Digital watermark embedding apparatus and method
    1.
    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

    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
    2.
    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

    IPC分类号: H04N1/409

    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
    3.
    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

    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
    4.
    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

    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。

    DIGITAL WATERMARK EMBEDDING APPARATUS, DIGITAL WATERMARK EMBEDDING METHOD, AND DIGITAL WATERMARK DETECTION APPARATUS
    7.
    发明申请
    DIGITAL WATERMARK EMBEDDING APPARATUS, DIGITAL WATERMARK EMBEDDING METHOD, AND DIGITAL WATERMARK DETECTION APPARATUS 有权
    数字水印嵌入式设备,数字水印嵌入方法和数字水印检测设备

    公开(公告)号:US20120163653A1

    公开(公告)日:2012-06-28

    申请号:US13331220

    申请日:2011-12-20

    IPC分类号: G06K9/00

    摘要: A digital watermark embedding apparatus includes an interface unit which acquires video data and digital watermark information, and a processing unit which embeds the digital watermark information into the video data. The processing unit is adapted to cause the area of a watermark pattern formed by a plurality of pixels having a prescribed value, and superimposed on each image contained in the video data, to vary in periodic fashion over time according to the value of a symbol contained in the digital watermark information, and correct, using the prescribed value, the value of each pixel contained in a region where each image in the video data and the watermark pattern corresponding to that image overlap each other.

    摘要翻译: 数字水印嵌入装置包括:获取视频数据和数字水印信息的接口单元;以及将数字水印信息嵌入到视频数据中的处理单元。 处理单元适于使由具有规定值的多个像素形成的水印图案的区域,并且叠加在视频数据中包含的每个图像上,根据包含的符号的值,以周期性方式随时间变化 在数字水印信息中,并且使用规定值来校正包含在视频数据中的每个图像和与该图像相对应的水印图案的区域中的每个像素的值彼此重叠。

    IMAGE MARKER ATTACHING APPARATUS AND METHOD
    8.
    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

    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
    9.
    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

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

    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。