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    DOCUMENT DATA ENCRYPTION METHOD AND DOCUMENT DATA ENCRYPTION SYSTEM
    4.
    发明申请
    DOCUMENT DATA ENCRYPTION METHOD AND DOCUMENT DATA ENCRYPTION SYSTEM 审中-公开
    文件数据加密方法和文件数据加密系统

    公开(公告)号：US20100042828A1

    公开(公告)日：2010-02-18

    申请号：US12475780

    申请日：2009-06-01

    申请人： Motoo MASUI ,  Hideaki Ishii ,  Taizo Anan ,  Jun Takahashi ,  Kensuke Kuraki ,  Shohei Nakagata

    发明人： Motoo MASUI ,  Hideaki Ishii ,  Taizo Anan ,  Jun Takahashi ,  Kensuke Kuraki ,  Shohei Nakagata

    IPC分类号： H04L9/06 ,  H04L9/00

    CPC分类号： G09C5/00 ,  H04L9/0825 ,  H04L2209/76

    摘要： An encrypting device encrypts original document data by use of a password of an addressee, thereby generating encrypted document data. A decryption authority changing device, of which operating authority is held by the addressee, generates authority changing information M structured by encrypting the password of the addressee with a password of a proxy, and notifies a decrypting device of the information, of which the operating authority is held by the proxy. The decrypting device decrypts the password of the addressee by employing the password of the proxy, and decrypts the encrypted document data by use of the decrypted password of the addressee.

    摘要翻译： 加密设备通过使用收件人的密码加密原始文档数据，从而生成加密的文档数据。 解密权限变更装置，其操作权限由收件人持有，生成通过用代理的密码加密收件人的密码而构成的权限变更信息M，并向解密装置通知信息的操作权限 由代理人持有。 解密装置通过使用代理的密码来解密收件人的密码，并使用收件人的解密密码解密加密的文件数据。

    Image encryption and image decryption apparatus and method
    5.
    发明授权
    Image encryption and image decryption apparatus and method 有权
    图像加密和图像解密装置及方法

    公开(公告)号：US08588414B2

    公开(公告)日：2013-11-19

    申请号：US12626104

    申请日：2009-11-25

    申请人： Hideaki Ishii ,  Taizo Anan ,  Kensuke Kuraki ,  Shohei Nakagata

    发明人： Hideaki Ishii ,  Taizo Anan ,  Kensuke Kuraki ,  Shohei Nakagata

    IPC分类号： H04L29/06

    CPC分类号： H04N1/32144 ,  G09C5/00 ,  H04N1/32272 ,  H04N1/4486

    摘要： Input data is converted into an image, and in the input image, an encryption region that is a region in which the image is to be encrypted. Meanwhile, on the basis of an encryption key, encryption key-related information that is information related to the encryption key is generated, and the encryption key-related information is embedded into the image in the encryption region, to generate a first intermediate image. Next, the first intermediate image is converted on the basis of the encryption key, to generate a second intermediate image. Then, the pixel values of the second intermediate image are converted so that the position of the encryption region can be specified. As a result of the conversion, an encrypted image in which the part corresponding to the encryption region in the input image is generated.

    摘要翻译： 输入数据被转换为图像，并且在输入图像中，加密区域是图像要被加密的区域。 同时，基于加密密钥，生成与加密密钥相关的信息的加密密钥相关信息，并且将加密密钥相关信息嵌入到加密区域中的图像中，以生成第一中间图像。 接下来，基于加密密钥来转换第一中间图像，以生成第二中间图像。 然后，转换第二中间图像的像素值，使得可以指定加密区域的位置。 作为转换的结果，生成其中与输入图像中的加密区域相对应的部分被生成的加密图像。

    IMAGE ENCRYPTION AND IMAGE DECRYPTION APPARATUS AND METHOD
    6.
    发明申请
    IMAGE ENCRYPTION AND IMAGE DECRYPTION APPARATUS AND METHOD 有权
    图像加密和图像分解装置和方法

