公开(公告)号：US20030048461A1

公开(公告)日：2003-03-13

申请号：US09941819

申请日：2001-08-29

发明人： David R. Larson

IPC分类号： G06T005/00 ,  H04N001/407 ,  H04N001/409 ,  H04N001/58

CPC分类号： H04N1/407

摘要： Document processing systems for modifying image data are provided. A representative document processing system includes an image enhancement system that is configured to receive image data as well as information corresponding to a request for modification of the image data. In response to the request, the image enhancement system modifies the image data, such as by increasing contrast between the foreground component and the background component and altering lightness of both the foreground component and the background component. Methods and other systems also are provided.

摘要翻译： 提供用于修改图像数据的文档处理系统。 代表性文件处理系统包括图像增强系统，其被配置为接收图像数据以及与图像数据的修改请求对应的信息。 响应于该请求，图像增强系统例如通过增加前景分量和背景分量之间的对比度并改变前景分量和背景分量的亮度来修改图像数据。 还提供了方法和其它系统。

公开(公告)号：US20030044080A1

公开(公告)日：2003-03-06

申请号：US10234395

申请日：2002-09-05

申请人： EMBLAZE SYSTEMS LTD

发明人： Eyal Frishman ,  Tamir Sagi ,  Noam Oren

IPC分类号： G06T005/00 ,  H04N001/409 ,  H04N007/64

CPC分类号： G06T5/20 ,  G06T5/002 ,  G06T2207/20012 ,  G06T2207/20021 ,  G06T2207/20192 ,  H04N19/117 ,  H04N19/14 ,  H04N19/17 ,  H04N19/176 ,  H04N19/527 ,  H04N19/60 ,  H04N19/61 ,  H04N19/80 ,  H04N19/86

摘要： A method for removing blocking artifacts from moving and still pictures, comprising classifying horizontal and vertical boundaries in each picture as blocky or non-blocky; for each blocky boundary, defining an adaptive, picture content-dependent, one-dimensional filtered pixels region of interest (ROI) that crosses the boundary and is bound at each of its ends by a bounding pixel; defining a finite filter having a length correlated with the length of the ROI; defining a filtering pixels expansion that uniquely determines the padding values of the finite length filtered pixels ROI for the finite length filtering; and filtering the ROI pixels using the finite filter and the filtering expansion.

摘要翻译： 一种用于从移动和静态图像中去除块伪影的方法，包括将每个图像中的水平和垂直边界分类为块状或非块状; 对于每个块状边界，定义穿过边界的自适应，依赖于图像内容的一维滤波像素区域（ROI），并且通过边界像素在其每个端点处被绑定; 定义具有与ROI的长度相关联的长度的有限滤波器; 定义滤波像素扩展，其唯一地确定有限长度滤波像素ROI的填充值用于有限长度滤波; 并使用有限过滤器和过滤扩展过滤ROI像素。

公开(公告)号：US20030021489A1

公开(公告)日：2003-01-30

申请号：US10193306

申请日：2002-07-12

申请人： SEIKO EPSON CORPORATION

发明人： Hirotsuna Miura ,  Masaki Ishikawa

IPC分类号： G06K009/40 ,  G06T005/00 ,  H04N001/409 ,  H04N005/21

CPC分类号： G06T5/002 ,  G06T5/20 ,  G06T2207/10024 ,  H04N19/527 ,  H04N19/86

摘要： An image processor is provided which simplifies filter processing and increases the speed when an image is decoded, and is suitable for realizing effective screen effect. In deblocking filter processing, as to a pixel array intersecting a boundary between adjacent blocks, pixel values v2null to v7null after filtering are computed by filter arithmetic equations as shown below. v2nullnull(v2nullv5)/2null(v2nullv5)/4 v3nullnull(v3nullv5)/2null(v3nullv5)/8 v4nullnull(v4nullv5)/2 v5nullnull(v5nullv4)/2null(v5nullv4)/8 v6nullnull(v6nullv4)/2null(v6nullv4)/4 v7nullnull(v7null(v7nullv4)/8

