公开(公告)号：US06717700B1

公开(公告)日：2004-04-06

申请号：US09345740

申请日：1999-07-01

Applicant: Thomas A. Sanderson ,  Ying-wei Lin

Inventor： Thomas A. Sanderson ,  Ying-wei Lin

IPC: G06K936

CPC classification number: H04N1/407 ,  H04N1/40075

Abstract: A method and system which converts an electronic binary image to another electronic binary image by compensating for the differences between printer responses so that a target printer can print the image to emulate how the image would appear if printed by an originally-intended printer or another printer. A print-ready binary image is inputted into a print and scan simulation circuit which electronically simulates the printing and scanning of the image data. The print and scan simulation circuit converts the binary image data to gray scale image data. The gray scale image data is then processed by a tone response correction circuit. The tone response correction circuit alters the gray scale image data based on the difference between the tone reproduction curves of two printers, such as an originally-intended printer and a target printer. This changes the value of each pixel so that it ultimately yields the same density on the target printer when it is converted to binary form and printed as it would if the original binary image were printed on the originally-intended printer. This altered gray scale image data is then sent to a binarization circuit which converts the gray scale image data to a binary image. This binary image may then be sent to a printer, such as the target printer, so that the quality of the printed binary image simulates how it would have been printed on the originally intended printer.

Abstract translation: 通过补偿打印机响应之间的差异将电子二进制图像转换为另一电子二进制图像的方法和系统，使得目标打印机可以打印图像以模拟如果由原始打印机或另一打印机打印的图像将如何出现 。 打印准备的二进制图像被输入到电子模拟图像数据的打印和扫描的打印和扫描模拟电路中。 打印和扫描模拟电路将二进制图像数据转换为灰度图像数据。 然后灰度图像数据由色调响应校正电路处理。 色调响应校正电路基于原始打印机和目标打印机等两台打印机的色调再现曲线之间的差异来改变灰度图像数据。 这将改变每个像素的值，以便当目标打印机转换为二进制形式并打印时，它将最终产生相同的浓度，如果原始二进制图像打印在原始打印机上。 然后将该改变的灰度图像数据发送到将灰度图像数据转换为二进制图像的二值化电路。 然后可以将该二进制图像发送到诸如目标打印机的打印机，使得打印的二进制图像的质量模拟如何将其打印在原始打印机上。

公开(公告)号：US07031543B2

公开(公告)日：2006-04-18

申请号：US10032464

申请日：2002-01-02

Applicant: Hui Cheng ,  Ying-wei Lin ,  Stuart A. Schweid

Inventor： Hui Cheng ,  Ying-wei Lin ,  Stuart A. Schweid

IPC: G66K9/40

CPC classification number: G06T5/30 ,  G06T5/005 ,  G06T2207/10008

Abstract: An annular window-shaped structuring element is provided for image processing to remove speckles from a scanned image. The window-shaped structuring element is composed of two differently sized squares sharing the same geometric center-point. The pixel to be analyzed with the structuring element is at the center-point. The structuring element is used in a method to remove speckles from binary, grayscale, and/or color images by first eroding the image, detecting speckles relative to other pixels in the image, and removing declared speckles. The method may additionally include a halftoning module to protect halftone images.

公开(公告)号：US07009739B1

公开(公告)日：2006-03-07

申请号：US09699820

申请日：2000-10-30

Applicant: Ying-wei Lin ,  Jeng-nan Shiau

Inventor： Ying-wei Lin ,  Jeng-nan Shiau

IPC: H04N1/46

CPC classification number: H04N1/40012

Abstract: A continuously variable screening tool is used to generate a unique texture pattern for every color in a multicolor image. The continuously variable screening tool allows a single colorant version of the image to be generated with less information loss than typically suffered in the multicolor to single color transformation process. The continuously variable screening tool is generated by blending patterns from a set of reference screens. The reference screens are associated with selected reference colors in, for example, a machine independent color space. A calculated screen is generated through a weighted blend of reference screens located near the arbitrary color in the machine independent color space. Typically, the weights depend on the distance the arbitrary color is from each of the reference colors. The screens consist of arrays of threshold values. Each threshold value is associated with a dot position and an image pixel. Where a pixel value exceeds the associated threshold value, provision is made to place a mark in the associated dot position. An image processor operative to carry out the method comprises a continuously variable screening tool generator. An embodiment of the image processor includes a reference screen storage device and a screen blender.

