Image Forming Apparatus, Image Forming Method, and Recording Medium

    公开(公告)号:US20180268743A1

    公开(公告)日:2018-09-20

    申请号:US15921678

    申请日:2018-03-15

    发明人: Tetsuya Matsusaka

    摘要: An image forming apparatus includes an encryption processing unit, a storage unit, a decryption processing unit, a decryption processing unit, and an image output unit. The encryption processing unit encrypts non-compressed image data that is not compressed and indicates a raw image as a target of the forming to generate encrypted image data. The storage unit stores the generated encrypted image data. The decryption processing unit decrypts the stored encrypted image data to restore the non-compressed image data. The image output unit forms the print image on the print medium using the non-compressed image data to output a printed matter. The image forming apparatus regards and processes the encrypted image data as the non-compressed image data to generate encryption confirmation image data indicating an encryption confirmation image, so as to associate and then display the encryption confirmation image with the printed matter using the encryption confirmation image data.

    Method for inserting, in the fourier domain, a digital watermark in an image and corresponding method for detecting a digital watermark in an image to be analyzed
    5.
    发明授权
    Method for inserting, in the fourier domain, a digital watermark in an image and corresponding method for detecting a digital watermark in an image to be analyzed 有权
    在傅立叶域中插入图像中的数字水印的方法和用于检测要分析的图像中的数字水印的相应方法

    公开(公告)号:US09401002B2

    公开(公告)日:2016-07-26

    申请号:US14378502

    申请日:2013-02-12

    IPC分类号: G06K9/00 G06T1/00 H04N1/32

    摘要: A method is provided for inserting a digital watermark in an image by an insertion device. Inserting includes: applying a Fourier transform to the image, delivering a 2D Fourier spectrum; inserting the watermark in the Fourier spectrum delivering a modified Fourier spectrum; and applying an inverse Fourier transform to the modified Fourier spectrum delivering a watermarked image. The watermark includes a set of watermarking coefficients each associated with a distinct determined position of a given quadrant among the quadrants of the Fourier domain, the spectral coordinates u and v of which, measured along the two axes of coordinates of the given quadrant and starting from the continuous component and expressed in percentage of the dimensions U and V of the given quadrant, are such that: u>66%×U and v>66%×V. The set of positions associated with the watermarking coefficients defines a convex pattern in the given quadrant.

    摘要翻译: 提供了一种通过插入装置将数字水印插入到图像中的方法。 插入包括:对图像应用傅里叶变换,传送2D傅里叶谱; 在提供修改的傅立叶频谱的傅立叶频谱中插入水印; 以及将逆傅立叶变换应用于递送水印图像的经修改的傅立叶频谱。 水印包括一组水印系数,每个水印系数与傅立叶域的象限中的给定象限的不同确定位置相关联,其分布坐标u和v沿着给定象限的两个坐标轴测量,并从 连续分量并以给定象限的尺寸U和V的百分比表示,使得:u> 66%×U且v> 66%×V。 与水印系数相关联的位置集合定义给定象限中的凸形图案。

    System and method for producing color shifting or gloss effect and recording medium with color shifting or gloss effect
    6.
    发明授权
    System and method for producing color shifting or gloss effect and recording medium with color shifting or gloss effect 有权
    用于产生色移或光泽效果的系统和方法以及具有色偏或光泽效果的记录介质

    公开(公告)号:US09319557B2

    公开(公告)日:2016-04-19

    申请号:US14030062

    申请日:2013-09-18

    申请人: Xerox Corporation

    摘要: An ultraviolet image pattern is created on a recording medium having florescence properties and being a first color by electronically creating a first electronic pattern ink, the first electronic pattern ink including a second color and including holes, the holes representing areas in the first electronic pattern ink wherein the second color is absent; electronically creating an electronic image region having a pattern; electronically painting, using the first electronic pattern ink, a background of the electronic image region and the pattern of the electronic image region; electronically painting a predetermined portion of the holes with a third color, the third color matching the first color of the recording medium; and rendering, using marking materials, the electronic image region on the recording medium such that the florescence properties of the recording medium are only visible through the holes not painted with the third color when viewing the recording medium using ultraviolet illumination.