摘要翻译： 提供了一种图像处理器，其简化了滤波处理，并且在解码图像时提高了速度，并且适合于实现有效的屏幕效果。 在去块滤波处理中，对于与相邻块之间的边界相交的像素阵列，滤波后的像素值v2'至v7'由如下所示的滤波算术方程计算。 <段落lvl =“0”> v2'=（v2 + v5）/ 2 +（v2-v5）/ 4 < in-line-formula> v3'=（v3 + v5）/ 2 +（v3-v5）/ 8 <段落lvl =“0”> v4'= （v4 + v5）/ 2 <段落lvl =“0”> v5'=（v5 + v4）/ 2 +（v5-v4） in-line-formula> v6'=（v6 + v4）/ 2 +（v6-v4）/ 4 <段落lvl =“0”> v7'=（v7-（v7-v4）/ 8

公开(公告)号：US20030012452A1

公开(公告)日：2003-01-16

申请号：US09900479

申请日：2001-07-06

申请人： JASC Software, Inc.

发明人： Mikhail Ivanovich Trifonov ,  Olga Vadimovna Sharonova ,  Krzysztof Antoni Zaklika

IPC分类号： G06T005/00 ,  G06K009/36 ,  G06T007/00 ,  H04N001/409 ,  G06K009/46

CPC分类号： G06T5/005 ,  G06T5/20 ,  H04N1/4097

摘要： Line defects are removed from an image by providing image data in digital form, analyzing segments of the image data as groups of pixels, detecting line defects in the image by application of a line detector, such as a local radial angular transform, and adjusting the image data to correct the detected line defects within the determined limits.

摘要翻译： 通过以数字形式提供图像数据，将图像数据的分段分析为像素组，通过应用线检测器（例如局部径向角变换）来检测图像中的线缺陷，并且调整 图像数据，以校正所确定的限制内检测到的线路缺陷。

公开(公告)号：US20030007187A1

公开(公告)日：2003-01-09

申请号：US09681967

申请日：2001-06-29

发明人： Douglas N. Curry

IPC分类号： H04N001/405 ,  H04N001/409 ,  H04N001/52 ,  H04N001/58 ,  G06T005/00 ,  G06T007/00

CPC分类号： H04N1/4055

摘要： The result of integrating a halftone dot-shape can be clustered. When the edge of the halftone dot-shape extends across a nullverticalnull edge of a window, the window is altered until the edge of the halftone dot-shape no longer crosses either vertical edge of the altered window. The image density of the portion of the halftone dot-shape contained within the altered window is determined. The block of image density of the portion of the halftone dot shape contained within the altered window is aligned with the right edge, the left edge, split between the left and right edges, or clustered in the nullcenternull of the altered window. An amount of the determined block that extends into the original sample window is determined. This amount extending into the original window determines the amount of image density to be generated in the final output image based on that sample location of the window.

摘要翻译： 集成半色调点形状的结果可以聚类。 当半色调点形的边缘延伸穿过窗口的“垂直”边缘时，窗口被改变，直到半色调点形状的边缘不再穿过改变的窗口的任何一个垂直边缘。 确定包含在改变的窗口内的半色调点形状的部分的图像浓度。 包含在改变的窗口内的半色调点形状的部分的图像密度块与右边缘，左边缘在左边缘和右边缘之间分开对齐，或者聚集在改变的窗口的“中心”中。 确定延伸到原始样本窗口中的确定块的量。 延伸到原始窗口的量决定了基于窗口的样本位置在最终输出图像中生成的图像密度的量。

公开(公告)号：US20030007183A1

公开(公告)日：2003-01-09

申请号：US10187950

申请日：2002-07-03

发明人： Terukazu Ishiguro

IPC分类号： G06T005/00 ,  G06K009/40 ,  G06K009/34 ,  H04N001/407 ,  H04N001/409

CPC分类号： G06T5/20 ,  G06K9/34 ,  G06K2209/01 ,  G06T5/002 ,  G06T5/003 ,  G06T7/12 ,  G06T7/194 ,  G06T2200/28 ,  G06T2207/20012 ,  G06T2207/20192 ,  G06T2207/30176 ,  H04N1/4092

