MEMORY EFFICIENT HIERARCHICAL ERROR DIFFUSION WITH COLOR CONSISTENCY CONSTRAINTS

    公开(公告)号:US20110102848A1

    公开(公告)日:2011-05-05

    申请号:US12613069

    申请日:2009-11-05

    申请人: Zhigang Fan Zhen He

    发明人: Zhigang Fan Zhen He

    IPC分类号: H04N1/405

    CPC分类号: H04N1/4052

    摘要: A halftoning process for printing digital images includes: receiving CMYK input pixel data that define an input pixel of an input digital image in terms of continuous tone input data values for cyan, magenta, yellow, and black colors, wherein I(C), I(M), I(Y), I(K) respectively correspond to the continuous tone input data value for the cyan, magenta, yellow, and black colors; converting the CMYK input pixel data to modified CMYKRGB* pixel data that define the input pixel in terms of error-adjusted continuous tone data values for the cyan, magenta, yellow, and black colors, and also in terms of red, green and blue colors, wherein I*(C), I*(M), I*(Y), I*(K), I*(R), I*(G), I*(B) respectively correspond to the error-adjusted converted continuous tone input data values for the cyan, magenta, yellow, black, red, green, blue colors; quantizing the modified CMYKRGB* pixel data to derive intermediate output CMYKRGB pixel data in which the cyan, magenta, yellow, black, red, green, and blue colors are each defined by either a first quantized value that represents no color or a second quantized pixel value that represents full color, wherein O′(C), O′(M), O′(Y), O′(K), O′(R), O′(G), O′(B) respectively define said intermediate output pixel data for the cyan, magenta, yellow, black, red, green, and blue colors, and wherein the intermediate output CMYKRGB pixel data define an output pixel that corresponds to the input pixel; converting the intermediate output CMYKRGB pixel data to CMYK output data in which the output pixel is defined in terms of CMYK output values O(C), O(M), O(Y), O(K) respectively for the cyan, magenta, yellow, and black colors, wherein each of the CMYK output values is defined by either a first output value representing no color or a second output value representing full color.

    Electricity Generation Using Phototrophic Microbial Fuel Cells
    32.
    发明申请
    Electricity Generation Using Phototrophic Microbial Fuel Cells 审中-公开
    使用光养力微生物燃料电池的发电

    公开(公告)号:US20100196742A1

    公开(公告)日:2010-08-05

    申请号:US12695905

    申请日:2010-01-28

    IPC分类号: H01M8/16

    CPC分类号: H01M8/16 Y02E60/527 Y02P70/56

    摘要: A sediment-type self-sustained phototrophic microbial fuel cell for generating electricity through the syntrophic interaction between photosynthetic microorganisms and heterotrophic bacteria in algae cultivation ponds used for biodiesel production. The microbial fuel cell is operable to continuously produce electricity without the external input of exogenous organics or nutrients.

    摘要翻译: 一种用于生物柴油生产的藻类养殖池中的光合微生物和异养细菌之间的相互作用发生电的沉积型自持式光养微生物燃料电池。 微生物燃料电池可操作以不经外部输入的外源有机物或营养物质连续产生电力。

    VECTOR HALF-TONING WITH MINIMUM LUMINANCE VARIATION DOT FORMATION
    33.
    发明申请
    VECTOR HALF-TONING WITH MINIMUM LUMINANCE VARIATION DOT FORMATION 有权
    具有最小的LUMINANCE变化形成的矢量HALF-TONING

    公开(公告)号:US20090195798A1

    公开(公告)日:2009-08-06

    申请号:US12025838

    申请日:2008-02-05

    申请人: ZHEN HE

    发明人: ZHEN HE

    IPC分类号: H04N1/52

    CPC分类号: H04N1/52

    摘要: What is disclosed is a system and method for improving vector half-toning in dot-on-dot printing devices. The method utilizes minimum spatial luminance variation to achieve a smooth color half-toning pattern transition. Red (M+Y), blue (C+M), and green (C+Y) dots in addition to CMY dots are utilized to achieve darker colors without black ink. As gray values to be printed get darker, green, red and blue pixels get introduced. Black is not introduced until the gray values are darker by approximately 30%. Given a fixed half-toning step, the CMY to CMYKRGB conversion is controlled. The primary CMY color densities are used as high as possible before secondary color dots are used. With the maximum possible primary CMY color densities achieved, the secondary color densities are used as high as possible before using any black dots. This minimizes black dot density generation. Secondary color densities are minimized by maximizing primary color densities.

    摘要翻译: 公开的是用于改进点对点打印设备中的矢量半色调的系统和方法。 该方法利用最小的空间亮度变化来实现平滑的彩色半色调图案转换。 除了CMY点之外,使用红色(M + Y),蓝色(C + M)和绿色(C + Y)),以获得没有黑色墨水的较暗颜色。 随着要打印的灰度值变得更暗,绿色,红色和蓝色像素被引入。 黑色不会被引入,直到灰度值变暗了约30%。 给定一个固定的半色调步骤,CMY到CMYKRGB转换被控制。 在使用次要色点之前,使用主要的CMY颜色浓度尽可能高。 在实现最大可能的主要CMY颜色浓度的情况下,在使用任何黑点之前,使用第二颜色浓度尽可能高。 这样可以最大限度地减少黑点密度的产生。 通过最大化原色密度来最小化次色密度。

    COLOR STATUS DETECTION IN COLOR BINARY DOMAIN
    35.
    发明申请
    COLOR STATUS DETECTION IN COLOR BINARY DOMAIN 有权
    颜色二进制域中的颜色状态检测

    公开(公告)号:US20080079967A1

    公开(公告)日:2008-04-03

    申请号:US11537032

    申请日:2006-09-29

    申请人: Zhen He

    发明人: Zhen He

    IPC分类号: G06F15/00

    CPC分类号: H04N1/642

    摘要: A method to determine the color status of a scanned original segments a binary halftone image into a predetermined number of local windows and converts each local window to a device-independent color space. The method then determines a color space parameter for each local window and compares the color space parameters for the local windows to at least one threshold to determine the color status of the scanned original. An apparatus having a scanner creates a scanned image of an original and has at least one processor to create a binary halftone image from the scanned image, segment the binary halftone image into a predetermined number of local windows, convert each local window to a device-independent color space, determine a color space parameter for each local window, and compare the color space parameter for each local window to at least one threshold to determine the color status for the scanned original.