    摘要翻译: 通过电子地形成第一电子图案油墨,在具有荧光特性的记录介质上形成紫外图像图案,并且通过电子地形成第一电子图案油墨,该第一电子图案油墨包括第二颜色并且包括孔,该孔表示第一电子图案油墨中的区域 其中第二种颜色不存在; 电子地创建具有图案的电子图像区域; 电子绘画,使用第一电子图案墨水,电子图像区域的背景和电子图像区域的图案; 以第三颜色电子绘制孔的预定部分,第三颜色与记录介质的第一颜色相匹配; 以及使用标记材料在记录介质上渲染电子图像区域,使得当使用紫外线照射观看记录介质时,记录介质的荧光特性仅在没有涂上第三种颜色的孔中可见。

    Real time correlation mark images for low memory devices
    8.
    发明授权
    Real time correlation mark images for low memory devices 有权
    低存储器件的实时相关标记图像

    公开(公告)号:US09264575B1

    公开(公告)日:2016-02-16

    申请号:US14717548

    申请日:2015-05-20

    申请人: Xerox Corporation

    发明人: Edward N. Chapman

    IPC分类号: H04N1/40 H04N1/32

    摘要: Methods and systems for providing real time correlation mark images and/or gloss marks. A new font can be created with respect to a prior font, wherein the new font includes a wider foreground than that of the prior font while maintaining the spatial frequency associated with the prior font (one time per font). The new font is then modified to include an inverted modified font by inverting each glyph one time per font and providing an image having the new font. The image is then written and the current color associated with the image is set to white (or to knockout). An operation is then implemented to write on top of the image using the new font.

    摘要翻译: 用于提供实时相关标记图像和/或光泽标记的方法和系统。 可以创建相对于先前字体的新字体,其中新字体包括比现有字体的前景更宽的前景,同时保持与先前字体相关联的空间频率(每个字体一次)。 然后通过将每个字形反转每个字形并提供具有新字体的图像,然后修改新字体以包括反转的修改字体。 然后写入图像,并将与图像相关联的当前颜色设置为白色(或敲除)。 然后使用新的字体实现操作以在图像的顶部写入。

    Trusted Evidence Cameras and Related Methods and Computer Program Products
    9.
    发明申请
    Trusted Evidence Cameras and Related Methods and Computer Program Products 有权
    可信证据相机及相关方法和计算机程序产品

    公开(公告)号:US20150296096A1

    公开(公告)日:2015-10-15

    申请号:US14746914

    申请日:2015-06-23

    IPC分类号: H04N1/32 G06T1/00

    摘要: Digital Cameras configured to verify authenticity of digital photos taken with the digital camera and related methods and computer program products are provided. GPS information associated with a photograph taken with the digital camera is obtained. A checksum of pixels that make up the photograph and the obtained GPS information is generated. The generated checksum is encrypted using a private key associated with the digital camera so as to allow verification that the photograph has not been modified.

    摘要翻译: 提供了配置为验证使用数码相机拍摄的数码照片的真实性以及相关方法和计算机程序产品的数码相机。 获得与使用数码相机拍摄的照片相关联的GPS信息。 生成构成照片的像素校验和和获得的GPS信息。 生成的校验和使用与数码相机相关联的专用密钥进行加密,以允许验证照片未被修改。

    System and Method for Embossing Media Used for Secure Transactions
    10.
    发明申请
    System and Method for Embossing Media Used for Secure Transactions 审中-公开
    压印用于安全交易的介质的系统和方法

    公开(公告)号:US20150246524A1

    公开(公告)日:2015-09-03

    申请号:US14635471

    申请日:2015-03-02

    IPC分类号: B41F19/02

    摘要: A system and method for embossing a media substrate used for secure transactions. The system includes, but is not limited to, a printer, having a non-transitory computer-readable storage medium having program code for: storing a first plurality of security features, wherein the first plurality of security features comprise embossment features; printing a first embossment feature of the first plurality of security features on the media substrate upon a first predetermined interval; printing a second embossment feature of the first plurality of security features on the media substrate upon a second predetermined interval; and printing the first embossment feature and the second embossment feature on the media substrate of the first plurality of security features upon a third predetermined interval.

    摘要翻译: 用于压印用于安全交易的介质基板的系统和方法。 该系统包括但不限于打印机,其具有具有用于存储第一多个安全特征的程序代码的非暂时性计算机可读存储介质,其中所述第一多个安全特征包括压纹特征; 在第一预定间隔上在所述介质基板上印刷所述第一多个安全特征的第一凸起特征; 在第二预定间隔上在所述介质基板上印刷所述第一多个安全特征的第二凸起特征; 以及在第三预定间隔上将所述第一多个安全特征的所述第一压花特征和所述第二压印特征印刷在所述第一多个安全特征的所述介质基板上。