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151. 发明申请

US20050271265A1 Method and system for classifying scanned-media 有权
标题翻译：分类扫描媒体的方法和系统
公开(公告)号：US20050271265A1
公开(公告)日：2005-12-08
申请号：US10861855
申请日：2004-06-04
申请人： Shen-Ge Wang , Reiner Eschbach , Gaurav Sharma
发明人： Shen-Ge Wang , Reiner Eschbach , Gaurav Sharma
IPC分类号： G06K9/20 , G06K9/34 , G06K9/46 , G06K9/62
CPC分类号： G06K9/00456
摘要： A method for automatically classifying a printed image, includes scanning the printed image; selecting an n by n block of pixels from the scanned image; calculating an array of DCT coefficients of the pixel block, wherein the array of calculated DCT coefficients are representative of spatial frequency and spatial orientation of the pixel block; comparing the DCT coefficients with an array of predetermined values, wherein the array of predetermined values are indicative of different image marking processes used to produce printed images; and determining an image marking process used to create the printed image based on the comparison of the DCT coefficients with the array of predetermined values. The array of DCT coefficients may be sampled into a feature set and the feature set provided to a neural network to output the determined image marking process.
摘要翻译：一种用于自动分类打印图像的方法，包括扫描印刷图像; 从扫描图像中选择n×n个像素块; 计算所述像素块的DCT系数的阵列，其中所计算的DCT系数的阵列代表所述像素块的空间频率和空间取向; 将DCT系数与预定值的阵列进行比较，其中预定值的阵列指示用于产生打印图像的不同图像标记处理; 以及基于DCT系数与预定值的阵列的比较来确定用于创建打印图像的图像标记处理。 DCT系数的阵列可以被采样到特征集中，并且将特征集提供给神经网络以输出确定的图像标记过程。

152. 发明授权

US06778301B2 Fast preview of CCITT-compressed documents 失效
标题翻译：快速预览CCITT压缩文件
公开(公告)号：US06778301B2
公开(公告)日：2004-08-17
申请号：US09731130
申请日：2000-12-06
申请人： Ricardo L. de Queiroz , Reiner Eschbach
发明人： Ricardo L. de Queiroz , Reiner Eschbach
IPC分类号： H04N141
CPC分类号： G06T3/0025
摘要： A method of deriving a preview image from CCITT-compressed digital image data that represent an original image is disclosed. The method comprises receiving CCITT-compressed image data that represent an original image having Nr rows and Nc columns. Without decompressing the CCITT-compressed data, a preview image is derived that has Nr/M rows each having Nc/M pixel values. The reducing step includes processing each group of M rows of said original image represented in the CCITT-compressed data. Specifically, the CCITT-compressed data that represent the group of M rows of the original image is read. For each constituent row in the group of M rows, a location in the row is derived for each transition represented in the CCITT-compressed data. For each constituent row in the group of M rows, each transition in the row is mapped to a pixel value in a reduced row having Nc/M pixel values. Therefore, for each group of M rows in the original image, M reduced rows are defined. In each case, the M reduced rows are combined by averaging or the like into a single preview row having Nc/M preview pixel values. The preview image is assembled from Nr/M preview rows.
摘要翻译：公开了一种从表示原始图像的CCITT压缩的数字图像数据中导出预览图像的方法。该方法包括接收表示具有N行和Nc列的原始图像的CCITT压缩图像数据。在不解压缩CCITT压缩数据的情况下，导出具有每个具有Nc / M个像素值的Nr / M行的预览图像。缩小步骤包括处理在CCITT压缩数据中表示的所述原始图像的每组M行。具体地，读取表示原始图像的M行组的CCITT压缩数据。对于M行组中的每个组成行，针对CCITT压缩数据中表示的每个转换导出行中的位置。对于M行组中的每个构成行，行中的每个转换被映射到具有Nc / M个像素值的缩小行中的像素值。因此，对于原始图像中的每组M行，定义M个缩小的行。在每种情况下，通过平均等将M个缩小的行组合成具有Nc / M个预览像素值的单个预览行。预览图像由Nr / M预览行组合。