    摘要翻译: 确定扫描的原稿的颜色状态的方法将二进制半色调图像分割成预定数量的本地窗口,并将每个本地窗口转换为与设备无关的色彩空间。 该方法然后确定每个本地窗口的颜色空间参数,并将本地窗口的颜色空间参数与至少一个阈值进行比较,以确定扫描的原稿的颜色状态。 具有扫描器的装置产生原稿的扫描图像,并且具有至少一个处理器,用于从扫描图像创建二进制半色调图像,将二进制半色调图像分割成预定数量的本地窗口,将每个本地窗口转换为设备 - 独立颜色空间,确定每个本地窗口的颜色空间参数,并将每个本地窗口的颜色空间参数与至少一个阈值进行比较,以确定扫描原稿的颜色状态。

    Halftoning method and system
    38.
    发明申请
    Halftoning method and system 有权
    半色调方法和系统

    公开(公告)号:US20050162704A1

    公开(公告)日:2005-07-28

    申请号:US10764839

    申请日:2004-01-26

    IPC分类号: B41J2/52 G06K15/00 H04N1/405

    CPC分类号: H04N1/405 H04N1/4057

    摘要: A combined dot density (FM) and dot size (AM) modulation halftoning method and system produces a halftone in which both the density and size of the dots are modulated. In addition to modulating the dot size and density, the halftoning method can also explicitly control the size of dot clusters and different intensity levels.

    摘要翻译: 组合点密度(FM)和点尺寸(AM)调制半色调方法和系统产生调制了点的密度和尺寸的半色调。 除了调整点大小和密度之外,半色调方法还可以明确地控制点簇的大小和不同的强度级别。

    Method and device for a multi-touch based correction of a handwriting sentence system
    39.
    发明授权
    Method and device for a multi-touch based correction of a handwriting sentence system 有权
    用于手写语句系统的多点触摸校正的方法和装置

    公开(公告)号:US09176666B2

    公开(公告)日:2015-11-03

    申请号:US13336249

    申请日:2011-12-23

    IPC分类号: G06F3/041 G06F3/0488

    摘要: A method and device is for a multi-touch based correction of a handwriting sentence system. The method includes receiving touch inputs, generating interpreted input data as a function of the touch inputs, and displaying the interpreted input data on a display device. A request to correct a portion of the interpreted input data then switches to a correction mode. During the correction mode, a correction user interface is displayed on the display device, a gesture is received so setting data is determined as a function of a first disposition of the gesture, the setting data indicating a type of correction to be applied to the portion of the interpreted inputs, a correction data is determined as a function of a second disposition of the gesture, and the portion of the interpreted input data is corrected as a function of the touch input, the setting data, and the correction data.

    摘要翻译: 一种方法和装置用于手写句子系统的基于多点触摸的校正。 该方法包括接收触摸输入,产生作为触摸输入的函数的解释输入数据,以及将解释的输入数据显示在显示装置上。 纠正所解释的输入数据的一部分的请求然后切换到校正模式。 在校正模式期间,在显示装置上显示校正用户界面,接收手势,从而根据手势的第一种配置来确定设置数据,该设置数据指示应用于该部分的校正类型 的解释输入,校正数据被确定为手势的第二处置的函数,并且解释的输入数据的部分被校正为触摸输入,设置数据和校正数据的函数。

    Floating Microbial Fuel Cells
    40.
    发明申请
    Floating Microbial Fuel Cells 审中-公开
    浮动微生物燃料电池

    公开(公告)号:US20120082868A1

    公开(公告)日:2012-04-05

    申请号:US13250939

    申请日:2011-09-30

    IPC分类号: H01M8/16 H01M4/92 H01M4/96

    CPC分类号: H01M8/16 H01M8/004 Y02E60/527

    摘要: A microbial fuel cell (MFC) includes a cation exchange membrane defining an anode chamber, an anode positioned in the anode chamber, and a cathode in contact with an exterior of the cation exchange membrane. A restrictor in contact with the cation exchange membrane defines an opening through which water flows into or out of the anode chamber. The MFC includes bacteria in the anode chamber that oxidize organic compounds in the water while oxygen is reduced at the cathode, such that electricity is generated in the absence of an external power source. In an example, the MFC is coupled to a buoy and provides electricity to an electrically powered device also coupled to the buoy, thereby providing a low-maintenance source of power in remote locations. The electrically powered device may be, for example, a light or a sensor.

    摘要翻译: 微生物燃料电池(MFC)包括限定阳极室的阳离子交换膜,位于阳极室中的阳极和与阳离子交换膜的外部接触的阴极。 与阳离子交换膜接触的限制器限定了水流入或流出阳极室的开口。 MFC包括在阳极室中的细菌,其氧化水中的有机化合物,同时在阴极处减少氧气,使得在没有外部电源的情况下产生电。 在一个示例中,MFC耦合到浮标并且向耦合到浮标的电动设备提供电力,从而在远程位置提供低维护的电源。 电动设备可以是例如光或传感器。