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公开(公告)号：US07333244B2
公开(公告)日：2008-02-19
申请号：US10758536
申请日：2004-01-16
IPC分类号： G06K15/00
CPC分类号： G06T1/0021 , G06T2201/0051 , H04N1/32144 , H04N1/32256 , H04N1/405 , H04N1/6058
摘要： A method of embedding an image into two images by performing a digital halftoning process on a Cartesian product of color spaces to embed the image into the two images. A digital halftoning process includes an iterative isotropic halftoning process. The iterative isotropic halftoning process for each iteration if Outimage has not changed between two iterations or maximum number of iterations reached, then exit the iterations loop.
摘要翻译： 通过对颜色空间的笛卡尔乘积执行数字半色调处理以将图像嵌入到两个图像中，将图像嵌入到两个图像中的方法。 数字半色调处理包括迭代各向同性半色调处理。 如果Outimage在两次迭代或最大迭代次数之间没有改变，则每次迭代的迭代各向同性半色调处理，然后退出迭代循环。
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公开(公告)号：US20080279417A1
公开(公告)日：2008-11-13
申请号：US11751885
申请日：2007-05-22
IPC分类号： G06K9/00
CPC分类号： G06T1/0021 , G06T2201/0051 , H04N1/32144 , H04N1/32256 , H04N1/405 , H04N1/6058
摘要： A method and system embeds an image into two images by performing a digital halftoning process on a Cartesian product of color spaces.
摘要翻译： 方法和系统通过对颜色空间的笛卡尔乘积执行数字半色调处理将图像嵌入到两个图像中。
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公开(公告)号：US09621762B2
公开(公告)日：2017-04-11
申请号：US13346231
申请日：2012-01-09
摘要： A printing system is disclosed. The printing system includes a halftone calibration system that receives one or more un-calibrated halftones, generates one or more calibrated halftones using an ink model from the one or more un-calibrated halftones, analyzes a printed calibration screen of the one or more calibrated halftones, and performs a halftone calibration.
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公开(公告)号：US09363414B2
公开(公告)日：2016-06-07
申请号：US14527057
申请日：2014-10-29
CPC分类号： H04N1/40087 , G06K15/1881 , H04N1/4051
摘要： A method is disclosed. The method includes applying a human visual system (HVS) model to a Continuous Tone Image (CTI) and a initial Half Tone Image (HTI) to generate a perceived CTI and a perceived HTI and computing a change in pixel error for a first pixel by toggling the first pixel with all the possible output states and swapping the first pixel with all neighbor pixels.
摘要翻译： 公开了一种方法。 该方法包括将人类视觉系统（HVS）模型应用于连续色调图像（CTI）和初始半色调图像（HTI）以产生感知的CTI和感知的HTI，并且通过以下方式计算第一像素的像素误差的变化： 用所有可能的输出状态切换第一个像素，并将第一个像素与所有相邻像素进行交换。
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公开(公告)号：US20140253976A1
公开(公告)日：2014-09-11
申请号：US14287089
申请日：2014-05-26
CPC分类号： H04N1/405 , G06K15/1881 , H04N1/4052 , H04N1/4053
摘要： A method is disclosed. The method includes generating a halftone screen using a Direct Multi-bit Search Screen Algorithm (DMSSA) to optimize a halftone pattern at each gray level.
摘要翻译： 公开了一种方法。 该方法包括使用直接多位搜索屏幕算法（DMSSA）生成半色调屏幕，以在每个灰度级优化半色调图案。
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公开(公告)号：US20130257969A1
公开(公告)日：2013-10-03
申请号：US13438555
申请日：2012-04-03
IPC分类号： B41J29/393
CPC分类号： B41J2/2135
摘要： A printing system is disclosed. The printing system includes a print engine including two or more print heads to generate an alignment chart and an alignment system. The alignment system receives the alignment chart and computes a magnitude of misalignment between the print heads.
摘要翻译： 公开了一种打印系统。 打印系统包括包括两个或多个打印头的打印引擎以产生对准图和对准系统。 对准系统接收对准图并计算打印头之间的未对准的大小。
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公开(公告)号：US20130176600A1
公开(公告)日：2013-07-11
申请号：US13346231
申请日：2012-01-09
IPC分类号： H04N1/405
摘要： A printing system is disclosed. The printing system includes a halftone calibration system that receives one or more un-calibrated halftones, generates one or more calibrated halftones using an ink model from the one or more un-calibrated halftones, analyzes a printed calibration screen of the one or more calibrated halftones, and performs a halftone calibration.
摘要翻译： 公开了一种打印系统。 印刷系统包括半色调校准系统，其接收一个或多个未校准的半色调，使用来自一个或多个未校准的半色调的墨水模型生成一个或多个校准的半色调，分析一个或多个校准半色调的印刷校准屏幕 ，并执行半色调校准。
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公开(公告)号：US08922834B2
公开(公告)日：2014-12-30
申请号：US13440820
申请日：2012-04-05
CPC分类号： H04N1/4053
摘要： A method is disclosed. The method includes generating a Continuous Tone Image (CTI) with all pixel values same as a first gray level, generating an initial Half Tone Image (HTI) with all pixel values equal to minimum absorptance level and computing a change in pixel error for a first pixel. The change in pixel error is computed by identifying a first pixel indicated in a valid pixel map, toggling the first pixel with all the possible output states and swapping the first pixel with all neighbor pixels only if the stacking constraint is satisfied, updating the HTI with the maximum error decrease operation and continue to next pixel location till the end criteria is met.
摘要翻译： 公开了一种方法。 该方法包括产生具有与第一灰度级相同的所有像素值的连续色调图像（CTI），产生具有等于最小吸收水平的所有像素值的初始半色调图像（HTI），并计算第一像素值的像素误差的变化 像素。 通过识别有效像素图中指示的第一像素来计算像素误差的变化，如果满足堆叠约束，则仅切换具有所有可能输出状态的第一像素并且将第一像素与所有相邻像素交换，用H 最大误差减小操作，并继续到下一个像素位置，直到满足结束标准。
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公开(公告)号：US08807691B2
公开(公告)日：2014-08-19
申请号：US13438555
申请日：2012-04-03
IPC分类号： B41J29/38 , B41J29/393
CPC分类号： B41J2/2135
摘要： A printing system is disclosed. The printing system includes a print engine including two or more print heads to generate an alignment chart and an alignment system. The alignment system receives the alignment chart and computes a magnitude of misalignment between the print heads.
摘要翻译： 公开了一种打印系统。 打印系统包括包括两个或多个打印头的打印引擎以产生对准图和对准系统。 对准系统接收对准图并计算打印头之间的未对准的大小。
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公开(公告)号：US08773722B2
公开(公告)日：2014-07-08
申请号：US13440830
申请日：2012-04-05
CPC分类号： H04N1/405 , G06K15/1881 , H04N1/4052 , H04N1/4053
摘要： A method is disclosed. The method includes generating a Continuous Tone Image (CTI) with all pixel values same as a first gray level, generating an initial Half Tone Image (HTI) with all pixel values equal to minimum absorptance level and computing a change in pixel error for a first pixel. The change in pixel error is computed by identifying a first pixel indicated in a valid pixel map, toggling the first pixel with all the possible output states and swapping the first pixel with all neighbor pixels only if the stacking constraint is satisfied, updating the HTI with the maximum error decrease operation and continue to next pixel location till the end criteria is met.
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