153. 发明授权

US06715127B1 System and method for providing editing controls based on features of a raster image 失效
标题翻译：基于光栅图像的特征提供编辑控制的系统和方法
公开(公告)号：US06715127B1
公开(公告)日：2004-03-30
申请号：US09215175
申请日：1998-12-18
申请人： Reiner Eschbach , William A. Fuss , Daniel M. Murray
发明人： Reiner Eschbach , William A. Fuss , Daniel M. Murray
IPC分类号： G06F1721
CPC分类号： G06T11/60
摘要： An image editing system and method provides a user with edit commands based on edit-related features for a raster image to be edited. The edit-related feature used to determine which edit commands are provided to the user can include DIR-type rendering hints, a compression ratio for the image or portion of the image, a compression scheme used to compress the image or portion of the image and other raster image features. The edit commands presented to a user can be user customized. Thus, an intelligent set of edit commands can be provided that is related to the raster image being edited.
摘要翻译：图像编辑系统和方法为用户提供基于编辑相关特征的编辑命令，用于要编辑的光栅图像。用于确定向用户提供哪些编辑命令的编辑相关特征可以包括DIR类型呈现提示，图像的压缩比或图像的一部分，用于压缩图像或部分图像的压缩方案，以及其他光栅图像特征。提供给用户的编辑命令可以是用户自定义的。因此，可以提供与被编辑的光栅图像有关的一组智能编辑命令。

154. 发明授权

US06646762B1 Gamut mapping preserving local luminance differences 失效
标题翻译：色域映射保留局部亮度差异
公开(公告)号：US06646762B1
公开(公告)日：2003-11-11
申请号：US09435308
申请日：1999-11-05
申请人： Thyagarajan Balasubramanian , Ricardo L. de Queiroz , Karen M. Braun , Reiner Eschbach
发明人： Thyagarajan Balasubramanian , Ricardo L. de Queiroz , Karen M. Braun , Reiner Eschbach
IPC分类号： G06F1300
CPC分类号： H04N1/6058
摘要： A color printing process, printing a color image in which out-of-gamut original colors are present. For each pixel defined by an original color which is determined to be out of gamut, a gamut remapping process is applied to map each pixel to a color which is within a printer gamut, remapping said pixels to colors within an output printer gamut. For a given set of gamut remapped pixels, gamut remapped pixel colors are compared with said original pixel colors, to derive a comparison metric. Using the comparison metric, a corrected set of gamut remapped colors is generated. The comparison metric may be subjected to an adaptive filtering process, which strengthens the comparison metric in high frequency image regions to increase its impact on the gamut remapped colors, and weakens the comparison metric in low frequency areas, to weaken its impact on the gamut remapped colors.
摘要翻译：彩色打印处理，打印出色域原色的彩色图像。对于被确定为超出色域的原始颜色限定的每个像素，应用色域重新映射处理以将每个像素映射到在打印机色域内的颜色，将所述像素重新映射到输出打印机色域内的颜色。对于给定的色域重映射像素集合，将色域重新映射的像素颜色与所述原始像素颜色进行比较，以导出比较度量。使用比较度量，生成校正的色域重映射颜色集合。比较度量可以进行自适应滤波处理，其加强了高频图像区域中的比较度量，以增加其对色域重映射颜色的影响，并且削弱了低频区域中的比较度量，以削弱其对色域重新映射的影响颜色。

155. 发明授权

US5802214A Method for determining and loading an image-dependent look-up table for generating an enhanced image representation 失效
标题翻译：用于确定和加载用于生成增强图像表示的图像相关查找表的方法
公开(公告)号：US5802214A
公开(公告)日：1998-09-01
申请号：US569808
申请日：1995-12-08
申请人： Reiner Eschbach , William A. Fuss , Charles M. Hains
发明人： Reiner Eschbach , William A. Fuss , Charles M. Hains
IPC分类号： H04N1/409 , G06T5/00 , H04N1/407 , H04N1/60 , G06K9/40
CPC分类号： H04N1/4074 , H04N1/6027
摘要： A scanner generates a first set of M-bit signals representing an image in a document. A default table translates the M-bit signals into linearized N-bit signals where M>N. A color image processing module processes the N-bit signals to generate an image-dependent look-up table which, thereafter, is loaded into the scanner. The scanner then generates a second set of M-bit signals using a high resolution re-scan of the same image. The second set of M-bit signals are translated into N-bit signals using the image-dependent look-up table to generate an electronic representation with enhancement characteristics.
摘要翻译：扫描器产生表示文档中的图像的第一组M位信号。默认表将M位信号转换成M> N的线性化N位信号。彩色图像处理模块处理N位信号以产生图像相关的查找表，其后被加载到扫描器中。扫描仪然后使用相同图像的高分辨率重新扫描生成第二组M位信号。使用图像相关的查找表将第二组M位信号转换成N位信号，以产生具有增强特性的电子表示。

