公开(公告)号：US06738159B2

公开(公告)日：2004-05-18

申请号：US09410286

申请日：1999-09-30

申请人： Steven J. Harrington

发明人： Steven J. Harrington

IPC分类号： H04N158

CPC分类号： H04N1/58

摘要： This invention relates to a method and apparatus for implementing a trapping operation on a digital image during image processing. More specifically, the invention is directed to implementation of a trapping technique to prevent visual gaps or overlaps between colors on a poorly registered image that is produced by an imaging device, e.g. a color printer. The invention is most advantageously used in an imaging device that incorporates therein a split-level buffer.

摘要翻译： 本发明涉及一种用于在图像处理期间对数字图像进行捕获操作的方法和装置。 更具体地，本发明涉及捕获技术的实现，以防止由成像装置产生的不良登记图像上的视觉间隙或颜色之间的重叠。 彩色打印机。 本发明最有利地用于其中结合有分级缓冲器的成像装置。

公开(公告)号：US06583897B1

公开(公告)日：2003-06-24

申请号：US09449379

申请日：1999-11-24

申请人： Steven J. Harrington

发明人： Steven J. Harrington

IPC分类号： G06F1500

CPC分类号： G06T5/002 ,  G06T2200/12 ,  G06T2207/20012

摘要： A method of smoothing edges of an input image is provided for use in connection with an image rendering engine that supports two opposing intensity levels and a range of intermediate intensity levels there between. The method includes sampling scan lines from the input image. Each scan line includes an array of pixels, and each pixel possesses one of the two opposing intensity levels. Simultaneously a plurality of the scan lines are buffered. Thereafter, the method includes detecting defined patterns in an unbounded region within the buffered scan lines. Finally, intensity levels of selected pixels are adjusted to intermediate intensity levels in response to the defined patterns detected.

摘要翻译： 提供一种平滑输入图像边缘的方法，用于与支持两个相对强度水平的图像呈现引擎和其间的中间强度级别的范围相结合。 该方法包括从输入图像采样扫描线。 每个扫描线包括像素阵列，并且每个像素具有两个相对强度水平中的一个。 同时，缓冲多条扫描线。 此后，该方法包括检测缓冲的扫描线内的无界区域中的定义的模式。 最后，响应于检测到的限定模式，将所选像素的强度水平调整到中等强度水平。

公开(公告)号：US06539125B1

公开(公告)日：2003-03-25

申请号：US09217645

申请日：1998-12-21

申请人： Steven J. Harrington

发明人： Steven J. Harrington

IPC分类号： G06T550

CPC分类号： G06T5/002 ,  G06T5/20 ,  G06T2207/20032 ,  G06T2207/20192 ,  H04N1/409

摘要： The present invention provides a method for filtering noise out of an image. The image is constructed of pixels having varying intensity values. The method includes reading the intensity values for pixels within a neighborhood of an object pixel. Thereafter, a number of intensity values are selected from the read intensity values. The selected intensity values are those closest to the intensity value of the object pixel. A median value for the selected intensity values is then calculated. Finally, the median value is assigned as a new intensity value for the object pixel.

摘要翻译： 本发明提供一种从图像中滤除噪声的方法。 图像由具有不同强度值的像素构成。 该方法包括读取对象像素的邻域内的像素的强度值。 此后，从读取强度值中选择多个强度值。 所选择的强度值是与目标像素的强度值最接近的强度值。 然后计算所选强度值的中值。 最后，将中值分配为对象像素的新强度值。

公开(公告)号：US06525741B1

公开(公告)日：2003-02-25

申请号：US09386014

申请日：1999-08-30

申请人： R. Victor Klassen ,  Steven J. Harrington

发明人： R. Victor Klassen ,  Steven J. Harrington

IPC分类号： G09G500

CPC分类号： G06T11/001 ,  G06T2200/12 ,  H04N5/272 ,  H04N9/75

摘要： A method of combining a foreground image and a background image includes scaling up a pixel of interest, which is positioned along an edge between a subject and a key colored backing, into a plurality of edge subpixels. The pixel of interest is included in a digital antialiased foreground image. A corresponding pixel of a digital background scene is also scaled up. The corresponding pixel is associated with the pixel of interest and is scaled up into a plurality of background subpixels. For each of the edge subpixels, if a color of the edge subpixel matches the key colored backing, a respective new color of the edge subpixel is determined as a function of one of the background subpixels, which is associated with the edge subpixel. Also, the new color is stored to the edge subpixel. After all the subpixels have been evaluated, the edge subpixels are scaled down to a new pixel of interest.

