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公开(公告)号：US20090160928A1
公开(公告)日：2009-06-25
申请号：US11961486
申请日：2007-12-20
申请人： Robert P. Loce , Beilei Xu , Patrick Y. Maeda
发明人： Robert P. Loce , Beilei Xu , Patrick Y. Maeda
CPC分类号： G02B27/46 , B41J2/471 , G02B26/123
摘要： A printing system includes a multiple-beam generator array configured to generate multiple beams. A collimator lens is positioned to receive the multiple beams, and an aperture stop is located where the multiple beams are spatially coincident with each other. A scanning optical system is positioned to receive the beams from the aperture stop, and a recording medium receives the beams from the scanning optical system. A filter is located where the multiple beams are spatially coincident with each other, whereby each of the multiple beams may be filtered by the supplied filter.
摘要翻译： 打印系统包括被配置为产生多个光束的多光束发生器阵列。 准直透镜被定位成接收多个光束，并且孔径光阑位于多个光束在空间上彼此一致的位置。 定位扫描光学系统以从孔径光阑接收光束，并且记录介质从扫描光学系统接收光束。 位于其中多个光束在空间上彼此重合的滤光器，由此多个光束中的每一个可以由所提供的滤光器进行滤光。
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122.发明授权Corner sharpening of text and line art in a super resolution anti-aliasing image path 有权在超分辨率抗锯齿图像路径中锐化文本和线条艺术公开(公告)号：US07536052B2
公开(公告)日：2009-05-19
申请号：US10736822
申请日：2003-12-15
申请人： Eli S. Saber , Robert P. Loce
发明人： Eli S. Saber , Robert P. Loce
CPC分类号： G06T5/002 , G06T5/003 , G06T5/20 , G06T2200/12 , G06T2207/20164 , G06T2207/30176
摘要： A method for sharpening the corners of digital image data within an anti-aliasing image path so as to overcome corner rounding when displayed or printed. The method comprises stepping a window across the image data and comparing that windowed data to templates or performing Boolean logic and arithmetic operations on the image data. Upon determining a match or a corner detection, pixel values are substituted in the identified pixel locations to achieve a clustering of the substituted pixel values about the corner structure producing a corner-enhanced digital image. Filtering and sampling are then performed according to an anti-alias operation to the corner-enhanced image to produce an anti-aliased corner enhanced image. The data substitution will achieve a localized clustering or “ear” of toner/ink, or in the alternative for inside corners the localized clustered absence of toner/ink. The result of this clustering is a sharpening of the corners so that they display or print as intended by the bitmap.
摘要翻译： 一种用于在抗锯齿图像路径内锐化数字图像数据的角的方法，以便在显示或打印时克服角圆。 该方法包括跨越图像数据步进窗口，并将该窗口数据与模板进行比较，或对图像数据执行布尔逻辑和算术运算。 在确定匹配或拐角检测时，在识别的像素位置中替换像素值，以实现关于角部结构的取代像素值的聚类，从而产生拐角增强数字图像。 然后根据对角增强图像的抗混叠操作来执行滤波和采样，以产生抗锯齿角增强图像。 数据替代将实现调色剂/墨水的局部聚集或“耳朵”，或者在内部角落中可选择地定位聚集的墨粉/墨水不存在。 这种聚类的结果是锐化锐角，使得它们按位图显示或打印。
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公开(公告)号：US20080130054A1
公开(公告)日：2008-06-05
申请号：US11565470
申请日：2006-11-30
申请人： Shen-Ge Wang , Robert P. Loce
发明人： Shen-Ge Wang , Robert P. Loce
IPC分类号： G06K15/00
CPC分类号： H04N1/52
摘要： Disclosed herein is a method and apparatus for moiré-free enhanced color halftone printing of color image separations for an arbitrary number of colorants. The method and apparatus utilizes a plurality of halftone screens, >4, to produce outputs that are moiré free and form hexagonal periodic rosettes. The relatively large number of screens can be used for enhanced printing applications, such as printing with high-fidelity colorants, light colorants, or special colorants, such as white, metallics and fluorescents. The method and apparatus provide for defining rosette fundamental frequency vectors VR1, VR2 that satisfy a length and sum requirement to meet visual acceptability standards according to |VR1|>fmin, |VR2|>fmin, and |VR1±VR2|>fmin; defining N halftone screens for colorants i=1, N, respectively possessing first and second frequency vectors (Vi1, Vi2), where no two screens possess identical fundamental frequency vector pairs; and selecting fundamental frequency vectors for the N halftone screens according to (Vi1, Vi2)=(mi1VR1+mi2VR2, ni1VR1+ni2VR2) for integer m's and n's, where at least one fundamental frequency vector or its conjugate must also satisfy one of the following: Vik=VR1, Vik=VR2, and |Vik>2 max [|VR1|, |VR2|].
