公开(公告)号：US20090257072A1

公开(公告)日：2009-10-15

申请号：US12102568

申请日：2008-04-14

Applicant: R. Victor Klassen

Inventor： R. Victor Klassen

IPC: H04N1/60

CPC classification number: H04N1/6019 ,  H04N1/41

Abstract: A technique to compress multidimensional color look-up tables by computing an inexpensive fit to the contents of the tables is provided. At each node of the table, the difference between the result of evaluating the fit and the original value at that node are completed. In one form, the parameters of the fit and the differences are stored and compressed, possibly losslessly.

Abstract translation: 提供了一种通过计算对表格内容的廉价适应来压缩多维颜色查找表的技术。 在表的每个节点处，完成对该节点的拟合结果和原始值之间的差异。 在一种形式中，拟合和差异的参数被存储和压缩，可能是无损的。

公开(公告)号：US07590501B2

公开(公告)日：2009-09-15

申请号：US11845969

申请日：2007-08-28

Applicant: R. Victor Klassen

Inventor： R. Victor Klassen

IPC: G01D18/00

CPC classification number: H04N1/00002 ,  H04N1/00013 ,  H04N1/00018 ,  H04N1/00034 ,  H04N1/00039 ,  H04N1/00045 ,  H04N1/00047 ,  H04N1/00063 ,  H04N1/00068 ,  H04N1/00087

Abstract: Systems and methods are described that facilitate calibrating a scanner by capturing a plurality of white calibration files and generating a mathematical function that models the scanner. For instance, a white calibration file can be captured before and after a page is scanned, and the function can be an average of offset and gain values for pixels in scanlines of the scanned page. Three or more white calibration files can be used to generate a linear function (e.g., using linear regression) or an exponential function describing the gain an offset values of the pixels.

Abstract translation: 描述了通过捕获多个白色校准文件并产生对扫描仪建模的数学函数来促进校准扫描仪的系统和方法。 例如，可以在扫描页面之前和之后捕获白色校准文件，并且该功能可以是扫描页面扫描线中像素的偏移和增益值的平均值。 可以使用三个或更多个白色校准文件来生成线性函数（例如，使用线性回归）或将像素的偏移值描述为增益的指数函数。

公开(公告)号：US20090161163A1

公开(公告)日：2009-06-25

申请号：US11961102

申请日：2007-12-20

Applicant: R. Victor Klassen ,  Peter A. Crean ,  Michael Campanella

Inventor： R. Victor Klassen ,  Peter A. Crean ,  Michael Campanella

IPC: G06K15/00

CPC classification number: G06F3/124 ,  G06F3/1213

Abstract: A method and system is provided for splitting a print job into its preamble and at least one chunk. The splitter maintains a collection of RIP node addresses to which chunks of the job currently being split have already been sent. When a new chunk is about to be sent, the splitter checks whether each RIP node address has already received a chunk. If the RIP node has not already received a chunk, the splitter sends the preamble as well as the chunk to an available RIP associated with the RIP node. If, however, the RIP node address has already received a chunk, only the portion of the chunk after the preamble is sent to an available RIP associated with the RIP node and communicate the location of the preamble to the available RIP node. The preamble may contain common content for each job.

Abstract translation: 提供了一种用于将打印作业分解成其前导码和至少一个块的方法和系统。 分配器维护目前正在拆分的作业块已经发送到的RIP节点地址的集合。 当新的组块即将发送时，分片器会检查每个RIP节点地址是否已经收到一个块。 如果RIP节点尚未收到块，则分离器将前导码以及该块发送到与RIP节点相关联的可用RIP。 然而，如果RIP节点地址已经接收到一个块，则只有前导码之后的块的部分才被发送到与RIP节点相关联的可用RIP，并且将该前导码的位置传送到可用的RIP节点。 前导码可能包含每个作业的常见内容。

公开(公告)号：US07215440B2

公开(公告)日：2007-05-08

申请号：US09750552

申请日：2000-12-28

Applicant: R. Victor Klassen ,  Thyagarajan Balasubramanian

Inventor： R. Victor Klassen ,  Thyagarajan Balasubramanian

IPC: G06F15/00 ,  H04N1/46

CPC classification number: H04N1/6019

Abstract: A method for converting a specified color value from a first color space to a second color space identifies the specified color value in the first color space. A converted color space value is received from a final lookup table. The converted color space value is previously determined as a function of the specified color value and a mid-point interpolation and represents the specified color in the second color space. The converted color space value is stored in a memory device.

