公开(公告)号：US08224112B2

公开(公告)日：2012-07-17

申请号：US12480247

申请日：2009-06-08

Applicant: Peter McCandlish ,  Xing Li ,  Ryan Metcalfe ,  Barbara Farrell

Inventor： Peter McCandlish ,  Xing Li ,  Ryan Metcalfe ,  Barbara Farrell

IPC: G06K9/40

CPC classification number: G06K9/4604

Abstract: Disclosed herein is a method for detecting thin lines in image data. The method is performed by a processor to process contone image data. The processing includes thresholding a window of pixels using a first set of thresholds established in the contone domain, and then counting and thresholding the binary pixels using a second set of thresholds. The processing in the contone and binary domain are used to determine if a thin line exists and if a pixel of interest in the window is an edge pixel that is part of a thin line. The disclosed method produces better quality output images and reduces the addition of false lines in an image.

Abstract translation: 这里公开了一种用于检测图像数据中的细线的方法。 该方法由处理器执行以处理连续色调图像数据。 该处理包括使用在连续色域中建立的第一组阈值阈值化像素窗口，然后使用第二组阈值计数和阈值二进制像素。 连续词和二进制域中的处理用于确定细线是否存在，并且窗口中感兴趣的像素是作为细线一部分的边缘像素。 所公开的方法产生更好质量的输出图像并且减少图像中虚线的添加。

公开(公告)号：US20120039534A1

公开(公告)日：2012-02-16

申请号：US12853831

申请日：2010-08-10

Applicant: Amal Z. Malik ,  Clara Cuciurean-Zapan ,  Xing Li

Inventor： Amal Z. Malik ,  Clara Cuciurean-Zapan ,  Xing Li

IPC: G06K9/36 ,  G06K9/34

CPC classification number: H04N1/3333 ,  H03M7/3064 ,  H03M7/607 ,  H03M7/6082 ,  H04N2201/33357

Abstract: Disclosed is a processor-implemented method for processing image data comprising a plurality of pixels and system for performing the method. The method includes the following acts: determining at least one type of data represented by the plurality of pixels, determining, for each type of data, a number of pixels from the image data representing that type of data in the image data, and determining a compression scheme for compressing the image data based on a relative or absolute amount of each type of data in accordance with a predetermined scheme. The type of data may be determined by received input (e.g., user selected type and compression quality) or by analyzing its pixels and comparing it to thresholds. Basing the compression technique on the data type allows for better selection of a compression technique (e.g., MRC or JPEG), and thus greater image quality, compression ratios, and file size.

Abstract translation: 公开了一种用于处理包括多个像素的图像数据的处理器实现的方法和用于执行该方法的系统。 该方法包括以下动作：确定由多个像素表示的至少一种类型的数据，对于每种类型的数据，从表示图像数据中的该类型的数据的图像数据中确定一数量的像素，并且确定 压缩方案，用于根据预定方案基于每种类型的数据的相对或绝对量压缩图像数据。 数据的类型可以由接收的输入（例如，用户选择的类型和压缩质量）或通过分析其像素并将其与阈值进行比较来确定。 基于数据类型的压缩技术可以更好地选择压缩技术（例如，MRC或JPEG），从而更好地选择图像质量，压缩比和文件大小。

公开(公告)号：US07933470B2

公开(公告)日：2011-04-26

申请号：US12139865

申请日：2008-06-16

Applicant: John C. Handley ,  André M. Blaakman ,  Anthony P. Lanza ,  Francis Kapo Tse ,  Xing Li ,  Aron Nacman ,  David J. Lieberman

Inventor： John C. Handley ,  André M. Blaakman ,  Anthony P. Lanza ,  Francis Kapo Tse ,  Xing Li ,  Aron Nacman ,  David J. Lieberman

IPC: G06K9/40

CPC classification number: H04N1/40037 ,  H04N1/4092

Abstract: The present invention is a method and apparatus for processing image data to accomplish tuning or adjustment of images, so as to modify at least the darkness thereof, using compact, efficient methods and designs.