156. 发明授权

US5414538A Image-dependent exposure enhancement 失效
标题翻译：图像依赖性曝光增强
公开(公告)号：US5414538A
公开(公告)日：1995-05-09
申请号：US132973
申请日：1993-10-07
申请人： Reiner Eschbach
发明人： Reiner Eschbach
IPC分类号： G03G15/01 , G06T5/00 , H04N1/407 , H04N1/52 , H04N1/46
CPC分类号： H04N1/4074
摘要： A method of altering the exposure in the reproduction of an electronically encoded natural scene image, including process steps of a) receiving an electronically encoded natural scene image, where the encoding is in terms of red-green-blue signals; b) converting the signals to a luminance-chrominance signal format, wherein at least one signal represents overall image intensity; c) comparing the intensity signal to a pair of preset threshold signals T.sub.light, T.sub.dark, respectively indicating satisfactory brightness and darkness of the image and producing a multi-state signal responsive to the comparison; d) if the signal state indicates that both thresholds are exceeded, or that neither threshold is exceeded, directing the electronically encoded image without alteration to further processing; e) if the signal state indicates that one of the pair of preset thresholds is exceeded, the original electronically encoded signal is processed in accordance with the equation:OutputI=InputI.sup..gamma.where I is image intensity at a given discrete area of the image and .gamma. is given as ##EQU1##
摘要翻译：一种在电子编码的自然场景图像的再现中改变曝光的方法，包括以下步骤：a）接收电子编码的自然场景图像，其中所述编码是以红 - 绿 - 蓝信号为依据的; b）将信号转换为亮度 - 色度信号格式，其中至少一个信号表示总体图像强度; c）将强度信号与一对预设阈值信号Tlight，Tdark进行比较，分别指示图像的令人满意的亮度和暗度，并响应于比较产生多状态信号; d）如果信号状态指示超过两个阈值，或者两个阈值都不超过，则指示电子编码图像而不改变以进一步处理; e）如果信号状态指示超过一对预设阈值中的一个，则根据以下等式处理原始电子编码信号：OutputI = InputI gamma其中I是图像的给定离散区域处的图像强度，γ 作为给出

157. 发明授权

US5363209A Image-dependent sharpness enhancement 失效
标题翻译：图像依赖锐度增强
公开(公告)号：US5363209A
公开(公告)日：1994-11-08
申请号：US147612
申请日：1993-11-05
申请人： Reiner Eschbach , William A. Fuss
发明人： Reiner Eschbach , William A. Fuss
IPC分类号： H04N1/409 , G06T5/20 , H04N1/46 , H04N1/58 , H04N1/40
CPC分类号： G06T5/20 , H04N1/58
摘要： A method of altering the sharpness in the reproduction of an electronically encoded natural scene image, including process steps of: a) converting the signals to a luminance-chrominance signal format, wherein at least one signal represents overall image intensity; b) determining the maximum local contrast within the image; c) determining a filter function applicable to the image which increases maximum local contrast to a predetermined target value, and all other contrast to an amount proportional thereto; and d) applying the determined filter function to the image to increase sharpness thereof.
摘要翻译：一种改变电子编码的自然场景图像的再现中的清晰度的方法，包括以下步骤的处理步骤：a）将信号转换为亮度 - 色度信号格式，其中至少一个信号表示总体图像强度; b）确定图像内的最大局部对比度; c）确定适用于图像的滤波器功能，其将与预定目标值的最大局部对比度增加，以及与其成比例的量的所有其他对比度; 以及d）将确定的滤波函数应用于图像以增加其清晰度。

158. 发明授权

US5341224A Image processing system and method for employing adaptive scanning of halftones to provide better printable images 失效
标题翻译：采用半色调自适应扫描的图像处理系统和方法，提供更好的可打印图像
公开(公告)号：US5341224A
公开(公告)日：1994-08-23
申请号：US870066
申请日：1992-04-17
申请人： Reiner Eschbach
发明人： Reiner Eschbach
IPC分类号： H04N1/403 , H04N1/409 , H04N1/40
CPC分类号： H04N1/4092 , H04N1/403
摘要： An image processing system employs a scanner to generate an image having gray content from an input halftone image. The system further includes a programmed computer that determines whether each pixel is a constant area pixel or an edge area pixel. Each constant area pixel is detected to be a white pixel or a black pixel and the white or black value is set with reference to a local black or white reference point. The local reference point is then adjusted as a function of the input value of each constant area pixel. Each edge area pixel is detected to be a local-extremum pixel or a nonextremum pixel. The value of each local-extremum pixel is modified as a function of the current local reference point. The local reference point is also adjusted as a function of the value of each local-extremum or nonextremum pixel after it is detected. The modified constant and edge area pixels are stored as a modified image for output processing.
摘要翻译：图像处理系统采用扫描器从输入半色调图像生成具有灰度内容的图像。该系统还包括一个编程的计算机，其确定每个像素是恒定区域像素还是边缘区域像素。每个恒定区域像素被检测为白色像素或黑色像素，并且参考局部黑色或白色参考点设置白色或黑色值。然后根据每个恒定区域像素的输入值调整局部参考点。每个边缘区域像素被检测为局部极值像素或非最小像素。每个局部极值像素的值作为当前局部参考点的函数进行修改。在检测到本地参考点之后，还会根据每个局部极值或非最小像素的值进行调整。经修改的常数和边缘区域像素被存储为用于输出处理的修改图像。

