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    IMAGE MARKER ATTACHING APPARATUS AND METHOD
    3.
    发明申请
    IMAGE MARKER ATTACHING APPARATUS AND METHOD 有权
    图像标记附件和方法

    公开(公告)号：US20100158383A1

    公开(公告)日：2010-06-24

    申请号：US12637256

    申请日：2009-12-14

    申请人： Kensuke KURAKI ,  Shohei Nakagata ,  Jun Takahashi ,  Taizo Anan

    发明人： Kensuke KURAKI ,  Shohei Nakagata ,  Jun Takahashi ,  Taizo Anan

    IPC分类号： G06K9/46

    CPC分类号： G06T11/60 ,  G06K7/1439 ,  G09C5/00

    摘要： A marker attaching apparatus attaches to an image a positioning marker for detecting a specific area in the image, and includes: an area size detection unit detecting a size of an area to which the positioning marker is attached; a marker adjustment unit adjusting the positioning marker depending on the detected size of the area; and a marker attaching unit attaching the adjusted positioning marker to the image.

    摘要翻译： 标记附着装置将图像附着到用于检测图像中的特定区域的定位标记，并且包括：区域尺寸检测单元，其检测定位标记附着的区域的大小; 标记调整单元，根据检测到的区域大小调整定位标记; 以及将调整后的定位标记附着到图像上的标记附着单元。

    IMAGE ENCRYPTION APPARATUS AND IMAGE DECRYPTION APPARATUS
    4.
    发明申请
    IMAGE ENCRYPTION APPARATUS AND IMAGE DECRYPTION APPARATUS 审中-公开
    图像加密装置和图像分解装置

    公开(公告)号：US20090214033A1

    公开(公告)日：2009-08-27

    申请号：US12338218

    申请日：2008-12-18

    申请人： Shohei Nakagata ,  Taizo Anan ,  Kensuke Kuraki ,  Jun Takahashi

    发明人： Shohei Nakagata ,  Taizo Anan ,  Kensuke Kuraki ,  Jun Takahashi

    IPC分类号： H04L9/14 ,  H04L9/00 ,  H04L9/16

    CPC分类号： H04N1/4486 ,  G09C5/00 ,  H04L9/088 ,  H04N1/4413 ,  H04N1/4426

    摘要： Area data indicating an encryption area of image data and level data indicating an authority level for the encryption area are received. Upon being triggered by an input password, an encryption key is generated for each received authority level. Check data to be detected in verifying whether or not the encrypted image data in the encryption area is appropriately decrypted through decryption is implanted in the encryption area. Image encryption is performed on the encryption area where the check data is implanted, by using the encryption key corresponding to the authority level designated for the encryption area. In decryption, all decryption keys corresponding to all authority levels lower than or equal to the set authority level are used to decrypt each encryption area and determines whether or not an appropriate decryption has been performed on the basis of the result of the detection of the check data.

    摘要翻译： 接收表示图像数据的加密区域和指示加密区域的权限级别的级数据的区域数据。 由输入密码触发时，会为每个接收到的权限级别生成加密密钥。 在验证加密区域中的加密图像数据是否通过解密适当地解密时，检查要检测的数据被植入加密区域。 通过使用与为加密区域指定的授权级别相对应的加密密钥，在植入了检查数据的加密区域上执行图像加密。 在解密中，使用与所设置的权限级别以下的所有权限级别相对应的所有解密密钥来解密每个加密区域，并根据检查结果确定是否已经执行了适当的解密 数据。

    Marker placement device, marker placement detecting device, and computer readable storage medium for storing marker placement program
    7.
    发明授权
    Marker placement device, marker placement detecting device, and computer readable storage medium for storing marker placement program 有权
    标记放置装置，标记放置检测装置和用于存储标记放置程序的计算机可读存储介质

    公开(公告)号：US08818015B2

    公开(公告)日：2014-08-26

    申请号：US13010342

    申请日：2011-01-20

    申请人： Shohei Nakagata ,  Kensuke Kuraki ,  Jun Takahashi ,  Taizo Anan

    发明人： Shohei Nakagata ,  Kensuke Kuraki ,  Jun Takahashi ,  Taizo Anan

    IPC分类号： G06K9/00 ,  G09C5/00

    CPC分类号： G09C5/00 ,  H04N1/32352 ,  H04N1/4486

    摘要： A marker placement device includes, a marker placement method decision section that decides, for every predetermined pitch from a starting edge of a side to an end edge of the side, a placement position of a marker for detecting a position within a rectangular image region, the placement position being along the side of the image region within an image. A marker adding section that adds the marker to the image according to the placement position decided is provided, where, when a gap shorter than the pitch remains between the end edge and the decided placement position closest to the end edge of the side, the marker placement method decision section decides a first marker placement position closest to the starting edge, and decides a subsequent marker placement position.

    摘要翻译： 标记放置装置包括：标记放置方法判定部，其从所述一侧的一侧的起始边缘到所述一侧的端部边缘的每个预定间距判定用于检测矩形图像区域内的位置的标记的放置位置， 放置位置沿着图像内的图像区域的侧面。 提供了一种标记添加部分，其根据所确定的放置位置将标记添加到图像中，其中当在端边缘和最靠近侧边的端边缘的确定的放置位置之间保持短于间距的间隙时，标记 放置方法决定部决定最靠近起始边缘的第一标记放置位置，并且决定随后的标记放置位置。

    Electronic watermark embedding device, electronic watermark detecting device, and programs therefor
    8.
    发明授权
    Electronic watermark embedding device, electronic watermark detecting device, and programs therefor 有权
    电子水印嵌入装置，电子水印检测装置及其程序