Abstract translation: 本发明是用于处理图像数据以完成图像调谐或调整的方法和装置，以便使用紧凑，有效的方法和设计来至少修改其暗度。

公开(公告)号：US07894683B2

公开(公告)日：2011-02-22

申请号：US12606523

申请日：2009-10-27

Applicant: Ramesh Nagarajan ,  Francis Kapo Tse ,  Xing Li

Inventor： Ramesh Nagarajan ,  Francis Kapo Tse ,  Xing Li

IPC: G06K9/36

CPC classification number: H04N1/41 ,  G06K9/00456

Abstract: In various exemplary embodiments, systems include a segmentor to segment text binary image data to a first plane. A subtractor subtracts text binary image from binary image data to generate a non-text binary image data in a second plane. A converter converts non-text binary image data in the second plane into non-text gray scale image data in the second plane. A first compressor compresses the text gray scale image data in the first plane. A second compressor compresses the non-text gray scale image in the second plane.

Abstract translation: 在各种示例性实施例中，系统包括用于将文本二进制图像数据分割到第一平面的分段器。 减法器从二进制图像数据中减去文本二进制图像，以在第二平面中生成非文本二进制图像数据。 A转换器将第二平面中的非文本二进制图像数据转换成第二平面中的非文本灰度图像数据。 第一压缩器压缩第一平面中的文本灰度图像数据。 第二压缩机压缩第二平面中的非文本灰度图像。

公开(公告)号：US07843616B2

公开(公告)日：2010-11-30

申请号：US12056395

申请日：2008-03-27

Applicant: Xing Li

Inventor： Xing Li

IPC: G03F3/08 ,  G06F15/00 ,  G06K9/64

CPC classification number: H04N1/4072 ,  H04N1/6005 ,  H04N1/6094

Abstract: What is disclosed is a novel system and method for background suppression in the image path. In one example embodiment, an image is scanned and RGB color values generated for each pixel. Each of the pixels is converted into a Lab color space to obtain luminance and chrominance values. A background luminance and a luminance variation are determined for the scanned image. For each pixel, a determination is made whether that pixel is a white pixel or a non-white pixel based. If the pixel is a white pixel, an adjustment chrominance value for that pixel is determined. The value of the chrominance adjustment is modulated as a function of a difference between the white pixel's luminance and the background luminance. The modulated chrominance adjustment is applied to the white pixel. Adjusted and non-adjusted pixels are stored in a memory. A printer controller converts the pixels to an output space.

Abstract translation: 公开的是用于图像路径中的背景抑制的新型系统和方法。 在一个示例实施例中，扫描图像并为每个像素生成RGB颜色值。 每个像素被转换成Lab颜色空间以获得亮度和色度值。 确定扫描图像的背景亮度和亮度变化。 对于每个像素，确定该像素是基于白色像素还是非白色像素。 如果像素是白色像素，则确定该像素的调整色度值。 色度调整的值被调制为白色像素的亮度和背景亮度之间的差的函数。 调制色度调整被应用于白色像素。 调整和未调整的像素存储在存储器中。 打印机控制器将像素转换为输出空间。

公开(公告)号：US20090195799A1

公开(公告)日：2009-08-06

申请号：US12025972

申请日：2008-02-05

Applicant: AMAL ZAKA MALIK ,  Xing Li

Inventor： AMAL ZAKA MALIK ,  Xing Li

IPC: H04N1/60

CPC classification number: H04N1/60

Abstract: What is provided are a novel system, method, and computer program product for estimating the amount of color in a document to be printed, with the capability to handle composite black. A color billing strategy can be dynamically determined based on the amount of color in the document. In one embodiment, a contone CMYK image is examined and the level of color is estimated based on information extracted from the four planes simultaneously. More specifically, it examines the pixel values from all the four planes to calculate the number of white, black, color, and gray or neutral pixel counts. Input CMYK values can be pre-adjusted via a look-up table to take into account neutral balance characteristics. The difference among the adjusted color values is compared against a threshold that is input level dependent. Color is further subdivided into fuzzy colors to handle highlights and neutral areas.

