图像（灰度图像）。 为了实现上述目的，例如在原件中提取数字水印的数字水印提取装置包括：获取单元，用于获取通过以预定读取单元读取原稿而获得的多值图像数据;预处理单元，用于选择 多个阈值中的一个，并且利用所选择的阈值对多值图像数据进行二值化;以及提取单元，用于从预处理单元中二值化的图像数据中提取数字水印，其中选择阈值，二值化和提取 重复数字水印以获得数字水印的最佳提取结果。

公开(公告)号：US07599099B2

公开(公告)日：2009-10-06

申请号：US11419551

申请日：2006-05-22

申请人： Jun Tamaru

发明人： Jun Tamaru

IPC分类号： G06K9/00 ,  G06K9/18 ,  G06K15/00 ,  H04N1/40

CPC分类号： G06T1/0071 ,  G06T2201/0051 ,  H04N1/00838 ,  H04N1/00883

摘要： A copy-forgery-inhibited pattern image including added digital information is generated by an on-demand output of the pattern by a printer. An image processing apparatus for generating a copy-forgery-inhibited pattern image includes: a pattern storage section for storing a plurality of patterns that constitute a camouflage pattern image and that respectively represent specific bit values; an information input unit for inputting arbitrary information; and a camouflage pattern image structuring unit for receiving the information from the information input unit to represent a bit string of a binary representation of the information as an arrangement of a plurality of patterns. The image processing apparatus further includes a random number generation unit for generating a random number sequence; and a selection output unit for receiving the random number sequence from the unit and the information outputted from the information input unit to output, based on predetermined information, any one of them.

摘要翻译： 包括附加的数字信息的禁止伪造的图像图像通过打印机的图案的按需输出生成。 一种用于产生禁止复制伪造图案的图像处理装置，包括：图案存储部，用于存储构成伪装图案图像并分别表示特定位值的多个图案; 用于输入任意信息的信息输入单元; 以及伪装图案图像构造单元，用于从信息输入单元接收信息以表示作为多个图案的排列的信息的二进制表示的比特串。 图像处理装置还包括：随机数生成单元，生成随机数序列; 以及选择输出单元，用于从单元接收随机数序列和从信息输入单元输出的信息，以基于预定信息输出它们中的任何一个。

公开(公告)号：US07269274B2

公开(公告)日：2007-09-11

申请号：US10727637

申请日：2003-12-05

申请人： Keiichi Iwamura ,  Kitahiro Kaneda ,  Jun Tamaru ,  Takami Eguchi

发明人： Keiichi Iwamura ,  Kitahiro Kaneda ,  Jun Tamaru ,  Takami Eguchi

IPC分类号： G06K9/00 ,  G06K9/34 ,  G06K15/00

CPC分类号： G06T1/0021

摘要： An apparatus for embedding a digital watermark in a document image detects circumscribing outer shapes of characters in the document image and sets a plurality of reference lines that extend in the column direction and are spaced apart in the row direction by a basic pitch. The outer shapes include a first outer shape, a second outer shape that neighbors the first outer shape, and a third outer shape that neighbors the second outer shape, and the reference lines include a first reference line located between the first outer shape and the second outer shape, and a second reference line located between the second outer shape and the third outer shape. Control is performed for at least one of the second and third outer shapes so that a distance between the first reference line and an edge of the second outer shape is different from a distance between the second reference line and an edge of the third outer shape, in accordance with digital watermark information to be embedded.

摘要翻译： 用于在文件图像中嵌入数字水印的装置检测文档图像中的外部字符的外形，并且设置在列方向上延伸并以行方向间隔开的基准间距的多个参考线。 外形包括第一外形，邻近第一外形的第二外形和与第二外形相邻的第三外形，并且参考线包括位于第一外形和第二外形之间的第一参考线 以及位于第二外形和第三外形之间的第二参考线。 对第二外形和第三外形中的至少一个执行控制，使得第一参考线与第二外形的边缘之间的距离不同于第二参考线与第三外形的边缘之间的距离， 根据要嵌入的数字水印信息。

公开(公告)号：US20070127771A1

公开(公告)日：2007-06-07

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： G06K9/00

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。

公开(公告)号：US07616837B2

公开(公告)日：2009-11-10

申请号：US11561476

申请日：2006-11-20

申请人： Jun Tamaru

发明人： Jun Tamaru

IPC分类号： G06K9/32

CPC分类号： G03G21/046 ,  H04N1/00838 ,  H04N1/32203 ,  H04N1/32208 ,  H04N2201/3205 ,  H04N2201/327

摘要： A predetermined region set on a grayscale image is divided into rectangles each having a predetermined size (S706), and piled patterns which hold the accumulated values of pixel values at identical pixel positions upon piling up the divided rectangles is generated (S707). An alignment pattern is generated by calculating the logical sum of respective bit expression patterns (S708). A peak position which matches the alignment pattern on the piled patterns best is obtained (S710). The position of the predetermined region is corrected based on the peak position, and the predetermined region after correction is divided into rectangles each having the predetermined size (S711) Patterns in the divided rectangles are recognized (S712). Embedding information corresponding to each recognized pattern is specified (S713).

