公开(公告)号：US20040257620A1

公开(公告)日：2004-12-23

申请号：US10601686

申请日：2003-06-23

申请人： Xerox Corporation

发明人： Robert P. Loce ,  Jon S. McElvain

IPC分类号： H04N001/405 ,  H04N001/409 ,  G06T005/00

CPC分类号： H04N1/4092 ,  G06T5/002 ,  G06T2200/12 ,  G06T2207/30176 ,  H04N1/409 ,  H04N1/58

摘要： Methods and apparatus for antialiasing images that contain one or more image objects such as colored text, line art, and graphical objects, such that the edge pixels of an antialiased image object will exhibit relatively uniform values, and the appearance of the image object is thereby improved. In one embodiment, an improved antialiasing filter is employed to detect at least one region within the received image. Upon detecting a region containing a background image level that adjoins an image object having pixel values in a range other than a range of limit values, the antialiasing filter sets the pixel values of the edge or border pixels of the image object to substantially the same value. Selection among a logical filter operation and an averaging filter operation may be adaptively employed in the antialiasing filter in order to obtain the desired uniformity of pixel values.

摘要翻译： 用于对包含一个或多个图像对象（例如彩色文本，线条图形和图形对象）的图像进行抗锯齿的方法和装置，使得抗锯齿图像对象的边缘像素将呈现相对均匀的值，并且因此图像对象的外观 改进。 在一个实施例中，采用改进的抗混叠滤波器来检测接收到的图像内的至少一个区域。 在检测到包含与限制值范围以外的范围内的像素值相邻的背景图像级别的区域时，抗锯齿滤波器将图像对象的边缘或边界像素的像素值设定为基本相同的值 。 可以在抗混叠滤波器中自适应地采用逻辑滤波器操作和平均滤波器操作之间的选择，以便获得期望的像素值的均匀性。

公开(公告)号：US20040239995A1

公开(公告)日：2004-12-02

申请号：US10446785

申请日：2003-05-29

申请人： KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA TEC KABUSHIKI KAISHA

发明人： Tetsuya Sadowara

IPC分类号： G06K015/02 ,  H04N001/64 ,  H04N001/60 ,  H04N001/58 ,  H04N001/409 ,  H04N001/40

CPC分类号： H04N1/46

摘要： A copier and method for automatically determining whether the original is color or monochrome and generating a corresponding copy. The copier comprises a scanner which generates RGB data from the document, a color/monochrome processor which determines whether the document is a color or monochrome document based on the RGB data from the scanner.

摘要翻译： 一种用于自动确定原稿是彩色还是单色以及生成相应副本的复印机和方法。 复印机包括从文档生成RGB数据的扫描器，基于来自扫描仪的RGB数据确定文档是彩色还是单色文档的彩色/单色处理器。

公开(公告)号：US20040239962A1

公开(公告)日：2004-12-02

申请号：US10445851

申请日：2003-05-28

申请人： XEROX CORPORATION

发明人： Charles M. Hains

IPC分类号： H04N001/405 ,  H04N001/409 ,  H04N001/52 ,  H04N001/58

CPC分类号： H04N1/4058

摘要： Historically, the creation of digital line screens was considered to be a subset of the creation of the digital cluster dot screens. The geometric constraints necessary for digital cluster dot screens were imported into the creation of digital line screens. Accordingly, the number of available angles or digital line screens was also significantly limited. In various exemplary embodiments of the systems and methods according to this invention, a digital line screen cell is defined such that the vectors defining the digital line screen cell are not necessarily isometric and are not necessarily at right angles to each other. By using a high-addressability grid that has different resolutions along x and y axis of the grid, the systems and methods according to this invention allow the components of the vectors along the high-addressability direction to be noninteger multiples of the components of the vectors along the other direction of the grid.

摘要翻译： 历史上，数字线屏幕的创建被认为是创建数字集群点阵屏幕的一个子集。 数字集群点阵屏幕所需的几何约束被导入数字线屏幕的创建。 因此，可用角度或数字线屏幕的数量也受到显着限制。 在根据本发明的系统和方法的各种示例性实施例中，定义数字线屏幕单元，使得定义数字线屏幕单元的矢量不一定是等距的，并且不一定彼此成直角。 通过使用在网格的x和y轴上具有不同分辨率的高可寻址性网格，根据本发明的系统和方法允许向量沿着高寻址方向的分量成为向量分量的非整数倍数 沿着电网的另一个方向。

