Adaptive data embedding method for improved image quality
    2.
    发明公开
    Adaptive data embedding method for improved image quality 审中-公开
    用于增强图像质量的自适应数据嵌入方法

    公开(公告)号:EP1120741A3

    公开(公告)日:2003-04-16

    申请号:EP01200129.3

    申请日:2001-01-15

    IPC分类号: G06T1/00

    CPC分类号: G06T1/0028

    摘要: An improved method of embedding a message in a digital image, the method including the steps of generating a random phase carrier, convolving the message and the random phase carrier to form a dispersed message and adding the dispersed message to the digital image to form an image having an embedded hidden message, the improvement including the step of, modifying the amplitude of the dispersed message as a function of the lightness of the digital image prior to adding the dispersed message to the digital image.

    Printing apparatus with spray bar for improved durability
    3.
    发明公开
    Printing apparatus with spray bar for improved durability 有权
    Druckapparat mitSprühbalkenfürverbesserte Halbarkeit

    公开(公告)号:EP0958921A2

    公开(公告)日:1999-11-24

    申请号:EP99201484.5

    申请日:1999-05-12

    IPC分类号: B41J2/01 B41J2/04

    摘要: A printing apparatus for producing an image on an ink receiver in response to an in put image, comprising: at least one ink reservoir for providing ink for printing the image; a print head means coupled to an ink receiver and at least one ink reservoir, for disposing ink spots on the ink receiver; a fluid reservoir for providing a fluid for treating the ink spots disposed on the receiver; and a spray bar coupled to the ink receiver and the fluid reservoir, for depositing the fluid on the ink spots disposed on the ink receiver thereby improving the stability, durability, and quality of the image.

    摘要翻译: 一种用于响应于放入图像在油墨接收器上产生图像的打印装置,包括:用于提供用于打印图像的油墨的至少一个油墨储存器; 连接到墨水接收器和至少一个墨水容器的打印头装置,用于在墨水接收器上布置墨点; 用于提供用于处理设置在接收器上的墨点的流体的流体储存器; 以及连接到墨接收器和流体储存器的喷杆,用于将流体沉积在设置在墨接收器上的墨点上,从而提高图像的稳定性,耐久性和质量。

    Authorizing the production of visual images from digital images
    4.
    发明公开
    Authorizing the production of visual images from digital images 审中-公开
    权限,以产生数字图像的视觉图像

    公开(公告)号:EP1137244A3

    公开(公告)日:2004-01-07

    申请号:EP00110590.7

    申请日:2000-05-18

    发明人: Wen, Xin

    IPC分类号: H04N1/00

    摘要: A method for authorizing the making of a visual image from a digital image includes receiving the digital image having embedded authorization information, extracting the authorization information from the digital image, and verifying that the extracted embedded authorization information permits an imaging device to form the visual image of the digital image. After the verifying step, the imaging device forms the visual image from the digital image.

    Digital ink jet printing apparatus and method
    5.
    发明公开
    Digital ink jet printing apparatus and method 失效
    装置和方法,用于数字喷墨印刷

    公开(公告)号:EP0893258A3

    公开(公告)日:1999-12-15

    申请号:EP98202341.8

    申请日:1998-07-13

    IPC分类号: B41J2/04 B41J2/05

    摘要: Digital ink jet printing apparatus and method. The apparatus receives an input image file having a plurality of pixels, each pixel described by at least one pixel value respectively associated with an optical density. The apparatus comprises a printhead (50) and at least one nozzle (45) integrally attached to the printhead, the nozzle being capable of ejecting an ink droplet (47) therefrom to define an associated one of the optical densities. A waveform generator (230) is connected to the nozzle for generating an electronic waveform (80) to be supplied to the nozzle. In this manner, the nozzle ejects the ink droplet in response to the waveform supplied thereto. The waveform is defined by a plurality of pulses (90). A look-up table (60) stores a plurality of waveform serial numbers assigned to respective waveforms, each waveform being defined by at least one predetermined parameter, such as number of pulses, pulse amplitude, pulse width and/or time delay between pulses. A calibrator receiving the input image converts the pixel values of the input image to waveform index number associated with the waveform serial number.

    Changing the properties of digital images having embedded image-access information
    8.
    发明公开
    Changing the properties of digital images having embedded image-access information 审中-公开
    Äon on on on n formation formation formation formation formation formation formation formation

    公开(公告)号:EP1117247A1

    公开(公告)日:2001-07-18

    申请号:EP00109417.6

    申请日:2000-05-03

    发明人: Wen, Xin

    IPC分类号: H04N1/00

    摘要: A method for producing a visual image having selected properties and for providing payment includes storing a digital image having embedded image-access information in an electronic memory, the image-access information including the receiver of payment and selectable image properties for which different payments are to be made, accessing the electronic memory and extracting the image-access information from the digital image, selecting at least one property from the selectable image properties for producing the visual image, making payment to the receiver of payment based on at least in part one selected image property. The method further includes producing the visual image with the selected property in response to the digital image by an imaging device.

    摘要翻译: 一种用于产生具有选定属性和用于提供付款的视觉图像的方法包括将具有嵌入图像访问信息的数字图像存储在电子存储器中,所述图像访问信息包括支付接收者和不同支付的可选图像属性 进入电子存储器并从数字图像提取图像访问信息,从可选择的图像属性中选择至少一个属性以产生视觉图像,至少部分地根据所选择的方式向接收者支付支付 图像属性。 该方法还包括通过成像装置响应于数字图像产生具有所选属性的视觉图像。

    Ink jet printing apparatus and method for improved accuracy of ink droplet placement
    9.
    发明公开
    Ink jet printing apparatus and method for improved accuracy of ink droplet placement 有权
    Tintenstrahldruckapparat和Verfahren zum Tintentropfchenpositionieren mit verb desserten Genauigkeit

    公开(公告)号:EP0931663A3

    公开(公告)日:2000-01-12

    申请号:EP98204438.0

    申请日:1998-12-23

    IPC分类号: B41J2/205 H04N1/053

    摘要: Ink jet printing apparatus and method for improved accuracy of ink droplet placement on a receiver medium (30) by compensating for jet direction variabilities between ink nozzles (45). More specifically, the invention is an ink jet printing apparatus and method for printing an output image on a receiver medium in response to an input image file having a plurality of pixels. The apparatus includes a print head (50) and a nozzle integrally attached to the print head. The nozzle has a droplet placement characteristic, for example, undesired placement of the droplet on the receiver medium, associated therewith. A waveform generator (230) associated with the nozzle generates an electronic waveform (80) comprising a plurality of electronic pulses (90) to be supplied to the nozzle for adjusting the droplet placement characteristic. In this manner, the invention compensates for the undesired droplet placement characteristic, so that the droplet (47) is accurately placed on the receiver medium irrespective of physical variabilities between nozzles.

    摘要翻译: 喷墨打印设备和方法,用于通过补偿墨喷嘴(45)之间的喷射方向变化来提高墨滴在接收介质(30)上的放置精度。 更具体地,本发明是一种用于响应于具有多个像素的输入图像文件在接收介质上打印输出图像的喷墨打印设备和方法。 该设备包括打印头(50)和一体地附接到打印头的喷嘴。 喷嘴具有液滴放置特性,例如,不期望地将液滴放置在与其相关联的接收介质上。 与喷嘴相关联的波形发生器(230)产生包括多个电子脉冲(90)的电子波形(80),以供给喷嘴以调整液滴放置特性。 以这种方式,本发明补偿不期望的液滴放置特性,使得液滴(47)精确地放置在接收器介质上,而与喷嘴之间的物理变化无关。