Abstract translation: 使用连续可变的筛选工具为多色图像中的每种颜色生成独特的纹理图案。 连续可变的筛选工具允许以多色到单色转换过程中通常遭受的信息损失较少的信息生成图像的单一着色剂版本。 通过混合来自一组参考屏幕的图案来生成连续可变的筛选工具。 参考屏幕与例如机器独立颜色空间中的所选参考颜色相关联。 通过在机器独立颜色空间中位于任意颜色附近的参考屏幕的加权混合来生成计算屏幕。 通常，权重取决于任意颜色与每个参考颜色的距离。 屏幕由阈值阵列组成。 每个阈值与点位置和图像像素相关联。 如果像素值超过关联的阈值，则提供在相关联的点位置放置标记。 可操作地执行该方法的图像处理器包括连续可变的筛选工具发生器。 图像处理器的实施例包括参考屏幕存储设备和屏幕搅拌器。

公开(公告)号：US5029020A

公开(公告)日：1991-07-02

申请号：US437730

申请日：1989-11-17

Applicant: Paul D. Norder ,  Jagdish C. Tandon ,  Ying-wei Lin ,  Anthony F. Calarco

Inventor： Paul D. Norder ,  Jagdish C. Tandon ,  Ying-wei Lin ,  Anthony F. Calarco

IPC: H04N1/028 ,  H04N1/04 ,  H04N1/10 ,  H04N1/107 ,  H04N1/19 ,  H04N1/191

CPC classification number: H04N1/1911 ,  H04N2201/0414 ,  H04N2201/0468

Abstract: A scanner-printer of the type that scans and prints in blocks, each block consisting of a preset number of image lines, in which the block of lines scanned by the scanning array is larger than the block of lines printed by a printing array so that there is provided additional image scan lines before and after each block of image lines printed, the additional image scan lines providing image context data for use in processing image signals adjacent the boundaries between blocks of image lines.

公开(公告)号：US06983068B2

公开(公告)日：2006-01-03

申请号：US09965922

申请日：2001-09-28

Applicant: Salil Prabhakar ,  Hui Cheng ,  Zhigang Fan ,  John C. Handley ,  Ying-wei Lin

Inventor： Salil Prabhakar ,  Hui Cheng ,  Zhigang Fan ,  John C. Handley ,  Ying-wei Lin

IPC: G06K9/00

CPC classification number: G06K9/00456

Abstract: A method and system for image processing, in conjunction with classification of images between natural pictures and synthetic graphics, using SGLD texture (e.g., variance, bias, skewness, and fitness), color discreteness (e.g., R—L, R—U, and R—V normalized histograms), or edge features (e.g., pixels per detected edge, horizontal edges, and vertical edges) is provided. In another embodiment, a picture/graphics classifier using combinations of SGLD texture, color discreteness, and edge features is provided. In still another embodiment, a “soft” image classifier using combinations of two (2) or more SGLD texture, color discreteness, and edge features is provided. The “soft” classifier uses image features to classify areas of an input image in picture, graphics, or fuzzy classes.

Abstract translation: 一种用于图像处理的方法和系统，结合使用SGLD纹理（例如，方差，偏差，偏度和适应度）的自然图像和合成图像之间的图像分类，颜色离散性（例如，R SUB 提供了一个或多个边缘特征（例如每个检测到的边缘，水平边缘和垂直边缘的像素）。 在另一个实施例中，提供了使用SGLD纹理，颜色离散性和边缘特征的组合的图片/图形分类器。 在另一个实施例中，提供了使用两（2）或更多SGLD纹理，颜色离散性和边缘特征的组合的“软”图像分类器。 “软”分类器使用图像特征来对图像，图形或模糊类中的输入图像的区域进行分类。

公开(公告)号：US06297889B1

公开(公告)日：2001-10-02

申请号：US09218688

申请日：1998-12-22

Applicant: Robert P. Loce ,  Michael Branciforte ,  Ying-wei Lin

Inventor： Robert P. Loce ,  Michael Branciforte ,  Ying-wei Lin

IPC: G06K1502

CPC classification number: G06T5/20 ,  H04N1/58

Abstract: A method for processing digital images to be displayed, stored, or printed, to eliminate blooming and other artifacts. The system utilizes morphological processes to isolate and modify image structures susceptible to marking process artifacts and then combines the modified image structures with the input image to produce a printable image that may be rendered on a given printer.