摘要翻译： 灰度级图像上设定的规定区域被分割成规定大小的矩形（S706），并且生成在堆积分割矩形时将像素值的累积值保持在相同像素位置的堆叠图案（S707）。 通过计算各个比特表达模式的逻辑和来生成对准模式（S708）。 获得与堆叠图案上的对准图案最匹配的峰值位置（S710）。 基于峰值位置来校正预定区域的位置，校正后的预定区域被划分为具有预定尺寸的矩形（S711）。识别分割矩形中的图案（S712）。 指定对应于每个识别的图案的嵌入信息（S713）。

公开(公告)号：US20090097750A1

公开(公告)日：2009-04-16

申请号：US12243344

申请日：2008-10-01

申请人： Jun Tamaru

发明人： Jun Tamaru

IPC分类号： G06K9/34

CPC分类号： H04N1/32203 ,  G06F17/214 ,  H04N1/32219 ,  H04N1/32261

摘要： An information embedding apparatus (100) which embeds information by changing the character spacing in a document image includes a discrimination unit (101) which discriminates a text area in the document image, a circumscribed rectangle extraction unit (102) which extracts the circumscribed rectangle of each character in the text area, a determination unit (103) which determines, based on the position and size of each extracted circumscribed rectangle, whether a portion having a character spacing smaller than a threshold exists, a reduction unit (104) which, for a character determined to have a character spacing smaller than the threshold, reduces the size of the character in at least the character arrangement direction, and a character position changing unit (105) which changes, in accordance with information to be embedded, the position of a character determined to have a character spacing equal to or larger than the threshold, and that of a character reduced.

摘要翻译： 通过改变文档图像中的字符间隔来嵌入信息的信息嵌入装置（100）包括区分文档图像中的文本区域的识别单元（101），提取外文矩形的外接矩形提取单元（102） 文本区域中的每个字符，确定单元（103），其基于每个提取的外接矩形的位置和大小来确定是否存在具有小于阈值的字符间隔的部分;缩小单元（104），用于 确定为具有小于阈值的字符间距的字符至少减小字符排列方向上的字符的大小，以及字符位置改变单元（105），其根据要嵌入的信息改变位置 被确定为具有等于或大于阈值的字符间隔的字符和字符的字符减小的字符。

公开(公告)号：US07106884B2

公开(公告)日：2006-09-12

申请号：US10351997

申请日：2003-01-28

申请人： Jun Tamaru

发明人： Jun Tamaru

IPC分类号： G06K9/00

CPC分类号： G06T1/005 ,  G06T2201/0051 ,  G06T2201/0062

摘要： This invention provides a digital watermark embedding apparatus for a document, which can eliminate unnaturalness that may be experienced upon laying out characters in a document when watermark information is embedded, while maintaining the robustness of a document itself and the information size to be embedded of a digital watermark. A document image is input from an image input unit (11), and watermark information is input from a watermark information input unit (15). A region division unit (12) divides the document image into regions, and a circumscribing rectangle extraction unit (13) sets circumscribing rectangles for characters and extracts them as character images. A punctuation mark determination unit (14) determines a punctuation mark from the character image. A watermark information embedding unit (16) embeds watermark information by digital watermarking that shifts character images other than the character image determined to be a punctuation mark.

摘要翻译： 本发明提供了一种用于文档的数字水印嵌入装置，其可以消除在嵌入水印信息时在文档中布置字符时可能遇到的不自然现象，同时保持文档本身的鲁棒性以及要嵌入文档的信息大小 数字水印。 从图像输入单元（11）输入文档图像，并且从水印信息输入单元（15）输入水印信息。 区域划分单元（12）将文档图像划分为区域，并且外接矩形提取单元（13）设置用于字符的外接矩形并将其提取为字符图像。 标点符号确定单元（14）从字符图像确定标点符号。 水印信息嵌入单元（16）通过数字水印嵌入水印信息，该水印信息将除被确定为标点符号的字符图像之外的字符图像移位。