Image encryption apparatus and image decryption apparatus
    31.
    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:US08374349B2

    公开(公告)日:2013-02-12

    申请号:US12393381

    申请日:2009-02-26

    IPC分类号: G06F21/00

    CPC分类号: G09C5/00

    摘要: In an image encryption apparatus, an input processor inputs data of an input image. An encryptor encrypts a part or whole of the data of the input image. A marker generator generates data of a marker indicating an encrypted area. An image saver saves data of a marker-covered image covered with the marker. A marker sticker sticks the marker. An output processor outputs an encrypted image. In an image decryption apparatus, an input processor inputs data of an input image. A marker detector detects a marker and identifies an encrypted area. A decryptor decrypts data in the encrypted area. An image restorer restores data in an area covered with the marker by sticking data of a marker-covered image. An output processor outputs data of a decrypted image.

    摘要翻译: 在图像加密装置中,输入处理器输入输入图像的数据。 加密器加密输入图像的一部分或全部数据。 标记生成器生成指示加密区域的标记的数据。 图像保护程序保存用标记覆盖的标记覆盖图像的数据。 标记贴纸粘贴标记。 输出处理器输出加密图像。 在图像解密装置中,输入处理器输入输入图像的数据。 标记检测器检测标记并识别加密区域。 解密器解密加密区域中的数据。 图像恢复器通过粘贴标记覆盖图像的数据来恢复覆盖有标记的区域中的数据。 输出处理器输出解密图像的数据。

    IMAGE PROCESSING SYSTEM, IMAGE PROCESSING APPARATUS, AND IMAGE PROCESSING METHOD
    32.
    发明申请
    IMAGE PROCESSING SYSTEM, IMAGE PROCESSING APPARATUS, AND IMAGE PROCESSING METHOD 有权
    图像处理系统,图像处理设备和图像处理方法

    公开(公告)号:US20110249300A1

    公开(公告)日:2011-10-13

    申请号:US13164851

    申请日:2011-06-21

    IPC分类号: G06T5/00

    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。

    DEVICE, METHOD, AND PROGRAM FOR IMAGE ENCRYPTION/DECRYPTION
    33.
    发明申请
    DEVICE, METHOD, AND PROGRAM FOR IMAGE ENCRYPTION/DECRYPTION 有权
    图像加密/解码的设备,方法和程序

    公开(公告)号:US20090262931A1

    公开(公告)日:2009-10-22

    申请号:US12425977

    申请日:2009-04-17

    IPC分类号: G09C5/00

    CPC分类号: G09C5/00 H04N1/4486

    摘要: In order to encrypt a part of an input image in such a manner that the encrypted part can be located for decryption, means for regularly converting pixel values in the area to be encrypted and generating a pattern unique to the pixel value conversion in order to encrypt the area to be encrypted; means for setting a specified positioning marker for locating an encryption position at two or more of the four corners of the area to be encrypted; and means for setting one or more checking marks for verifying appropriateness of a decrypted image in the encrypted area before the decryption are included.

    摘要翻译: 为了加密输入图像的一部分,使得加密部分可以被定位用于解密,用于定期转换要加密的区域中的像素值并产生像素值转换唯一的图案的装置,以加密 要加密的区域; 用于设置指定的定位标记的装置,用于在要加密的区域的四个角中的两个或更多个角处定位加密位置; 以及用于设置用于验证解密之前的加密区域中的解密图像的适当性的一个或多个检验标记的装置。

    IMAGE ENCRYPTION APPARATUS AND IMAGE DECRYPTION APPARATUS
    35.
    发明申请
    IMAGE ENCRYPTION APPARATUS AND IMAGE DECRYPTION APPARATUS 有权
    图像加密装置和图像分解装置

    公开(公告)号:US20090245513A1

    公开(公告)日:2009-10-01

    申请号:US12411606

    申请日:2009-03-26

    IPC分类号: H04L9/06

    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。

    Image decrypting apparatus, image encrypting apparatus, and image decrypting method
    36.
    发明申请
    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:US20090220076A1

    公开(公告)日:2009-09-03

    申请号:US12232901

    申请日:2008-09-25

    IPC分类号: G09C5/00 G06K9/00

    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 ENCRYPTION/DECRYPTION SYSTEM
    38.
    发明申请
    IMAGE ENCRYPTION/DECRYPTION SYSTEM 审中-公开
    图像加密/分解系统

    公开(公告)号:US20080298596A1

    公开(公告)日:2008-12-04

    申请号:US11755278

    申请日:2007-05-30

    IPC分类号: H04L9/08 H04L9/14

    摘要: When decrypting an image of a part of a document that is encrypted and therefore illegible, a user uses a decryption apparatus 15 to read the document as an electronic image and also to receive a user authentication by accessing a key management server 11. Then, the user transmits a management number obtained from the image to the key management server 11 from the decryption apparatus 15. The key management server 11 extracts position information of the portion of the document that is encrypted and a decryption key for decrypting this portion from a key management database 13 and transmits the decryption key to the decryption apparatus 15. The decryption apparatus 15 processes the electronic image by using the position information and decryption key received from the key management server 11 so as to decrypt the encrypted part so that it is legible.

    摘要翻译: 当解密加密的文档的一部分的图像并且因此难以辨认时,用户使用解密装置15将文档读取为电子图像,并且还通过访问密钥管理服务器11来接收用户认证。然后, 用户从解密装置15向密钥管理服务器11发送从图像获得的管理号码。密钥管理服务器11从密钥管理部分提取加密的文件的部分的位置信息和用于解密该部分的解密密钥 数据库13并将解密密钥发送到解密装置15.解密装置15通过使用从密钥管理服务器11接收到的位置信息和解密密钥来处理电子图像,以便对加密部分进行解密,从而使其清晰。

    Image processing apparatus, image processing method, and computer product
    39.
    发明申请
    Image processing apparatus, image processing method, and computer product 有权
    图像处理装置,图像处理方法和计算机产品

    公开(公告)号:US20080037898A1

    公开(公告)日:2008-02-14

    申请号:US11641862

    申请日:2006-12-20

    IPC分类号: G06K9/40

    CPC分类号: H04N1/4092

    摘要: An image processing apparatus includes a target-area setting unit that sets, in image data, an area around a target pixel as a target area, and an overshoot-undershoot suppressing unit that corrects a pixel value of the target pixel in the image data after processing based on pixel values of pixels in the target area.

    摘要翻译: 一种图像处理装置,包括:目标区域设定单元,其将图像数据中的目标像素周围的区域设定为目标区域;以及过冲下冲抑制单元,其对图像数据中的目标像素的像素值进行修正, 基于目标区域中的像素的像素值的处理。

    Image processing apparatus, image processing method, and computer product
    40.
    发明授权
    Image processing apparatus, image processing method, and computer product 有权
    图像处理装置,图像处理方法和计算机产品

    公开(公告)号:US07848591B2

    公开(公告)日:2010-12-07

    申请号:US11641862

    申请日:2006-12-20

    IPC分类号: G06K9/40

    CPC分类号: H04N1/4092

    摘要: An image processing apparatus includes a target-area setting unit that sets, in image data, an area around a target pixel as a target area, and an overshoot-undershoot suppressing unit that corrects a pixel value of the target pixel in the image data after processing based on pixel values of pixels in the target area.

    摘要翻译: 一种图像处理装置,包括:目标区域设定单元,其将图像数据中的目标像素周围的区域设定为目标区域;以及过冲下冲抑制单元,其对图像数据中的目标像素的像素值进行修正, 基于目标区域中的像素的像素值的处理。