摘要： There is provided an image processing apparatus, image processing method, and a program product for image processing capable of reproducing character images against a background region clearly without white framed areas or turbid areas. An MTF corrector 21 includes a lightness-change controller 113. The lightness-change controller 113 is constituted by two AND circuits 114, 115 and a lightness-change filter 116. In the AND circuit 114, there are inputted a character-region against halftone solid-region signal (_BETA_MOJI) and an inversed signal of a character-region-discrimination inner edge signal (_INEDG). On the other hand, in the AND circuit 115, there are inputted a character-region against halftone-dot-region signal (_AMI_MOJI) and an inversed signal of a character-region-discrimination inner edge signal (_INEDG). Output signals from the AND circuits 114 and 115 are inputted to the lightness-change filter 116. In the lightness-change filter 116, lightness of a target pixel is changed from its inherent lightness to average lightness of a background region adjoining the target pixel.

摘要翻译： 提供了一种用于图像处理的图像处理装置，图像处理方法和程序产品，其能够清晰地再现背景区域的字符图像，而没有白框区域或混浊区域。 MTF校正器21包括亮度变化控制器113.亮度变化控制器113由两个AND电路114,115和亮度变换滤波器116构成。在AND电路114中，输入针对半色调的字符区域 固体区域信号（_BETA_MOJI）和字符区域鉴别内部边缘信号（_INEDG）的反相信号。 另一方面，在AND电路115中，输入针对半色调点区域信号（_AMI_MOJI）的字符区域和字符区域辨别内边缘信号（_INEDG）的反相信号。 来自“与”电路114和115的输出信号被输入到亮度变换滤波器116.在亮度变化滤波器116中，目标像素的亮度从其固有亮度变为与目标像素相邻的背景区域的平均亮度。

公开(公告)号：US20020191857A1

公开(公告)日：2002-12-19

申请号：US09855292

申请日：2001-05-14

发明人： William W. Macy JR.

IPC分类号： G06T005/00 ,  G06K009/40 ,  G06K009/44 ,  G06K009/46 ,  G06K009/54 ,  H04N001/409

CPC分类号： G06T5/002 ,  G06T5/20 ,  G06T7/13 ,  G06T2207/20012 ,  G06T2207/20032 ,  G06T2207/20192 ,  H04N1/40075

摘要： Performing inverse halftoning on a halftoned image includes smoothing the halftoned image using a two-dimensional filter to produce a smoothed image, detecting edge areas in the smoothed image, performing lowpass filtering on non-edge areas of the smoothed image, and generating an enhanced image comprised of the edge areas of the smoothed image and lowpass-filtered non-edge areas of the smoothed image.

摘要翻译： 在半色调图像上执行逆半色调包括使用二维滤波器平滑半色调图像以产生平滑图像，检测平滑图像中的边缘区域，对平滑图像的非边缘区域执行低通滤波，以及生成增强图像 由平滑图像的边缘区域和平滑化图像的低通滤波非边缘区域组成。

公开(公告)号：US20020186418A1

公开(公告)日：2002-12-12

申请号：US10166164

申请日：2002-06-11

申请人： FUJI PHOTO FILM CO., LTD.

发明人： Yoshiaki Inoue

IPC分类号： H04N001/405 ,  H04N001/409 ,  G06T005/00

CPC分类号： H04N1/4051

摘要： Halftone image data is generated according to a threshold array in which thresholds T up to a given gradation have been determined, and candidate pixels to be blackened are then determined. Then, a low-frequency component extractor extracts low-frequency component data from density image data which simulates the density of the halftone image data corresponding to an output image from an image output apparatus. A particular frequency component divider 70 divides the extracted low-frequency component data into particular frequency component data for intensifying the low-frequency components, and blackening candidate pixels for intensifying the particular frequency components are excluded, thus narrowing down candidate pixels. The positions of thus determined blackening candidate pixels are determined as the positions of thresholds for a next gradation.