    公开(公告)号：US08588460B2

    公开(公告)日：2013-11-19

    申请号：US12659079

    申请日：2010-02-24

    申请人： Jun Takahashi ,  Kensuke Kuraki ,  Taizo Anan

    发明人： Jun Takahashi ,  Kensuke Kuraki ,  Taizo Anan

    IPC分类号： G06K9/00 ,  G06K9/46 ,  G06K9/32 ,  G06K9/48

    CPC分类号： G06K9/48 ,  G06T1/0064 ,  G06T2201/0051 ,  G06T2201/0062 ,  H04N1/32203 ,  H04N1/32219 ,  H04N1/32235 ,  H04N1/32251 ,  H04N1/32261 ,  H04N1/32309

    摘要： An electronic watermark embedding device that embeds a graphic pattern representing information in image data includes a signaling feature period changing unit configured to change a period of signaling feature of a graphic pattern, a graphic pattern embedding unit configured to embed the graphic pattern in the image data as a period of the signaling feature changed by the signaling feature period changing unit, and an embedment region detecting unit configured to detect an embedding position where the graphic pattern is embedded from a region of the image data other than a background, whereby the signaling feature period changing unit changes the period of the signaling feature while maintaining the signaling feature when the image data undergo image enlargement or reduction processing, and the graphic pattern embedding unit embeds the graphic pattern in the embedding position on the region of the image data other than the background.

    摘要翻译： 将表示信息的图形图形嵌入图像数据中的电子水印嵌入装置包括：信号特征周期改变单元，被配置为改变图形信号的信号特征的周期;图形模式嵌入单元，被配置为将图形图形嵌入图像数据中 作为由信令特征周期改变单元改变的信令特征的周期，以及嵌入区域检测单元，被配置为从除了背景之外的图像数据的区域中检测嵌入图形图案的嵌入位置，由此信令特征 当图像数据进行图像放大或缩小处理时，周期改变单元改变信令特征的周期，同时维持信令特征，并且图形模式嵌入单元将图形模式嵌入图像数据的除了 背景。

    IMAGE DECRYPTION APPARATUS AND IMAGE DECRYPTION METHOD
    9.
    发明申请
    IMAGE DECRYPTION APPARATUS AND IMAGE DECRYPTION METHOD 审中-公开
    图像分解装置和图像分解方法

    公开(公告)号：US20120328095A1

    公开(公告)日：2012-12-27

    申请号：US13605285

    申请日：2012-09-06

    申请人： Jun Takahashi ,  Shohei Nakagata ,  Kensuke Kuraki ,  Taizo Anan

    发明人： Jun Takahashi ,  Shohei Nakagata ,  Kensuke Kuraki ,  Taizo Anan

    IPC分类号： G06F21/24

    CPC分类号： G09C5/00 ,  H04N1/4486

    摘要： An image decryption apparatus includes: an interface unit that acquires an encrypted image; and a processor adapted to: specify a block not presenting unevenness in brightness and a block presenting unevenness in brightness, among a plurality of first blocks into which the encrypted image is divided, and generate a decrypted image by moving each pixel of the encrypted image, in accordance with a predetermined rule; select, from among the second blocks located near the block of interest in a plurality of second blocks into which the decrypted image is divided, at least one second block that is included in the block not presenting unevenness in brightness on the encrypted image prior to generation of the decrypted image, as a reference value calculation block; and correcting the value of each pixel included in the block of interest, using the values of pixels included in the reference value calculation block.

    摘要翻译： 一种图像解密装置，包括：获取加密图像的接口单元; 以及处理器，其适于：在加密图像被分割的多个第一块之中，指定不呈现亮度不均匀的块和呈现亮度不均匀的块，并且通过移动加密图像的每个像素来生成解密图像， 根据预定规则; 从位于解密图像被分割的多个第二块中的感兴趣块附近的第二块中选择包括在生成之前在加密图像上不呈现亮度不均匀的块中的至少一个第二块 的解密图像作为参考值计算块; 以及使用包括在参考值计算块中的像素的值来校正包括在感兴趣块中的每个像素的值。

    Image encryption apparatus and image decryption apparatus
    10.
    发明授权
    Image encryption apparatus and image decryption apparatus 有权
    图像加密装置和图像解密装置

    公开(公告)号：US08306221B2

    公开(公告)日：2012-11-06

    申请号：US12411606

    申请日：2009-03-26

    申请人： Jun Takahashi ,  Taizo Anan ,  Kensuke Kuraki ,  Shohei Nakagata

    发明人： Jun Takahashi ,  Taizo Anan ,  Kensuke Kuraki ,  Shohei Nakagata

    IPC分类号： G06F21/00

    CPC分类号： H04N1/4486

    摘要： In an image encryption apparatus for visually encrypting an input image, an encryption area selector selects an encryption area within an input image including an area to be encrypted. An image converter divides the encryption area into a plurality of blocks. The image converter divides each block of the encryption area into a plurality of sub-blocks. An image converter performs an image conversion including rotation and mirror-reverse in accordance with an encryption key on the image in each sub-block. The image converter scrambles the image on a block-by-block basis in accordance with the encryption key. A pixel value converter converts a pixel value of a minimal area in a block so that a position of the block may be detected.

    摘要翻译： 在用于视觉上加密输入图像的图像加密装置中，加密区域选择器选择包括要加密的区域的输入图像内的加密区域。 图像转换器将加密区域划分成多个块。 图像转换器将加密区域的每个块划分成多个子块。 图像转换器根据每个子块中的图像上的加密密钥执行包括旋转和镜像反转的图像转换。 图像转换器根据加密密钥逐块地对图像进行加扰。 像素值转换器转换块中的最小区域的像素值，使得可以检测块的位置。