公开(公告)号：US20040207880A1

公开(公告)日：2004-10-21

申请号：US10417843

申请日：2003-04-17

发明人： Khageshwar Thakur

IPC分类号： H04N001/405 ,  H04N001/409 ,  H04N001/52 ,  H04N001/58

CPC分类号： H04N1/409 ,  H04N1/4052

摘要： A method for reducing or eliminating residual error when nullblanknull pixels are found in the input image data is provided, such as one that can be used in printers of the type which use error diffusion as part of the halftoning process. When a blank pixel is found, the residual error may be immediately reduced in magnitude in one embodiment. In another embodiment, a nullhop countnull value is increased (or incremented) when a blank pixel is found, and if sufficient consecutive blank pixels exist in the input data, the hop count achieves a threshold and then either decimates or eliminates the residual error, thus limiting the migration of residual error. If a non-blank pixel is found in the input data before the threshold is achieved, the hop count is reset to zero.

摘要翻译： 提供了一种用于在输入图像数据中发现“空白”像素时减少或消除残差的方法，例如可以在使用误差扩散作为半色调处理的一部分的打印机中使用的方法。 当找到空白像素时，在一个实施例中可以立即减小残差。 在另一个实施例中，当找到空白像素时，增加（或递增）“跳计数”值，并且如果在输入数据中存在足够的连续空白像素，则跳计数达到阈值，然后抽取或消除残差 ，从而限制了残差的迁移。 如果在达到阈值之前在输入数据中找到非空白像素，则跳数被重置为零。

公开(公告)号：US20040201870A1

公开(公告)日：2004-10-14

申请号：US10803912

申请日：2004-03-19

发明人： Tadashi Araki

IPC分类号： H04N001/409 ,  G06T005/00 ,  H04N001/053

CPC分类号： H04N1/387 ,  H04N2201/0434

摘要： An image processing apparatus which includes an image reading apparatus comprising a first memory, a book image corrector, and a selector. The first memory stores optical positioning information of the image reading apparatus. The book image corrector performs an image correction based on reference data from an image read by the image reading apparatus when the image is of a book document. The selector selects one of the plurality of different correction modes of the second corrector based on the optical positioning information stored in the first memory. The book image corrector includes a first corrector configured to correct in a main scanning direction a distortion of the image of the book document based on the reference data and a second corrector having a plurality of different correction modes configured to correct a distortion of the image of the book document in a sub-scanning direction.

摘要翻译： 一种图像处理装置，其包括图像读取装置，该图像读取装置包括第一存储器，书本图像校正器和选择器。 第一存储器存储图像读取装置的光学定位信息。 当图像是书本文件时，书本图像校正器基于来自图像读取装置读取的图像的参考数据执行图像校正。 选择器基于存储在第一存储器中的光学定位信息来选择第二校正器的多个不同校正模式之一。 书图像校正器包括：第一校正器，被配置为基于参考数据在主扫描方向上校正书本文档的失真;以及第二校正器，具有多个不同的校正模式，其被配置为校正图像的失真 书本文件在副扫描方向。

公开(公告)号：US20040190059A1

公开(公告)日：2004-09-30

申请号：US10821490

申请日：2004-04-09

发明人： Kirt A. Winter ,  Yoav Epstein ,  William C. Hilliard

IPC分类号： G06K015/02 ,  H04N001/409 ,  H04N001/387 ,  G06F003/12 ,  G06F015/00 ,  H04N001/58

CPC分类号： H04N1/00143 ,  H04N1/00132 ,  H04N1/00167 ,  H04N1/00175 ,  H04N1/00188 ,  H04N1/00968

摘要： A digital still camera is used for taking and storing digital representations of a plurality of images. A printer, such as an ink jet printer or a laser printer, is used for generating graphical representations of selected ones of the plurality of images on a preselected print media such as a paper. A flash memory card, floppy diskette, direct data link or some other data transfer scheme is used to transfer the digital representations of the plurality of images from the digital still camera to the printer. The printer includes programming for generating a combination proof sheet and order form. The combination proof sheet and order form can include an array of thumbnail images and a plurality of image selection and/or image enhancement user designation areas such as bubbles to be filled in by the user with a pencil. The printer includes a scanner and related circuitry and software for scanning the combination proof sheet and order form to detect the user designation areas completed by the user. The programming in the printer thereafter causes it to generate at least one final print sheet with the images and enhancements designated by the user on the combination proof sheet and order form. The proof sheet and order form can be used to designate the number of final prints of a selected image, the size and/or cropping of the prints, the brightness, color balance, background, borders and so forth.

