公开(公告)号：US07009739B1

公开(公告)日：2006-03-07

申请号：US09699820

申请日：2000-10-30

申请人： Ying-wei Lin ,  Jeng-nan Shiau

发明人： Ying-wei Lin ,  Jeng-nan Shiau

IPC分类号： H04N1/46

CPC分类号： H04N1/40012

摘要： 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.

摘要翻译： 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：US06947597B2

公开(公告)日：2005-09-20

申请号：US09965880

申请日：2001-09-28

申请人： Ying-wei Lin ,  Stuart A. Schweid ,  Jeng-nan Shiau ,  Raja Bala ,  Zhigang Fan

发明人： Ying-wei Lin ,  Stuart A. Schweid ,  Jeng-nan Shiau ,  Raja Bala ,  Zhigang Fan

IPC分类号： G06K9/20 ,  G06T5/00 ,  H04N1/40 ,  G06K9/62

CPC分类号： H04N1/40062 ,  G06K9/00456

摘要： 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.

摘要翻译： 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_L，R_U和R_V归一化直方图 ）或边缘特征（例如，每个检测到的边缘的像素，水平边缘和垂直边缘）。 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：US5553171A

公开(公告)日：1996-09-03

申请号：US507064

申请日：1995-07-26

申请人： Ying-wei Lin ,  Jeng-Nan Shiau

发明人： Ying-wei Lin ,  Jeng-Nan Shiau

IPC分类号： H04N1/387 ,  G06T3/40 ,  G06T5/20 ,  H04N1/40 ,  G06K9/36

CPC分类号： G06T3/4007 ,  H04N1/40068

摘要： A method of arbitrary image resolution conversion takes an original print ready image at a first resolution and orientation and simulates printing of that image by creating a representation of a page at a particular resolution and orientation using a suitable spot model for the reconstruction function. The image is then filtered with a low pass filter and sampled with an aperture that corresponds to the desired output. The image data, which may be definable at several bits per pixel, is then made print-ready by reducing the number of bits defining each pixel to a valid output state. The reduction step is accomplished through error diffusion methods that maintain the local area gray density level. The filtering step reduces moire in the converted image.

摘要翻译： 任意图像分辨率转换的方法以第一分辨率和方向获取原始打印准备好的图像，并且通过使用用于重建功能的合适的斑点模型以特定分辨率和取向创建页面的表示来模拟该图像的打印。 然后用低通滤波器过滤图像，并用对应于期望输出的孔进行采样。 然后，可以通过将每个像素的几个比特定义的图像数据通过将定义每个像素的比特数减少到有效输出状态来进行打印准备。 还原步骤通过维持局部区域灰度密度水平的误差扩散方法来实现。 过滤步骤减少转换图像中的莫尔条纹。

公开(公告)号：US07239430B2

公开(公告)日：2007-07-03

申请号：US10318614

申请日：2002-12-12

申请人： Jeng-nan Shiau ,  Ying-wei Lin

发明人： Jeng-nan Shiau ,  Ying-wei Lin

IPC分类号： H04N1/405

CPC分类号： G06K9/00456 ,  H04N1/40062 ,  H04N1/405

摘要： A method to detect frequency and angle of a binary halftone pattern. The method employs an exclusive-or operation which is applied locally to a region of a binary bit map and its spatially shifted version. The resulting bits from the exclusive-or operation are summed over the region. The exclusive-or operation is repeated for a range of shift values. In a halftone region, the shift at which the minimum sum occurs reflects the angle and the frequency of the halftone.

摘要翻译： 检测二进制半色调图案的频率和角度的方法。 该方法采用本地应用于二进制位图及其空间位移版本的区域的异或运算。 来自独占或操作的结果位在该区域相加。 对一系列移位值重复执行异或操作。 在半色调区域中，最小和发生的偏移反映了半色调的角度和频率。

公开(公告)号：US07031543B2

公开(公告)日：2006-04-18

申请号：US10032464

申请日：2002-01-02

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

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

IPC分类号： G66K9/40

CPC分类号： G06T5/30 ,  G06T5/005 ,  G06T2207/10008

摘要： 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：US5029020A

公开(公告)日：1991-07-02

申请号：US437730

申请日：1989-11-17

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

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

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

CPC分类号： H04N1/1911 ,  H04N2201/0414 ,  H04N2201/0468

摘要： 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

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

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

IPC分类号： G06K9/00

CPC分类号： G06K9/00456

摘要： 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.

摘要翻译： 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

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

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

IPC分类号： G06K1502

CPC分类号： G06T5/20 ,  H04N1/58

摘要： 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.

摘要翻译： 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

申请人： Ying-wei Lin ,  Katherine Loj

发明人： Ying-wei Lin ,  Katherine Loj

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

CPC分类号： H04N1/52

摘要： 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).

摘要翻译： 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

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

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

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

CPC分类号： G06T3/4023 ,  H04N1/40068

摘要： 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.

摘要翻译： 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。