Abstract translation: 将指定颜色值从第一颜色空间转换为第二颜色空间的方法识别第一颜色空间中指定的颜色值。 从最终查找表接收转换的颜色空间值。 转换的颜色空间值预先被确定为指定颜色值和中点插值的函数，并且表示第二颜色空间中的指定颜色。 转换的色彩空间值被存储在存储器件中。

公开(公告)号：US20070002403A1

公开(公告)日：2007-01-04

申请号：US11170975

申请日：2005-06-30

Applicant: R. Victor Klassen

Inventor： R. Victor Klassen

IPC: H04N1/46

CPC classification number: H04N1/4078

Abstract: The presently described embodiments provide for halftone-aligned averaging and noise reduction in a calibration method and associated system. Halftone-aligned averaging is implemented, in one form, as a method of averaging in which the window over which an average is computed is a multiple of the halftone period. Noise reduction, in one illustrative embodiment, comprises discarding windows having an average outside of the range from the 5th to the 95th percentiles of all windows for a patch.

Abstract translation: 目前描述的实施例提供了校准方法和相关系统中的半色调对齐平均和降噪。 以一种形式实现半色调对齐平均作为平均的方法，其中计算平均值的窗口是半色调时间段的倍数。 在一个说明性实施例中，噪声降低包括丢弃具有在补丁的所有窗口的第5个至第95个百分位数范围之外的平均值的窗口。

公开(公告)号：US06781720B1

公开(公告)日：2004-08-24

申请号：US09451993

申请日：1999-11-30

Applicant: R. Victor Klassen

Inventor： R. Victor Klassen

IPC: G06F1300

CPC classification number: G06T7/155 ,  G06T7/12

Abstract: A gradient-based trapping apparatus includes a processing device for receiving a current portion of a digital image. If the current portion includes an edge, a trapping device produces a trapped portion. The trapped portion represents the current portion with varying colors. The trapping device produces the trapped portion based on a plurality of patterns. Each of the patterns is chosen as a function of at least one of a) a distance of a current pixel within the current portion from the edge, b) at least one of a plurality of colors within the current portion, and c) a width of the trapped portion.

Abstract translation: 基于梯度的捕获装置包括用于接收数字图像的当前部分的处理装置。 如果当前部分包括边缘，则捕获装置产生被捕获的部分。 被捕获的部分表示具有不同颜色的当前部分。 捕获装置基于多个图案产生捕获部分。 每个图案被选择为以下中的至少一个的函数：a）当前部分中的当前像素与边缘的距离，b）当前部分内的多种颜色中的至少一种，以及c）宽度 的被困部分。

公开(公告)号：US06766051B2

公开(公告)日：2004-07-20

申请号：US09731346

申请日：2000-12-06

Applicant: R. Victor Klassen ,  Thyagarajan Balasubramanian

Inventor： R. Victor Klassen ,  Thyagarajan Balasubramanian

IPC: G06K900

CPC classification number: G06K9/00 ,  H04N1/6016 ,  H04N1/6058

Abstract: A method of color transformation is based on non-separable tiling of a color space. Non-separable tiling allows fine granularity where it is desired and coarse granularity where it is tolerable. Non-separable tiling of the color space provides improved transformation quality for a given lookup table size. Color space is recursively tiled and addressed. Transformation information from the tiles is stored in a database. Database searching techniques are used to speed information access. For example, a hashing function and hashing table are employed to store and retrieve transformation information. An image processor operative to perform the method includes a database index generator and a database of transformation information. For example, the database index generator generates a hashing key from pixel information and uses a hashing function to generate a database cell index. The image processor includes an output device. The output device is, for example, a xerographic printer.