    公开(公告)号：US20100074443A1

    公开(公告)日：2010-03-25

    申请号：US12626104

    申请日：2009-11-25

    申请人： Hideaki ISHII ,  Taizo Anan ,  Kensuke Kuraki ,  Shohei Nakagata

    发明人： Hideaki ISHII ,  Taizo Anan ,  Kensuke Kuraki ,  Shohei Nakagata

    IPC分类号： H04N1/44 ,  H04L9/00

    CPC分类号： H04N1/32144 ,  G09C5/00 ,  H04N1/32272 ,  H04N1/4486

    摘要： Input data is converted into an image, and in the input image, an encryption region that is a region in which the image is to be encrypted. Meanwhile, on the basis of an encryption key, encryption key-related information that is information related to the encryption key is generated, and the encryption key-related information is embedded into the image in the encryption region, to generate a first intermediate image. Next, the first intermediate image is converted on the basis of the encryption key, to generate a second intermediate image. Then, the pixel values of the second intermediate image are converted so that the position of the encryption region can be specified. As a result of the conversion, an encrypted image in which the part corresponding to the encryption region in the input image is generated.

    摘要翻译： 输入数据被转换为图像，并且在输入图像中，加密区域是图像要被加密的区域。 同时，基于加密密钥，生成与加密密钥相关的信息的加密密钥相关信息，并且加密密钥相关信息被嵌入到加密区域中的图像中，以生成第一中间图像。 接下来，基于加密密钥来转换第一中间图像，以生成第二中间图像。 然后，转换第二中间图像的像素值，使得可以指定加密区域的位置。 作为转换的结果，生成其中与输入图像中的加密区域相对应的部分被生成的加密图像。

    Digital watermark embedding apparatus and method
    7.
    发明授权
    Digital watermark embedding apparatus and method 有权
    数字水印嵌入装置及方法

    公开(公告)号：US08861781B2

    公开(公告)日：2014-10-14

    申请号：US13476137

    申请日：2012-05-21

    申请人： Kensuke Kuraki ,  Shohei Nakagata ,  Taizo Anan

    发明人： Kensuke Kuraki ,  Shohei Nakagata ,  Taizo Anan

    IPC分类号： G06T1/00

    CPC分类号： G06T1/0085 ,  G06T2201/0051

    摘要： An apparatus includes: a generator which generates a first pattern including a plurality of pixels having a first value, with an area of the first pattern changing in a constant cycle, and, a phase of cyclical change of the area changing based on a value of a symbol included in an inputted digital watermark information; a generator which generates a second pattern including a plurality of pixels having a second value, with an area of the second pattern changing with a frequency characteristic that is different from the cycle of change of the area; and a unit which superimposes the first and the second pattern into each image area of images in time series constituting an inputted video image to correct a value of each pixel in an image area to which the first or the second pattern is superimposed according to the first and the second value.

    摘要翻译： 一种装置包括：发生器，其生成包括具有第一值的多个像素的第一图案，其中第一图案的区域以恒定周期改变，并且基于值的周期性变化的相位 包括在输入的数字水印信息中的符号; 发生器，其生成包括具有第二值的多个像素的第二图案，其中所述第二图案的区域以与所述区域的变化周期不同的频率特性改变; 以及将第一和第二图案叠加在构成输入视频图像的时间序列的图像的每个图像区域中的单元，以根据第一和第二图案校正重叠了第一或第二图案的图像区域中的每个像素的值 和第二个值。

    Image processing system, image processing apparatus, and image processing method
    8.
    发明授权
    Image processing system, image processing apparatus, and image processing method 有权
    图像处理系统，图像处理装置和图像处理方法

    公开(公告)号：US08339677B2

    公开(公告)日：2012-12-25

    申请号：US13164851

    申请日：2011-06-21

    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： H04N1/409

    CPC分类号： G09C5/00 ,  G06T5/006 ,  G06T5/30 ,  G06T2207/10008 ,  G06T2207/20036 ,  H04L9/00

    摘要： An image processing system includes: an image input unit which reads an image printed on a medium and generates electronic data representing the image; and a processing unit which corrects the image represented by the electronic data. The processing unit implements the functions of: detecting, from the image represented by the electronic data, a first pattern having a first size and shape that is attached to the image; measuring a degree of degradation by measuring an amount of displacement of the size of the detected first pattern from the first size; and correcting the image represented by the electronic data to reduce the degree of degradation.