公开(公告)号：US20040190021A1

公开(公告)日：2004-09-30

申请号：US10785676

申请日：2004-02-24

发明人： Thomas J. Foster

IPC分类号： G06K015/14 ,  H04N001/407 ,  H04N001/409 ,  G06K009/46 ,  H04N001/29 ,  G06T007/00 ,  G06T005/00

CPC分类号： H04N1/4092 ,  G06K15/1871 ,  G06K15/188

摘要： A method of altering the appearance of an input digital image when printed, the digital image comprised of an array of pixels and wherein each pixel is assigned a digital value representing marking information, the method comprises the steps of defining each pixel as either a background pixel, interior pixel, or an edge pixel; identifying enclosed edge pixels located on the edge of enclosed areas of print characters having enclosed areas; and, reassigning the digital value of one or more enclosed edge pixels independently of other pixels. The rendering of the present invention occurs post RIP.

摘要翻译： 一种在打印时改变输入数字图像的外观的方法，所述数字图像由像素阵列组成，并且其中每个像素被分配有表示标记信息的数字值，所述方法包括以下步骤：将每个像素定义为背景像素 ，内部像素或边缘像素; 识别位于具有封闭区域的打印字符的封闭区域的边缘上的封闭边缘像素; 并且独立于其他像素重新分配一个或多个封闭边缘像素的数字值。 本发明的渲染发生在RIP之后。

公开(公告)号：US20040169891A1

公开(公告)日：2004-09-02

申请号：US10376888

申请日：2003-02-28

发明人： Ron P. Maurer

IPC分类号： H04N001/409 ,  G06T005/00

CPC分类号： H04N1/4095

摘要： A group of pixels of a digital image is processed to reduce bleed-through. The processing includes generating an upper bound for each pixel of the group; and taking a weighted average of the upper bound and original pixel intensity for each pixel of the group.

摘要翻译： 处理数字图像的一组像素以减少渗透。 该处理包括生成该组的每个像素的上界; 并对该组的每个像素取上限和原始像素强度的加权平均值。

公开(公告)号：US20040165202A1

公开(公告)日：2004-08-26

申请号：US10784167

申请日：2004-02-24

申请人： KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA TEC KABUSHIKI KAISHA

发明人： Kunihiro Nakagawa

IPC分类号： H04N001/387 ,  H04N001/409 ,  G06T003/60 ,  G06T005/00 ,  G06K015/02

CPC分类号： G06T3/60 ,  H04N1/3877

摘要： Image data, for example, image data that was gradation processed and replaced with a raster image is stored in every page of a page memory. The image data stored in this page memory is rotated in the left or right direction by 90null at a specified angle. By this rotation of image data, pixels with positional relation changed from that before the rotation are corrected to come near to the positional relation before the rotation. Then, an image is formed based on image data with the corrected positional relation of pixels.

摘要翻译： 图像数据，例如，经过灰度处理并被光栅图像替换的图像数据被存储在页面存储器的每一页中。 存储在该页存储器中的图像数据在左右方向以指定角度旋转90°。 通过图像数据的旋转，校正具有与旋转之前的位置关系改变的位置关系的像素接近旋转之前的位置关系。 然后，基于具有校正的像素的位置关系的图像数据形成图像。

公开(公告)号：US20040156060A1

公开(公告)日：2004-08-12

申请号：US10657372

申请日：2003-09-08

申请人： Konica Corporation

发明人： Chizuko Ikeda ,  Tsukasa Ito ,  Hiroaki Takano

IPC分类号： H04N001/58 ,  H04N001/409 ,  H04N001/60

CPC分类号： H04N1/6027 ,  H04N1/4092

摘要： An image processing method of producing visual image-referred data, comprising a large region and detail signal producing step of producing large region signals and detail signals by processing inputted-image data; a storing step of storing at least the large region signals and the detail signals in a memory medium; and an image processing step of obtaining the large region signals and the detail signals from the memory medium and producing visual image-referred data by applying an image processing process for the obtained large region and detail signals in order to optimize an visual image formation on an output medium.

摘要翻译： 一种产生视觉图像参考数据的图像处理方法，包括通过处理输入图像数据产生大区域信号和细节信号的大区域和细节信号产生步骤; 存储步骤，至少将大区域信号和细节信号存储在存储介质中; 以及图像处理步骤，通过对所获得的大区域和细节信号应用图像处理处理来获得来自存储介质的大区域信号和细节信号并产生视觉图像参考数据，以便优化在所获得的大区域和细节信号上的视觉图像形成 输出介质。