摘要翻译： 组合前景图像和背景图像的方法包括将沿着被摄体和彩色背景的键之间的边缘定位的感兴趣的像素放大到多个边缘子像素中。 感兴趣的像素被包括在数字抗锯齿前景图像中。 数字背景场景的相应像素也被放大。 对应的像素与感兴趣的像素相关联并且被放大到多个背景子像素。 对于每个边缘子像素，如果边缘子像素的颜色与键色背衬匹配，则根据与边缘子像素相关联的背景子像素之一来确定边缘子像素的相应新颜色。 此外，新的颜色存储到边缘子像素。 在所有子像素被评估之后，边缘子像素被缩小到新的关注像素。

公开(公告)号：US06507676B1

公开(公告)日：2003-01-14

申请号：US09459655

申请日：1999-12-13

申请人： Steven J. Harrington

发明人： Steven J. Harrington

IPC分类号： G06K936

CPC分类号： G06T7/44

摘要： Systems and methods for determining the texture of the images to be processed are provided. An image data manager is provided that is capable of generating summed-area tables to be applied in texture mapping for texture that have no special direction or orientation, by generating summed-area tables for areas that best approximate circles. The image data manager uses the generated summed-area tables to process the image data. The summed-areas tables applied include a hexagon and an octagon. Accordingly, problems in processing images having textures that have no special direction or orientation, are reduced or eliminated.

摘要翻译： 提供了用于确定要处理的图像的纹理的系统和方法。 提供了一种图像数据管理器，其能够通过针对最佳近似圆的区域生成总和区域表来产生要用于不具有特定方向或取向的纹理的纹理映射中的求和区域表。 图像数据管理器使用生成的求和区域表来处理图像数据。 所应用的总计表格包括六边形和八边形。 因此，减少或消除了处理具有没有特别方向或取向的纹理的图像的问题。

公开(公告)号：US06480196B1

公开(公告)日：2002-11-12

申请号：US09466873

申请日：1999-12-20

申请人： Steven J. Harrington

发明人： Steven J. Harrington

IPC分类号： G06T1120

CPC分类号： G06T11/203

摘要： A method and system compensates for the line width growth or shrinkage in an image rendering system that supports high-addressability. The amount of width adjustment can be a function of the line width. The method is applied after rendering, to the sub-pixel, bit patterns and is compatible with antialiasing and other sub-pixel rendering techniques such as half-bitting. The method and system also require less scan buffering for marker line width compensation than conventional methods. More specifically, the method and system require N+3 scans to detect and adjust widths up to N pixels for leading edges or trailing edges rather than the 2N+3 necessary conventionally. Moreover, the detection and adjustment of widths up to N pixels may be performed for both leading edges and trailing edges using a buffer that can handle 2N+3 scans.

摘要翻译： 一种方法和系统补偿了支持高寻址能力的图像渲染系统中的线宽增长或收缩。 宽度调整量可以是线宽的函数。 该方法在渲染之后应用于子像素，位图案，并且与抗锯齿和其他子像素渲染技术（例如半针）兼容。 该方法和系统对于标记线宽度补偿而言比传统方法还要求较少的扫描缓冲。 更具体地说，该方法和系统需要N + 3扫描来检测和调整前导边缘或后沿的N个像素的宽度，而不是传统上所需的2N + 3。 此外，可以使用可以处理2N + 3扫描的缓冲器来对前导边缘和后沿对宽度进行最多N个像素的检测和调整。

公开(公告)号：US06169607A

公开(公告)日：2001-01-02

申请号：US08752191

申请日：1996-11-18

申请人： Steven J. Harrington

发明人： Steven J. Harrington

IPC分类号： G06F1500

CPC分类号： G06K15/02 ,  G06K2215/0014 ,  G06K2215/0082

摘要： A document containing colored text is reproduced in a way to preserve the color intent if the reproduced document is copied on a black-and-white device. For small text, the fact that it is colored, is conveyed by reproducing it bold, and for medium size text, by reproducing it outlined. For large text, both the fact that it is colored and the color used can be conveyed by filling the interior of the characters with patterns that correspond directly to the color.