    摘要翻译： 一种图像处理系统，包括：图像输入单元，读取打印在介质上的图像，并生成表示图像的电子数据; 以及处理单元，其校正由电子数据表示的图像。 处理单元实现以下功能：从由电子数据表示的图像中检测具有附接到图像的第一尺寸和形状的第一图案; 通过从所述第一尺寸测量检测到的第一图案的尺寸的位移量来测量劣化程度; 并且校正由电子数据表示的图像以降低劣化程度。

    Image decrypting apparatus, image encrypting apparatus, and image decrypting method
    9.
    发明授权
    Image decrypting apparatus, image encrypting apparatus, and image decrypting method 有权
    图像解密装置，图像加密装置和图像解密方法

    公开(公告)号：US08170208B2

    公开(公告)日：2012-05-01

    申请号：US12232901

    申请日：2008-09-25

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

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

    IPC分类号： G06F21/00 ,  G09C5/00

    CPC分类号： H04N1/44

    摘要： When a decrypting apparatus receives an encrypted image, the apparatus detects the state of the encrypted image and determines whether the encrypted image is an image passed through only a digital medium or an analog medium, according to the state of the encrypted image. When the encrypted image is determined to be the image passed through only the digital medium, the decrypting apparatus switches to perform a digital decryption process and, when the encrypted image is determined to be the image passed through the analog medium, the decrypting apparatus switches to perform an analog decryption process.

    摘要翻译： 当解密装置接收加密图像时，根据加密图像的状态，该装置检测加密图像的状态，并根据加密图像的状态确定加密图像是仅通过数字媒体或模拟媒体的图像。 当加密图像被确定为仅通过数字媒体的图像时，解密装置切换到执行数字解密处理，并且当加密图像被确定为通过模拟媒体的图像时，解密装置切换到 执行模拟解密过程。

    IMAGE PROCESSING DEVICE, METHOD THEREOF, AND A COMPUTER READABLE NON TRANSITORY STORAGE MEDIUM STORING AN IMAGE PROCESSING PROGRAM
    10.
    发明申请
    IMAGE PROCESSING DEVICE, METHOD THEREOF, AND A COMPUTER READABLE NON TRANSITORY STORAGE MEDIUM STORING AN IMAGE PROCESSING PROGRAM 审中-公开
    图像处理装置，其方法和计算机可读非存储介质存储图像处理程序

    公开(公告)号：US20110317935A1

    公开(公告)日：2011-12-29

    申请号：US13104599

    申请日：2011-05-10

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

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

    IPC分类号： G06K9/40

    CPC分类号： G06K9/6278 ,  G09C5/00

    摘要： An image processing device includes, a block division unit configured to divide at least a part of an area of an input image into a plurality of blocks; a block classification unit configured to classify each block in the input image into a white block and a black block based on a variance of luminance values in a white block that typically includes white pixels and a variance of luminance values in a black block that includes at least black pixels among white pixels and black pixels; and a luminance correction unit configured to correct a luminance value of each pixel in a black block in the input image based on an average luminance value of pixels in one or more white blocks in the vicinity of the black block.

    摘要翻译： 图像处理装置包括：块分割单元，被配置为将输入图像的区域的至少一部分划分成多个块; 块分类单元，被配置为基于通常包括白色像素的白色块中的亮度值的方差和黑色块中的亮度值的方差，将输入图像中的每个块分类为白​​色块和黑色块，黑色块 白色像素和黑色像素之间的最小黑色像素; 以及亮度校正单元，被配置为基于黑色块附近的一个或多个白色块中的像素的平均亮度值来校正输入图像中的黑色块中的每个像素的亮度值。