Color image reproduction of scenes with preferential color mapping and scene-dependent tone scaling
    1.
    发明授权
    Color image reproduction of scenes with preferential color mapping and scene-dependent tone scaling 有权
    具有优惠色彩映射和场景相关音调缩放的场景的彩色图像再现

    公开(公告)号:US06594388B1

    公开(公告)日:2003-07-15

    申请号:US09578463

    申请日:2000-05-25

    IPC分类号: G06K900

    CPC分类号: H04N1/6027 H04N1/6072

    摘要: A method for enhancing the hue and lightness characteristics of a digital color image, the digital color image having pixel values from which digital luminance and color difference values can be deduced, includes the steps of: deducing digital luminance and digital color difference values for pixels of the digital color image; using the pixels of the digital color image to calculate an image dependent transform; using the image dependent transform to modify the digital luminance values for pixels of the digital color image to form modified luminance values; calculating a color transform that modifies the original digital color difference values in a manner that consistently and smoothly moves the values toward or away from predetermined digital color difference values; and using the color transform to modify the original color difference values for pixels of the digital color image to produce modified color difference values.

    摘要翻译: 一种用于增强数字彩色图像的色相和亮度特性的方法,具有可从其推导数字亮度和色差值的像素值的数字彩色图像包括以下步骤:将数字亮度和数字色差值推算为 数字彩色图像; 使用数字彩色图像的像素来计算图像相关变换; 使用图像相关变换来修改数字彩色图像的像素的数字亮度值,以形成修正的亮度值; 计算以一致且平滑地将数值移动到或远离预定数字色差值的方式修改原始数字色差值的颜色变换; 并使用颜色变换来修改数字彩色图像的像素的原始色差值,以产生修改的色差值。

    Color image reproduction of scenes with preferential color mapping
    3.
    发明授权
    Color image reproduction of scenes with preferential color mapping 有权
    具有优惠色彩映射的场景的彩色图像再现

    公开(公告)号:US06791716B1

    公开(公告)日:2004-09-14

    申请号:US09506712

    申请日:2000-02-18

    IPC分类号: G06F312

    CPC分类号: H04N1/628 H04N1/6075

    摘要: A method of automatically processing a digital color image, the digital color image having pixels values from which lightness, chroma, and hue values of the image can be deduced according to a predetermined transform, includes the steps of: transforming the pixel values to lightness, chroma and hue values; transforming the hue values by consistently and smoothly moving the hue values within a predetermined region of color space toward or away from hues of predetermined preferred colors; and consistently and smoothly shifting the hue values in a predetermined region of color space to avoid predetermined objectionable colors.

    摘要翻译: 一种自动处理数字彩色图像的方法,具有根据预定变换可以推导图像的亮度,色度和色调值的像素值的数字彩色图像包括以下步骤:将像素值变换为亮度, 色度和色调值; 通过一致地平滑地将色彩空间的预定区域内的色调值向着或远离预定的优选颜色的色调来变换色调值; 并且在色彩空间的预定区域中一致地平滑地移动色调值,以避免预定的令人反感的颜色。

    Method and apparatus for modifying a portion of an image in accordance with colorimetric parameters
    4.
    发明授权
    Method and apparatus for modifying a portion of an image in accordance with colorimetric parameters 有权
    用于根据比色参数修改图像的一部分的方法和装置

    公开(公告)号:US06396599B1

    公开(公告)日:2002-05-28

    申请号:US09216900

    申请日:1998-12-21

    IPC分类号: G06K1500

    摘要: A method and apparatus for modifying images. The method includes the steps of analyzing a digital image file of an image so as to identify at least one predetermined colorimetric parameter; and automatically modifying that portion of said image having said at least one predetermined colorimetric parameter to a second predetermined colormetric parameter so as to produce a modified digital image.

    摘要翻译: 一种用于修改图像的方法和装置。 该方法包括以下步骤:分析图像的数字图像文件,以便识别至少一个预定的比色参数; 并且将具有所述至少一个预定比色参数的所述图像的该部分自动地修改为第二预定比色参数,以便产生经修改的数字图像。

    Digital photofinishing system including film under exposure gamma, scene balance, contrast normalization, and image sharpening digital image processing
    5.
    发明授权
    Digital photofinishing system including film under exposure gamma, scene balance, contrast normalization, and image sharpening digital image processing 失效
    数字照相洗印系统,包括曝光下的胶片,场景平衡,对比度归一化和图像锐化数字图像处理

    公开(公告)号:US06233069B1

    公开(公告)日:2001-05-15

    申请号:US09086333

    申请日:1998-05-28

    IPC分类号: G03F308

    摘要: A method of digital photofinishing comprising the steps of: producing a digital color image in optical printing densities of a color image captured on photographic media; processing the digital color image with an underexposure gamma correction algorithm, a scene balance algorithm, and a contrast normalization algorithm to produce a processed digital color image; mapping the processed digital color image through a hard copy media characteristic curve to produce a mapped digital color image mapped to print densities of the hard copy media; sharpening the mapped digital color image with a sharpening algorithm optimized to avoid unacceptable artifacts; and digitally printing the sharpened digital color image onto hard copy media.