159. 发明授权

US5325211A Error diffusion with output and input based feedback 失效
标题翻译：基于输出和输入的反馈误差扩散
公开(公告)号：US5325211A
公开(公告)日：1994-06-28
申请号：US000166
申请日：1993-01-04
申请人： Reiner Eschbach
发明人： Reiner Eschbach
IPC分类号： H04N1/40 , H04N1/405
CPC分类号： H04N1/4053
摘要： A method of quantizing pixels in an image formed by a plurality of pixels, each pixel representing an optical density of the image at a location therewith, and having an original optical density value selected from one of a set of `c` original optical density values that has a number of members larger than a desired output set of `d` optical density values, through a process of error diffusion. In this process, `c` and `d` are integer values representing pixel depth. For an input image so comprised, initially, an image signal is initially modified in accordance with previously determined error. Thereafter, during the quantization step of the process, the threshold of an error diffusion process is dynamically adjusted in accordance with the original image to selectively control an amount of edge enhancement introduced into the image. The threshold level is selectively modified on a pixel by pixel basis and may be used to increase or decrease the edge enhancement of the output digital image, thus, more closely representing the original detail and edge sharpness of the continuous tone input image. The threshold of the error diffusion process is also varied responsive to the image that is output, by providing a feedback response to the thresholding process, to vary the threshold level to favor a determination of an output pixel having the same state as an adjacent pixel. Based on the dynamically varying threshold, an output pixel is determined, and the error or difference between the output and the modified image signal is determined. This error is added on a weighted basis to a predetermined group of neighboring image signals, in accordance with the image signal modification initially described.
摘要翻译：一种量化由多个像素形成的图像中的像素的方法，每个像素表示在其位置处的图像的光密度，并且具有从一组“c”原始光密度值中选择的原始光密度值通过误差扩散过程，其具有大于期望输出的“d”光密度值集合的成员数量。在这个过程中，'c'和'd'是表示像素深度的整数值。对于如此包含的输入图像，最初，根据先前确定的误差来初始地修改图像信号。此后，在处理的量化步骤期间，根据原始图像动态地调整误差扩散处理的阈值，以选择性地控制引入到图像中的边缘增强量。阈值电平在逐个像素的基础上选择性地修改，并可用于增加或减少输出数字图像的边缘增强，从而更接近地表示连续色调输入图像的原始细节和边缘锐度。通过对阈值处理提供反馈响应来改变误差扩散过程的阈值也是响应于输出的图像而改变的，以有利于具有与相邻像素相同状态的输出像素的确定。基于动态变化的阈值，确定输出像素，并且确定输出和修改的图像信号之间的误差或差异。根据最初描述的图像信号修改，将这个误差加权到预定的相邻图像信号组。

160. 发明授权

US5317653A Method for quantization gray level pixel data with application of under compensated error diffusion 失效
标题翻译：使用欠补偿误差扩散的灰度级像素数据量化方法
公开(公告)号：US5317653A
公开(公告)日：1994-05-31
申请号：US65088
申请日：1993-05-20
申请人： Reiner Eschbach , Keith T. Knox , David Birnbaum
发明人： Reiner Eschbach , Keith T. Knox , David Birnbaum
IPC分类号： G06T5/00 , H04N1/40 , H04N1/405 , G06K1/38
CPC分类号： H04N1/4052
摘要： A method and arrangement for the application of under compensated error diffusion to a pixel quantizing method in the conversion of image data from a number of input levels that is relatively large with respect to a number of desired output levels.
摘要翻译：一种用于将图像数据从相对于期望输出电平数量相对较大的输入电平的数字转换中应用于补偿误差扩散到像素量化方法的方法和装置。

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