REDUCING INK BLEED ARTIFACTS FOR RGB IMAGES
    81.
    发明申请
    REDUCING INK BLEED ARTIFACTS FOR RGB IMAGES 有权
    减少用于RGB图像的墨水文稿

    公开(公告)号:US20110019238A1

    公开(公告)日:2011-01-27

    申请号:US12507226

    申请日:2009-07-22

    CPC classification number: H04N1/6022

    Abstract: A method for modifying an input digital image having three color channels, to form a modified digital image suitable for use by an inkjet printer having reduced ink bleed artifacts comprising computing a transformed digital image containing at least a black color channel and a color dependent scale factor channel, computing a filtered black color channel using a convolution operation, and forming the modified digital image in response to the corresponding pixel values of the color dependent scale factor channel and the filtered black color channel, so that when the modified digital image is used to produce a printed image on an inkjet printer there are reduced ink bleed artifacts.

    Abstract translation: 一种用于修改具有三个颜色通道的输入数字图像的方法,以形成适于由具有减少的墨水泄漏伪影的喷墨打印机使用的修改的数字图像,包括计算至少包含黑色通道和颜色依赖比例因子的变换数字图像 使用卷积运算来计算滤波后的黑色频道,以及响应于色彩依赖比例因子信道和滤波黑色频道的相应像素值形成修改后的数字图像,使得当修改后的数字图像被用于 在喷墨打印机上产生印刷图像有减少的渗墨伪影。

    Scanner metamerism correction
    83.
    发明授权
    Scanner metamerism correction 失效
    扫描器同色异谱校正

    公开(公告)号:US07751083B2

    公开(公告)日:2010-07-06

    申请号:US11694098

    申请日:2007-03-30

    CPC classification number: H04N1/6094 H04N1/603

    Abstract: A method for automatically compensating for scanner metamerism errors associated with scanning input images using a digital color image scanner, wherein the input images can be on a variety of different input media having colorants with different spectral characteristics, comprising scanning an input image on a digital color image scanner to produce a scanned image; determining one or more estimated color balance error values in a color balance parameter space by analyzing the scanned image using a color balance analysis algorithm; assigning an input medium from a set of possible input media for the scanned input image in response to the estimated color balance error values; selecting a scanner metamerism correction color transform associated with the assigned input medium; and applying the selected scanner metamerism correction color transform to the scanned image to produce a corrected image compensated for scanner metamerism errors.

    Abstract translation: 一种用于自动补偿与使用数字彩色图像扫描器扫描输入图像相关的扫描器同色异谱误差的方法,其中所述输入图像可以在具有不同光谱特性的着色剂的各种不同输入介质上,包括以数字颜色扫描输入图像 图像扫描仪产生扫描图像; 通过使用颜色平衡分析算法分析扫描图像来确定颜色平衡参数空间中的一个或多个估计的颜色平衡误差值; 响应于估计的颜色平衡误差值,从扫描的输入图像的一组可能的输入介质中分配输入介质; 选择与分配的输入介质相关联的扫描器同色异谱校正颜色变换; 以及将所选择的扫描器同色异谱校正颜色变换应用于扫描图像,以产生补偿扫描器同色异谱误差的校正图像。

    COLOR ERROR DIFFUSION WITH ERROR SIGNAL OFFSET
    84.
    发明申请
    COLOR ERROR DIFFUSION WITH ERROR SIGNAL OFFSET 有权
    带有错误信号偏移的颜色错误扩散

    公开(公告)号:US20100128313A1

    公开(公告)日:2010-05-27

    申请号:US12275705

    申请日:2008-11-21

    CPC classification number: H04N1/52

    Abstract: A method for multi-toning an input digital image having input pixels with two or more color channels to form an output digital image having modified output levels. The method includes determining modified output levels using a combined error signal formed from intermediate error signals for each color channel together with an error signal offset value, and adjusting the input levels for the nearby pixels responsive to weighted error signals.

    Abstract translation: 一种用于多输入具有两个或多个颜色通道的输入像素的输入数字图像以形成具有修改的输出电平的输出数字图像的方法。 该方法包括使用由每个颜色通道的中间误差信号形成的组合误差信号以及误差信号偏移值来确定修正的输出电平,以及响应于加权误差信号调整附近像素的输入电平。

    Selection of alternative image processing operations to maintain high image quality
    85.
    发明授权
    Selection of alternative image processing operations to maintain high image quality 有权
    选择替代图像处理操作以保持高图像质量

    公开(公告)号:US07570829B2

    公开(公告)日:2009-08-04

    申请号:US11059935

    申请日:2005-02-17

    CPC classification number: G06T5/40 G06T5/009 G06T2207/20016 H04N1/60

    Abstract: In an image enhancement method, a regular enhancement function and an aggressiveness parameter are computed using characteristics of a digital image. A first, relatively slow enhancement algorithm is applied to the digital image using the regular enhancement function, when an aggressiveness parameter is in a predetermined high range. A second, relatively fast enhancement algorithm is applied to the digital image using the regular enhancement function, when an aggressiveness parameter is in a predetermined low range. A modified enhancement function is calculated using characteristics of the digital image and is used with a second, relatively fast enhancement algorithm, when the aggressiveness parameter is in a predetermined medium range.