摘要翻译： 如果将再现的文档复制到黑白设备上，则以一种保留颜色意图的方式复制包含彩色文本的文档。 对于小文本，它是彩色的事实，通过再现它粗体和中等大小的文本，通过复制概述。 对于大文本，可以通过用与颜色直接相对应的图案填充字符的内部来传达颜色和使用颜色的事实。

公开(公告)号：US6137918A

公开(公告)日：2000-10-24

申请号：US46426

申请日：1998-03-23

申请人： Steven J. Harrington ,  Robert P. Loce

发明人： Steven J. Harrington ,  Robert P. Loce

IPC分类号： H04N1/409 ,  G06K15/02 ,  G06T5/00 ,  G06T5/20 ,  G09G5/36 ,  G06K9/40

CPC分类号： G06K15/02 ,  G06K2215/0071

摘要： The present invention is a method for efficiently processing an image to detect antialiased pixels using reduced buffering memory. The method stores, in a scanline buffer memory, a predefined number of scanlines of data including data for a target pixel position and, in a tag buffer memory, a plurality of binary antialiasing tags, including at least a previously estimated tag for the target pixel position. Then using the stored pixel data and previously estimated tag, an antialiasing tag for the target pixel position is generated.

摘要翻译： 本发明是一种用于使用减少的缓冲存储器来有效地处理图像以检测抗锯齿像素的方法。 该方法在扫描线缓冲存储器中存储包括目标像素位置的数据的预定数量的数据扫描线，并且在标签缓冲存储器中存储多个二进制抗混叠标签，所述多个二值抗锯齿标签至少包括用于目标像素的先前估计的标签 位置。 然后使用存储的像素数据和先前估计的标签，生成针对目标像素位置的抗混叠标签。

公开(公告)号：US6097838A

公开(公告)日：2000-08-01

申请号：US306162

申请日：1999-05-06

申请人： R. Victor Klassen ,  Steven J. Harrington ,  Thyagarajan Balasubramanian ,  Ricardo L. de Queiroz

发明人： R. Victor Klassen ,  Steven J. Harrington ,  Thyagarajan Balasubramanian ,  Ricardo L. de Queiroz

IPC分类号： H04N11/04 ,  H04N1/41 ,  H04N1/46 ,  H04N1/60 ,  H04N7/30 ,  G06K9/00 ,  G03F3/08 ,  G06K9/36 ,  G06K9/38 ,  G06K9/46

CPC分类号： H04N1/64 ,  H04N1/60

摘要： The present invention is a method for the color correction of digital images that have been compressed. In a preferred embodiment, aspects of the color correction are carried out on the compressed image data to improve computational efficiency. One of a number of alternative methods is employed to accomplish the color correction on lossy or losslessly compressed images. The color transformation process accomplishes color correction on compressed image data in conjunction with compression or decompression operations. A second, simplified phase of the color correction may be applied subsequently to the decompressed image data in certain embodiments. Accordingly, the technique has application to any number of color imaging systems, including digital printers and copiers where there is a necessity to color correct compressed digital images

摘要翻译： 本发明是一种已被压缩的数字图像的颜色校正方法。 在优选实施例中，对压缩图像数据执行颜色校正的方面以提高计算效率。 采用多种替代方法之一来实现有损或无损压缩图像上的色彩校正。 颜色转换处理结合压缩或解压缩操作对压缩图像数据进行颜色校正。 在某些实施例中，随后可以对解压缩的图像数据应用颜色校正的第二简化阶段。 因此，该技术适用于任何数量的彩色成像系统，包括数字打印机和复印机，其中需要对正确的压缩数字图像进行着色

公开(公告)号：US6072591A

公开(公告)日：2000-06-06

申请号：US885691

申请日：1997-06-30

申请人： Steven J. Harrington

发明人： Steven J. Harrington

IPC分类号： H04N1/405 ,  G06T1/00 ,  G06T5/00 ,  G06T11/00 ,  G09G5/00 ,  G09G5/02 ,  H04N1/52 ,  H04N1/60 ,  B41B15/00 ,  B41J15/00 ,  G06F15/00 ,  G06K1/00

CPC分类号： H04N1/52

摘要： A vector error diffusion system for quantizing pixel value in color images, which initially determines whether any pixel should be white or colored, and subsequently determines whether the pixel should be a primary color, a secondary color or black.

摘要翻译： 用于量化彩色图像中的像素值的矢量误差扩散系统，其最初确定任何像素是否应该是白色或有色的，并且随后确定像素是基色还是次色或黑色。