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：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：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.

公开(公告)号：US07006256B2

公开(公告)日：2006-02-28

申请号：US09683540

申请日：2002-01-16

Applicant: Shen-ge Wang ,  Hui Cheng ,  Zhigang Fan ,  Ying-wei Lin

Inventor： Shen-ge Wang ,  Hui Cheng ,  Zhigang Fan ,  Ying-wei Lin

IPC: H04N1/46

CPC classification number: G06T1/0028 ,  G06T2201/0051 ,  G06T2201/0061 ,  H04N1/32203 ,  H04N1/32208 ,  H04N1/32256 ,  H04N2201/3233 ,  H04N2201/327

Abstract: A watermarked image generator includes a watermark data source that inputs watermark data to a watermark embedding device. The watermark embedding device halftones the input image to generate the output image made of 2×2 binary patterns, the 2×2 binary patterns forming the watermarks embedded in the output image. The watermark embedding device includes a tri-level error diffusion generator that performs tri-level error diffusion on the input image by halftoning the input image into black, white and 50% gray. A plurality of halftoning circuits successively replace each pixel of the halftoned input image with one of a plurality of the 2×2 binary patterns. The one of the plurality of 2×2 binary patterns corresponds to at least one respective bit of the watermark data when a pixel of the halftoned image data is 50% gray. The watermark data can be segmentation map data of the input image.

公开(公告)号：US07218332B2

公开(公告)日：2007-05-15

申请号：US10135139

申请日：2002-04-30

Applicant: Hui Cheng ,  Ying-wei Lin

Inventor： Hui Cheng ,  Ying-wei Lin

IPC: G06T15/00

CPC classification number: H04N1/00 ,  G06T11/00 ,  H04N1/00798

Abstract: Systems and methods are presented for processing and rendering image data during a single pass through the image data. A method includes loading scanlines of image data into a rolling band buffer, performing a windowing technique on the image data, and determining if a class change was experienced by any window having a portion in an output scanline of the buffer. The method further includes processing image data in the output scanline for a window portion that experienced a class change, using a blended rendering algorithm. If no class change is detected, the method includes processing image data in the output scanline for the window portion using a class-based rendering algorithm. The method optionally includes rendering processed image data for the output scanline to a rendering device. According to other features, an apparatus includes a rolling band buffer, a windowing processor, class-based rendering algorithms, and a blended rendering algorithm.

Abstract translation: 呈现系统和方法，用于在单次传递图像数据期间处理和渲染图像数据。 一种方法包括将图像数据的扫描线加载到滚动带缓冲器中，对图像数据执行加窗技术，以及确定是否由具有缓冲器的输出扫描线中的一部分的任何窗口经历了类别改变。 该方法还包括使用混合渲染算法来处理经历类别改变的窗口部分的输出扫描线中的图像数据。 如果没有检测到类更改，则该方法包括使用基于类的呈现算法来处理窗口部分的输出扫描线中的图像数据。 该方法可选地包括将处理的输出扫描线的图像数据渲染到呈现设备。 根据其他特征，一种装置包括滚动带缓冲器，加窗处理器，基于类的渲染算法和混合渲染算法。

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：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。