    Abstract translation: 在图像增强方法中,使用数字图像的特征来计算常规增强函数和侵略性参数。 当攻击性参数处于预定的高范围时,使用常规增强功能将第一相对较慢的增强算法应用于数字图像。 当攻击性参数处于预定的低范围时,使用常规增强功能将第二相对较快的增强算法应用于数字图像。 使用数字图像的特性来计算修改的增强函数,并且当攻击性参数处于预定的中等范围时,使用第二相对较快的增强算法。

    Producing an extended color gamut luminance-chrominance digital image from a captured image
    86.
    发明授权
    Producing an extended color gamut luminance-chrominance digital image from a captured image 失效
    从捕获的图像生成扩展色域亮度色度数字图像

    公开(公告)号:US07289663B2

    公开(公告)日:2007-10-30

    申请号:US10202313

    申请日:2002-07-24

    CPC classification number: H04N1/6058

    Abstract: A method for producing an extended color gamut luminance-chrominance digital image from a captured digital image includes determining an estimate of the colors of the captured digital image of an original scene and further processing to produce an extended range output RGB image value including values outside the range that can be displayed on the output image display device, and producing an extended color gamut luminance-chrominance digital image by transforming the extended range output RGB image values to a luminance-chrominance representation.

    Abstract translation: 从捕获的数字图像生成扩展色域亮度色度数字图像的方法包括确定原始场景的所捕获的数字图像的颜色的估计值,并且进一步处理以产生包括外部值的扩展范围输出RGB图像值 可以显示在输出图像显示装置上的范围,并且通过将扩展范围输出RGB图像值变换为亮度 - 色度表示来产生扩展色域亮度色度数字图像。

    Reducing ink bleed artifacts
    87.
    发明授权
    Reducing ink bleed artifacts 有权
    减少墨水泄漏的伪影

    公开(公告)号:US07234791B2

    公开(公告)日:2007-06-26

    申请号:US11114530

    申请日:2005-04-26

    CPC classification number: H04N1/58

    Abstract: A method for forming a modified digital image by modifying an input digital image having a black input color channel corresponding to a black colorant and one or more additional input color channels corresponding to additional colorants, each color channel having an (x,y) array of image pixel values, to form a modified digital image having one or more modified color channels, said modified digital image being suitable for producing a printed image having reduced ink bleed artifacts on an inkjet printer using the black and additional colorants includes forming a filtered black color channel from the black input color channel using a convolution operation, and forming the modified digital image by modifying image pixel values in one or more of the additional input color channels in response to the corresponding image pixel values of the filtered black color channel.

    Abstract translation: 一种用于通过修改具有与黑色着色剂相对应的黑色输入色彩通道的输入数字图像和与另外的着色剂相对应的一个或多个附加输入颜色通道来形成修改的数字图像的方法,每个颜色通道具有(x,y) 图像像素值,以形成具有一个或多个修改的颜色通道的修改的数字图像,所述修改的数字图像适合于使用黑色和附加着色剂在喷墨打印机上产生具有减少的排墨伪影的打印图像,包括形成滤色黑色 通过使用卷积运算从黑色输入色彩通道输出通道,并且通过响应于滤色黑色通道的相应图像像素值修改一个或多个附加输入颜色通道中的图像像素值来形成修改的数字图像。

    Representing digital images in a plurality of image processing states
    90.
    发明授权
    Representing digital images in a plurality of image processing states 有权
    代表多个图像处理状态的数字图像

    公开(公告)号:US06795585B1

    公开(公告)日:2004-09-21

    申请号:US09354808

    申请日:1999-07-16

    CPC classification number: G06T5/00 G06T11/60

    Abstract: A method for representing a digital image in a plurality of image processing states using at least one reference digital image and at least one residual image comprising the steps of manipulating an input digital image using at least one digital image processing enhancement step to form at least one additional digital image in a different image processing state; designating at least one of the digital images to be a reference digital image in a reference image processing state; and determining at least one residual image representing differences between one of the reference digital images and one of the additional digital images, whereby the residual image(s) and the reference digital image(s) can be used to form digital image(s) in different image processing states.

    Abstract translation: 一种用于使用至少一个参考数字图像和至少一个残差图像来表示多个图像处理状态中的数字图像的方法,包括以下步骤:使用至少一个数字图像处理增强步骤来操纵输入数字图像,以形成至少一个 附加的数字图像处于不同的图像处理状态; 在参考图像处理状态中将所述数字图像中的至少一个指定为参考数字图像; 以及确定表示所述参考数字图像之一与所述附加数字图像之一之间的差异的至少一个残差图像,由此残留图像和所述参考数字图像可被用于形成数字图像 不同的图像处理状态。

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