摘要翻译： 本文公开了一种用于任意数量的着色剂的彩色图像分离的无莫尔增强彩色半色调印刷的方法和装置。 该方法和装置利用多个半色调筛网，以产生无摩擦和形成六边形周期性玫瑰花结的输出。 相对大量的屏幕可以用于增强的打印应用，例如用高保真着色剂，浅色剂或特殊着色剂如白色，金属和荧光物质的印刷。 该方法和装置提供用于定义满足根据| V R1的视觉可接受性标准的长度和和要求的玫瑰花基波矢量V R1，V R2 ，>＆lt; /＆gt;，＆lt; /＆lt; V 2 R 2 min分钟
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124.发明授权Illuminant-neutral gray component replacement in systems for spectral multiplexing of source images to provide a composite image, for rendering the composite image, and for spectral demultiplexing of the composite image 有权用于源图像频谱复用的系统中的光源中性灰度分量替换，以提供合成图像，用于渲染合成图像，以及用于复合图像的频谱解复用公开(公告)号：US07269297B2
公开(公告)日：2007-09-11
申请号：US10721948
申请日：2003-11-25
CPC分类号： H04N1/56 , H04N1/32149 , H04N1/32309
摘要： Methods and apparatus for spectrally-encoding plural source images and for providing the spectrally-encoded plural source images in a composite image, for rendering the composite image in a physical form, or for recovering at least one of the encoded source images from the rendered composite image such that the recovered source image is made distinguishable. Source image confusion in a rendered composite image is controlled by application of a illuminant-neutral gray component replacement (GCR) technique to the darkness common to the different colorants under the multiple illuminants.
摘要翻译： 用于频谱编码多个源图像并用于在合成图像中提供频谱编码的多个源图像的方法和装置，用于以物理形式呈现合成图像，或用于从所渲染的复合物中恢复至少一个编码源图像 使得恢复的源图像是可区分的。 渲染合成图像中的源图像混淆通过将光源 - 中性灰色成分置换（GCR）技术应用于在多种光源下的不同着色剂共同的黑暗来控制。
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125.发明授权公开(公告)号：US07227670B2
公开(公告)日：2007-06-05
申请号：US10694495
申请日：2003-10-27
IPC分类号： H04N1/405
CPC分类号： H04N1/4092 , G06K15/1826 , G06T5/002 , G06T5/003 , G06T5/30 , G06T2207/20192 , G06T2207/30144 , G06T2207/30176 , H04N1/58
摘要： Selective edge softening and selective edge dithering is introduced into an image representation to improve local control where halo problems are expected. Selective areas of dilation are isolated and separately dithered or halftoned, the result of which is then swapped back into or substituted for the stored original image. In this manner misregistration and color plane-to-plane interactions can be compensated for in plural image forming station architecture systems. The same technique is also valuable in monochrome systems as an aid to overcoming edge displacement and slow toner problems when the selective edge softening is selectively applied to edges which are in particular perpendicular to the fast scan direction.
摘要翻译： 选择边缘柔化和选择性边缘抖动被引入到图像表示中以改善局部控制，其中预期光晕问题。 选择性扩张区域是隔离的，并且分开地抖动或半色调，然后将其结果交换回或代替所存储的原始图像。 以这种方式，在多个图像形成站架构系统中可以补偿不对准和彩色平面到平面的相互作用。 当选择性边缘软化选择性地施加到特别是垂直于快速扫描方向的边缘时，相同的技术在单色系统中也是有价值的，以帮助克服边缘位移和缓慢的调色剂问题。
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公开(公告)号：US07102784B1
公开(公告)日：2006-09-05
申请号：US09455343
申请日：1999-12-06
IPC分类号： H04N1/40
CPC分类号： H04N1/4092 , G06K15/1826 , G06T5/002 , G06T5/003 , G06T5/30 , G06T2207/20192 , G06T2207/30144 , G06T2207/30176 , H04N1/58
摘要： Selective edge softening and selective edge dithering is introduced into an image representation to improve local control where halo problems are expected. Selective areas of dilation are isolated and separately dithered or halftoned, the result of which is then swapped back into or substituted for the stored original image. In this manner misregistration and color plane-to-plane interactions can be compensated for in plural image forming station architecture systems. The same technique is also valuable in monochrome systems as an aid to overcoming edge displacement and slow toner problems when the selective edge softening is selectively applied to edges which are in particular perpendicular to the fast scan direction.