Abstract translation: 颜色变换的方法是基于颜色空间的不可分离的平铺。 不可分割的平铺可以在需要的地方进行精细的粒度，在可容忍的地方允许粗粒度。 颜色空间的不可分离的平铺为给定的查找表大小提供了改进的转换质量。 颜色空间被递归地平铺和解决。 来自瓦片的转换信息被存储在数据库中。 数据库搜索技术用于加速信息访问。 例如，使用散列函数和散列表来存储和检索变换信息。 可操作地执行该方法的图像处理器包括数据库索引生成器和变换信息的数据库。 例如，数据库索引生成器从像素信息生成哈希键，并使用散列函数生成数据库单元索引。 图像处理器包括输出装置。 输出设备例如是静电印刷机。

公开(公告)号：US06741751B1

公开(公告)日：2004-05-25

申请号：US09641315

申请日：2000-08-18

Applicant: R. Victor Klassen

Inventor： R. Victor Klassen

IPC: G06K940

CPC classification number: G06T3/403

Abstract: A primary pixel of interest within an image is processed by receiving colors, defining a plurality of pixels in a primary sub-neighborhood of pixels included within a neighborhood of pixels, into a processor. The primary pixel of interest is included within the primary sub-neighborhood. A determination is made if a border exists between first and second regions within the primary pixel of interest. If the border exists within the primary pixel of interest, a plurality of secondary sub-neighborhoods of pixels, which are included within the neighborhood and that potentially include the border, are determined. A determination is made if the border exists between the first and the second regions within respective secondary pixels of interest in the secondary sub-neighborhoods. If the border exists within a predetermined number of the pixels of interest, respective amounts of coverage for first and second colors are identified within a plurality of scaled up pixels corresponding to the primary pixel of interest. The scaled up pixels are displayed.

Abstract translation: 通过接收将包括在像素附近的像素的主子邻域中的多个像素定义为处理器的颜色来处理图像内感兴趣的主要像素。 感兴趣的主像素被包括在主子邻域内。 如果在感兴趣的主像素内的第一和第二区域之间存在边界，则确定。 如果边界存在于感兴趣的主像素内，则确定包括在邻域内并且潜在地包括边界的多个像素的辅助子邻域。 如果边界存在于辅助子邻域中感兴趣的次要像素中的第一和第二区域之间，则确定。 如果边界存在于感兴趣的像素的预定数目之内，则在对应于感兴趣的主要像素的多个按比例放大的像素内识别第一和第二颜色的相应的覆盖量。 显示放大像素。

公开(公告)号：US06353682B2

公开(公告)日：2002-03-05

申请号：US09154711

申请日：1998-09-17

Applicant: R. Victor Klassen

Inventor： R. Victor Klassen

IPC: G06K936

CPC classification number: G06T9/007

Abstract: This invention is a method and apparatus for processing compressed digital images. More particularly, this invention relates to methods and apparatus which accomplish rotation in conjunction with a variable-length decompression operation. A small amount of auxiliary information consisting of pointers to the starts of the scanlines is stored along with the DC coefficients in the decompressor, instead of the compressed image, to reduce the memory requirements for orthogonally rotating an image.

Abstract translation: 本发明是用于处理压缩数字图像的方法和装置。 更具体地，本发明涉及结合可变长度减压操作完成旋转的方法和装置。 将包含扫描线开头的指针组成的少量辅助信息与DC系数一起存储在解压缩器中，而不是压缩图像，以减少正交旋转图像的存储器需求。

公开(公告)号：US06324305B1

公开(公告)日：2001-11-27

申请号：US09218643

申请日：1998-12-22

Applicant: Thomas M. Holladay ,  Robert R. Buckley ,  R. Victor Klassen ,  Norman W. Zeck ,  Peter A. Crean

Inventor： Thomas M. Holladay ,  Robert R. Buckley ,  R. Victor Klassen ,  Norman W. Zeck ,  Peter A. Crean

IPC: G06K936

CPC classification number: G06K9/00456 ,  H04N1/41

Abstract: An improved technique for compressing a color or gray scale pixel map representing a document using an MRC format including a method of segmenting an original pixel map into two planes, and then compressing the data or each plane in an efficient manner. The image is segmented such that pixels that compress well under a lossy compression technique are placed on one plane and pixels that must be compressed losslessly are placed on another plane. Lossy compression is then applied to the lossy pixel plane while lossless compression is applied to the lossless pixel plane.

Abstract translation: 一种改进的技术，用于使用包括将原始像素图分割成两个平面的方法的MRC格式压缩表示文档的颜色或灰度像素图，然后以有效的方式压缩数据或每个平面。 图像被分割，使得在有损压缩技术下压缩的像素被放置在一个平面上，并且必须将无损压缩的像素放置在另一平面上。 然后将有损压缩应用于有损像素平面，同时将无损压缩应用于无损像素平面。