摘要翻译： 根据其中确定了达到给定灰度的阈值T的阈值阵列来生成半色调图像数据，然后确定待黑化的候选像素。 然后，低频分量提取器从模拟来自图像输出装置的与输出图像对应的半色调图像数据的浓度的浓度图像数据中提取低频分量数据。 特定的频率分量除法器70将所提取的低频分量数据划分成用于增强低频分量的特定频率分量数据，并且排除加强特定频率分量的黑化候选像素，从而使候选像素变窄。 这样确定的黑化候选像素的位置被确定为用于下一个灰度的阈值的位置。

公开(公告)号：US20020186416A1

公开(公告)日：2002-12-12

申请号：US09990150

申请日：2001-11-21

申请人： International Business Machines Corporation

发明人： Jennifer Quirin Trelewicz ,  Joan LaVerne Mitchell ,  Ravishankar Rao ,  John B. Condon ,  David Joseph Shields

IPC分类号： H04N001/405 ,  H04N001/407 ,  H04N001/409 ,  G06K015/02 ,  G06T005/00 ,  G03G015/00

CPC分类号： G06K15/02 ,  H04N1/405

摘要： A method, apparatus and article of manufacture for modifying printing based upon direct on-the-fly media characteristic parameters is disclosed. The present invention on-the-fly directly measures a media characteristic parameter and performs real-time print modification in response thereto. The measured characteristic parameters include paper texture and composition, as well as adhesion and penetration of print. The modification of print in response to these measured parameters may allow a customer to maintain observed print quality with lower-cost materials. Adjustments may include the addition of coating, hot rolling, or adjustment of toner concentration. Measured parameters may include mottle, paper texture, and bleed through.

摘要翻译： 公开了一种基于直接介质特性参数来修改打印的方法，装置和制品。 本发明实时地直接测量媒体特性参数并响应于此进行实时打印修改。 测量的特征参数包括纸张纹理和组成，以及印刷品的粘附和渗透。 响应于这些测量参数的印刷品的修改可允许客户使用较低成本的材料来保持观察到的印刷质量。 调整可能包括添加涂层，热轧或调色剂浓度。 测量的参数可能包括斑驳，纸张纹理和渗色。

公开(公告)号：US20020181798A1

公开(公告)日：2002-12-05

申请号：US09979228

申请日：2001-11-19

发明人： Olukayode Anthony Ojo ,  Tatiana Georgieva Kwaaitaal-Spassova

IPC分类号： G06T005/00 ,  G06K009/40 ,  G06T005/20 ,  H04N001/409

CPC分类号： H04N5/21 ,  G06T5/002 ,  G06T5/003 ,  G06T5/20 ,  G06T2207/10016 ,  G06T2207/20192 ,  H04N5/208

摘要： The invention relates to known N-dimensional filters (100) and methods for N-dimensionally filtering for applying noise reduction to an original image pixel. However, carrying out only noise reduction to a pixel of an image is often not enough when a good picture quality is required. Thus, additionally sharpness enhancement (peaking) is carried out. However, noise reduction and peaking have contrasting spectral behaviors which leads to non-optimal results when both operations noise reduction and peaking are implemented in series. Starting from that prior art it is the object of the invention to provide noise reduction and sharpness enhancement to the original pixel in an easier and cheaper manner. This object is solved according to the present invention by defining coefficients null(p, n) or null(p, n) of said transmission function such that the transmission function is capable of applying noise reduction as well as sharpness enhancement to the input signal of said N-dimensional filter (100).

摘要翻译： 本发明涉及已知的N维滤波器（100）和用于将噪声降低应用于原始图像像素的N维滤波的方法。 然而，当需要良好的图像质量时，仅对图像的像素进行降噪通常是不够的。 因此，进一步提高锐化度（峰化）。 然而，噪声降低和峰化具有对比的光谱行为，当两个操作降噪和峰值串联实现时，导致非最佳结果。 从该现有技术开始，本发明的目的是以更容易和更便宜的方式为原始像素提供降噪和清晰度增强。 根据本发明，通过定义所述传输功能的系数α（p，n）或β（p，n）来解决该目的，使得传输功能能够将噪声降低以及锐度增强提供给输入信号 所述N维滤波器（100）。