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公开(公告)号：US06806980B2
公开(公告)日：2004-10-19
申请号：US09750568
申请日：2000-12-28
申请人： Beilei Xu , Robert P. Loce
发明人： Beilei Xu , Robert P. Loce
IPC分类号： H04N104
CPC分类号： H04N1/401 , H04N1/4072
摘要： A method of correcting illumination variation in a scanned image of a non-planar original object, such as an open book, includes scanning at least a portion of the book in order to produce scanned image data. Illumination variation data is extracted from the scanned image data and used to derive a plurality of illumination compensation values. The scanned image data is then compensated or scaled in accordance with the illumination compensation values. Illumination data is acquired through a sampling window having a long and thin geometry. From the data acquired via the sampling window, foreground and background illumination distributions are defined. From the foreground and background illuminations, high and low threshold values are determined in order to calculate a set of reference or compensation values. A tone reproduction curve is generated in order to map the scanned data, thus normalizing the illumination variation. Alternately, an illumination gain factor is employed in the compensation.
摘要翻译： 一种校正非平面原始物体（例如打开的书本）的扫描图像中的照明变化的方法包括扫描书本的至少一部分以产生扫描图像数据。 从扫描图像数据中提取照明变化数据，并用于导出多个照明补偿值。 扫描的图像数据然后根据照明补偿值进行补偿或缩放。 通过具有长而薄的几何形状的采样窗口获取照明数据。 通过采样窗口获得的数据，定义了前景和背景照明分布。 从前景和背景照明，确定高和低阈值以便计算一组参考或补偿值。 产生色调再现曲线以便映射扫描的数据，从而使照明变化标准化。 或者，在补偿中采用照明增益因子。
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公开(公告)号：US06728004B2
公开(公告)日：2004-04-27
申请号：US09870304
申请日：2001-05-30
IPC分类号： B41B944
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。
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公开(公告)号：US06683702B1
公开(公告)日：2004-01-27
申请号：US09348398
申请日：1999-07-07
IPC分类号： G06K936
CPC分类号： H04N1/40075 , H04N1/4056
摘要： A method of reproducing a document including halftoned regions therein scans the document to generate scanned image data comprising a digitized representation of said document. The scanned image data that corresponds to the halftoned regions is then rendered using a compact rendering process that includes positioning an observation window about a target pixel and a neighboring pixel; selecting a fill-order based upon a result of the analyzing step; and generating a high addressability pixel as a function of the selected fill-order.
摘要翻译： 再现包括其中的半色调区域的文档的方法扫描文档以生成包括所述文档的数字化表示的扫描图像数据。 然后使用包括定位关于目标像素和相邻像素的观察窗的紧凑渲染过程来渲染与半色调区域对应的扫描图像数据; 基于分析步骤的结果选择填充顺序; 以及根据所选择的填充顺序生成高可寻址性像素。
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公开(公告)号：US06529643B1
公开(公告)日：2003-03-04
申请号：US09217224
申请日：1998-12-21
IPC分类号： G06K932
CPC分类号： H04N1/047 , H04N1/1135 , H04N1/12 , H04N2201/02425 , H04N2201/03162 , H04N2201/04787 , H04N2201/04789 , H04N2201/04791
摘要： A system for generating a warped contone image that compensates for beam scan trajectory distortions. The system includes an image buffer for storing a portion of a received contone image. An interpolation coefficient generator provides interpolation coefficients associated with a warped pixel within the warped contone image in response to an input identifying the warped pixel. A pixel interpolator is coupled to the image buffer and the interpolation coefficient generator and provides an output signal that identifies the warped pixel within the warped contone image. The pixel interpolator further retrieves pixels from the contone image stored in the image buffer using the interpolation coefficients and generates the warped pixel by combining the retrieved pixels into a single pixel value.
摘要翻译： 用于产生补偿光束扫描轨迹失真的翘曲连续色调图像的系统。 该系统包括用于存储接收的连续色调图像的一部分的图像缓冲器。 内插系数发生器响应于识别扭曲像素的输入，提供与翘曲连续色调图像内的翘曲像素相关联的内插系数。 像素内插器耦合到图像缓冲器和内插系数发生器，并提供识别翘曲的连续色调图像内的翘曲像素的输出信号。 像素内插器还使用内插系数从存储在图像缓冲器中的连续色图像中检索像素，并通过将检索到的像素组合成单个像素值来生成翘曲像素。
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