Digital watermark embedding method, digital watermark embedding apparatus, and storage medium storing a digital watermark embedding program
    135.
    发明授权
    Digital watermark embedding method, digital watermark embedding apparatus, and storage medium storing a digital watermark embedding program 有权
    数字水印嵌入方法,数字水印嵌入装置和存储数字水印嵌入程序的存储介质

    公开(公告)号:US07860270B2

    公开(公告)日:2010-12-28

    申请号:US12590806

    申请日:2009-11-13

    Abstract: A method for embedding a watermark into digital data by independently changing real and imaginary number components of the coefficient values of a complex watermark coefficient matrix using a key, performing a discrete Fourier inverse transform on the sequence matrix of the changed watermark and generating a watermark pattern, adding like tiling the water mark pattern to the original image, and generating an embedded image. A watermark detection method includes separating a block from an arbitrary position on the detected object image, performing a discrete Fourier transform on the block and obtaining a sequence matrix, generating position information for a component which is to be detected and is specified by the key, detecting a position marker sequence by calculating a phase difference of a sequence by a parallel displacement, for the position information, extracting offset information, and detecting the embedded watermark from the detected object image.

    Abstract translation: 一种用于通过使用密钥独立地改变复数水印系数矩阵的系数值的实数和虚数分量来将水印嵌入数字数据的方法,对改变的水印的序列矩阵执行离散付里叶逆变换并产生水印图案 添加像平铺水印图案到原始图像,并生成嵌入图像。 一种水印检测方法,包括从检测对象图像上的任意位置分离块,在块上执行离散付里叶变换并获得序列矩阵,生成要被检测并由密钥指定的分量的位置信息, 通过平行位移计算序列的相位差,对所述位置信息,提取偏移信息以及从检测到的对象图像中检测嵌入的水印来检测位置标记序列。

    COLOR IMAGE OR VIDEO PROCESSING
    137.
    发明申请
    COLOR IMAGE OR VIDEO PROCESSING 有权
    彩色图像或视频处理

    公开(公告)号:US20100310164A1

    公开(公告)日:2010-12-09

    申请号:US12755149

    申请日:2010-04-06

    Abstract: The present invention relates generally to color image processing. One claim recites a method of color masking an image or video including: reading color values of an image sample of the image or video and a corresponding change of an attribute of the image sample; and based on the color values of the image sample, and using a programmed electronic processor, mapping the change in the image sample attribute to a change in color components of the image sample that is equivalent to the change in the image sample attribute, yet reduces visibility of the change in the image sample attribute for the specific color values of the image sample. Another claim recites a method including: obtaining data representing digital imagery or video; analyzing at least a portion of the data to determine one or more color characteristics associated with the at least a portion of the data, said act of analyzing yielding a result; based at least in part on the result, generating a key; and using a programmed electronic processor, embedding auxiliary data in the data representing digital imagery or video using the key. Of course other claims and combinations are provided as well.

    Abstract translation: 本发明一般涉及彩色图像处理。 一个权利要求描述了对图像或视频进行颜色掩蔽的方法,包括:读取图像或视频的图像样本的颜色值和图像样本的属性的相应变化; 并且基于图像样本的颜色值,并且使用编程的电子处理器,将图像样本属性中的变化映射到与图像样本属性的变化相当的图像样本的颜色分量的变化,但是减少 对图像样本的特定颜色值的图像样本属性的变化的可见性。 另一项声明提出了一种方法,包括:获取表示数字图像或视频的数据; 分析所述数据的至少一部分以确定与所述数据的所述至少一部分相关联的一个或多个颜色特性,所述分析动作产生结果; 至少部分地基于结果,产生密钥; 并使用编程的电子处理器,使用密钥将辅助数据嵌入到表示数字图像或视频的数据中。 当然,也提供其他权利要求和组合。

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