Abstract translation: 一种用于处理要显示，存储或打印的数字图像的方法，以消除起霜和其他伪像。 该系统利用形态学过程来分离和修改易受标记过程伪像影响的图像结构，然后将修改的图像结构与输入图像组合，以产生可在给定打印机上呈现的可打印图像。

公开(公告)号：US5740334A

公开(公告)日：1998-04-14

申请号：US674178

申请日：1996-07-01

Applicant: Ying-wei Lin ,  Katherine Loj

Inventor： Ying-wei Lin ,  Katherine Loj

IPC: B41J5/30 ,  H04N1/46 ,  H04N1/52 ,  H04N1/60

CPC classification number: H04N1/52

Abstract: The present invention is a method and apparatus for reducing two-color moire often found during the rendering of full color images using halftoning techniques. The invention relies upon the application of a non-periodic halftone operation to the least perceptible color separation (e.g., yellow) so as to prevent the formation of periodic structures due to the interaction of the yellow colorant with one of the other colorants (e.g., cyan or magenta).

Abstract translation: 本发明是一种用于减少在使用半色调技术渲染全色图像期间经常发现的双色莫尔+ E，acu e + EE的方法和装置。 本发明依赖于将非周期性半色调操作应用于最不可察觉的颜色分离（例如，黄色），以便防止由于黄色着色剂与其它着色剂之一的相互作用而形成周期性结构（例如， 青色或品红色）。

公开(公告)号：US5689343A

公开(公告)日：1997-11-18

申请号：US451376

申请日：1995-05-26

Applicant: Robert P. Loce ,  Ronald E. Jodoin ,  Ying-wei Lin

Inventor： Robert P. Loce ,  Ronald E. Jodoin ,  Ying-wei Lin

IPC: H04N1/387 ,  G06T3/40 ,  G06T5/00 ,  H04N1/393 ,  H04N1/40 ,  G06K9/42 ,  G06K9/62 ,  G06K15/00

CPC classification number: G06T3/4023 ,  H04N1/40068

Abstract: A method and apparatus for converting the resolution of an input image to a higher resolution that is a noninteger multiple of the input resolution. The method and apparatus employ either an interlocked or noninterlocked clustering arrangement of output pixels in order to assign to each output pixel a reference value determined from the signal levels of the input image. In addition, the method and apparatus include a template-based enhancement filter to further refine modify or alter the assigned signal level prior to its output as a higher resolution image.

Abstract translation: 一种用于将输入图像的分辨率转换为作为输入分辨率的非整数倍的较高分辨率的方法和装置。 该方法和装置采用输出像素的互锁或非嵌入式聚类布置，以便根据输入图像的信号电平来确定每个输出像素的参考值。 此外，该方法和装置还包括基于模板的增强滤波器，以进一步改进或改变其输出之前的分配信号电平作为较高分辨率图像。

公开(公告)号：US5086485A

公开(公告)日：1992-02-04

申请号：US599831

申请日：1990-10-19

Applicant: Ying-wei Lin

Inventor： Ying-wei Lin

IPC: H04N1/403 ,  G06K9/38 ,  G06T1/00 ,  G06T5/40 ,  H04N1/407

CPC classification number: G06K9/38 ,  H04N1/4074

Abstract: An apparatus for determining a background level of an image to be scanned. The apparatus builds a series of histograms of the image each corresponding to a line of the image, analyzes each of the histograms, and averages the results of the analysis, to continually update a background level during the scan of the image. The apparatus may be implemented with a simple architecture capable of operating at high speed.

Abstract translation: 一种用于确定要扫描的图像的背景水平的装置。 该装置构建一系列与图像行对应的图像的直方图，分析每个直方图，并平均分析结果，以在扫描图像期间不断更新背景水平。 该装置可以用能够高速运行的简单架构来实现。

公开(公告)号：US07119924B2

公开(公告)日：2006-10-10

申请号：US09966030

申请日：2001-09-28

Applicant: Salil Prabhakar ,  Raja Bala ,  Hui Cheng ,  John C. Handley ,  Ying-wei Lin

Inventor： Salil Prabhakar ,  Raja Bala ,  Hui Cheng ,  John C. Handley ,  Ying-wei Lin

IPC: G06F15/00

CPC classification number: G06T7/90 ,  G06T7/11 ,  G06T2207/30176

Abstract: A process for color graphics image processing, related to detection and segmentation of sweeps, is provided. An input graphics image is transformed into a three-dimensional histogram in an appropriate color space 104 (e.g., CIELUV). Two-dimensional histograms are estimated from the three-dimensional histogram 106. The two-dimensional histograms are processed to detect and segment sweeps 108. Sweep segment information from the processing of the two-dimensional histograms is combined 110. The combined sweep segment information is used to process the input graphics image to identify and segment sweeps 112. Post-processing may be optionally and selectively used to reject false alarms (i.e., areas falsely identified as sweeps) 114.