Abstract translation: 提供了一种新颖的系统，方法和计算机程序产品，用于估计要打印的文档中的颜色量，具有处理复合黑色的能力。 可以基于文档中的颜色量动态地确定颜色计费策略。 在一个实施例中，检查连续色调CMYK图像，并且基于同时从四个平面中提取的信息来估计颜色的等级。 更具体地，它检查来自所有四个平面的像素值，以计算白色，黑色，彩色和灰色或中性像素计数的数量。 输入CMYK值可以通过查找表预先调整，以考虑中性平衡特征。 将调整后的颜色值之间的差异与输入水平相关的阈值进行比较。 颜色进一步细分为模糊颜色以处理高光和中性区域。

公开(公告)号：US07555172B2

公开(公告)日：2009-06-30

申请号：US11263249

申请日：2005-10-31

Applicant: Ammal Malik ,  Xing Li ,  Ramesh Nagarajan

Inventor： Ammal Malik ,  Xing Li ,  Ramesh Nagarajan

IPC: G06K9/32

CPC classification number: H04N1/38 ,  G06K9/38 ,  G06K2209/01 ,  H04N1/403

Abstract: An original image is received. The original image is divided into tiles. A whitepoint value of each tile is determined. A blackpoint value of each tile is determined. A whitepoint value of each pixel in the image is determined by interpolating the determined whitepoint values of neighboring tiles. A blackpoint of each pixel in the image is determined by interpolating the determined blackpoint values of neighboring tiles.

Abstract translation: 收到原始图像。 原始图像分为瓷砖。 确定每个瓦片的白色点值。 确定每个瓦片的黑点值。 图像中每个像素的白点值通过内插确定的相邻瓦片的白点值来确定。 通过内插确定的相邻瓦片的黑点值来确定图像中每个像素的黑点。

公开(公告)号：US20080247666A1

公开(公告)日：2008-10-09

申请号：US12139865

申请日：2008-06-16

Applicant: John C. Handley ,  Andre Blaakman ,  Anthony Lanza ,  Francis Tse ,  Xing Li ,  Aron Nacman ,  David J. Lieberman

Inventor： John C. Handley ,  Andre Blaakman ,  Anthony Lanza ,  Francis Tse ,  Xing Li ,  Aron Nacman ,  David J. Lieberman

IPC: G06K9/40

CPC classification number: H04N1/40037 ,  H04N1/4092

Abstract: The present invention is a method and apparatus for processing image data to accomplish tuning or adjustment of images, so as to modify at least the darkness thereof, using compact, efficient methods and designs.

Abstract translation: 本发明是用于处理图像数据以完成图像调谐或调整的方法和装置，以便使用紧凑，有效的方法和设计来至少修改其暗度。

公开(公告)号：US07421143B2

公开(公告)日：2008-09-02

申请号：US10709832

申请日：2004-06-01

Applicant: Xing Li ,  Stuart A. Schweid ,  Jeng-nan Shiau

Inventor： Xing Li ,  Stuart A. Schweid ,  Jeng-nan Shiau

IPC: G06K9/40

CPC classification number: H04N1/40062 ,  H04N1/4072

Abstract: A method for dynamic range adjustment of image data of a captured image by determining a white point of an image. The method also involves determining a black point of the image, classifying pixels of the image, and determining an offset value for a pixel of the image based on the determined black point of the image and the determined classification of the pixel. Dynamic range adjustment of the image data is performed using the determined offset value for the pixels of the image and the determined white point of the image.

Abstract translation: 通过确定图像的白点来对拍摄图像的图像数据进行动态范围调整的方法。 该方法还包括确定图像的黑点，对图像的像素进行分类，以及基于确定的图像的黑点和所确定的像素的分类来确定图像的像素的偏移值。 使用确定的图像的像素的偏移值和确定的图像的白点来执行图像数据的动态范围调整。

公开(公告)号：US07302097B2

公开(公告)日：2007-11-27

申请号：US10941411

申请日：2004-09-15

Applicant: Yingjun Bai ,  Ramesh Nagarajan ,  Xing Li

Inventor： Yingjun Bai ,  Ramesh Nagarajan ,  Xing Li

IPC: G06K9/00

CPC classification number: G06K9/00456

Abstract: A method of processing an MRC image file, comprising at least a mask plane and a background plane, comprises determining that at least one of the mask plane and background plane is substantially empty; and effectively removing the substantially empty plane from the file for further processing.

Abstract translation: 一种处理MRC图像文件的方法，包括至少掩模平面和背景平面，包括确定所述掩模平面和背景平面中的至少一个基本上为空; 并且有效地从文件中移除基本上空的平面用于进一步处理。