    摘要翻译: 一种数字照相洗印的方法,包括以下步骤:在照相介质上捕获的彩色图像的光学打印密度中产生数字彩色图像; 使用曝光不足的伽马校正算法,场景平衡算法和对比度归一化算法来处理数字彩色图像以产生经处理的数字彩色图像; 将经处理的数字彩色图像通过硬拷贝介质特征曲线映射以产生映射到打印密度的硬拷贝介质的映射数字彩色图像; 用优化的锐化算法锐化映射的数字彩色图像以避免不可接受的伪像; 并将锐化的数字彩色图像数字打印到硬拷贝介质上。

    Photographic element containing emulsion with particular blue sensitivity
    6.
    发明授权
    Photographic element containing emulsion with particular blue sensitivity 失效
    含有特殊蓝色感光度的含乳液的摄影元件

    公开(公告)号:US5576157A

    公开(公告)日:1996-11-19

    申请号:US473685

    申请日:1995-06-07

    CPC分类号: G03C7/3041

    摘要: A color photographic negative element which has a transparent base and a blue sensitive silver halide emulsion layer. The foregoing blue sensitive layer meets each of the following spectral sensitivity requirements:S.sub.max (426-444 nm) .gtoreq.65%S.sub.max(400-500 nm)IS.sub.(425-450) .gtoreq.25%(IS.sub.(400-500))in which S.sub.max(426-444 nm) is the maximum sensitivity between 426 to 444 nm, S.sub.max(400-500 nm) is the maximum sensitivity between 400-500 nm, IS.sub.(425-450) is the integrated spectral sensitivity of the blue sensitive layer from 425 to 450 nm, and IS.sub.(400-500) is the integrated spectral sensitivity of the blue sensitive layer in the region 400-500 nm. A method for printing a negative obtained from exposing and processing an element of the foregoing type, on automatic printers which automatically compensate for color bias, is also provided.

    摘要翻译: 具有透明基底和蓝色感光卤化银乳剂层的彩色照相底片。 上述蓝色敏感层满足以下光谱灵敏度要求:Smax(426-444nm)> / = 65%Smax(400-500nm)IS(425-450)> / = 25%(IS(400-500 )),其中Smax(426-444nm)是426至444nm之间的最大灵敏度,Smax(400-500nm)是400-500nm之间的最大灵敏度,IS(425-450)是集成光谱灵敏度 蓝色感光层从425nm到450nm,IS(400-500)是蓝色敏感层在400-500nm区域的集成光谱灵敏度。 还提供了一种用于在自动补偿色偏的自动打印机上打印从上述类型的元件曝光和处理得到的负片的方法。

    Photographic element containing particular blue sensitized tabular grain
emulsion
    7.
    发明授权
    Photographic element containing particular blue sensitized tabular grain emulsion 失效
    含有特定蓝色敏化片状颗粒乳剂的摄影元件

    公开(公告)号:US5460928A

    公开(公告)日:1995-10-24

    申请号:US228462

    申请日:1994-04-15

    CPC分类号: G03C7/3041

    摘要: A color photographic element has a blue sensitive tabular grain silver halide emulsion layer the halide content of which is less than 80% chloride and which has a tabularity of at least 8. The foregoing emulsion is sensitized such that the wavelength of maximum sensitivity of the emulsion between 400-500 nm (".lambda..sub.Bmax "), the sensitivity at 485 nm ("S.sub.485 "), the sensitivity at 410 nm ("S.sub.410 "), and the sensitivity at .lambda..sub.Bmax (".lambda..sub.Bmax "), are defined by:430 nm.gtoreq..lambda..sub.Bmax .gtoreq.440 nm or 450 nm.gtoreq..lambda..sub.Bmax .gtoreq.480 nmandS.sub.485 .gtoreq.50% (S.sub.Bmax)S.sub.410 .gtoreq.60% (S.sub.Bmax)and the maximum sensitivity of the emulsion between 430-440 nm ("S.sub.(430-440)max "), and the maximum sensitivity between 450-480 nm ("S.sub.(450-480)max "), have the following relationship:90% (S.sub.(450-480)max).gtoreq.S.sub.(430-440)max .gtoreq.110%(S.sub.(450-480)max).The above element is particularly useful in a process of printing a color negative on an automatic printer which compensates for color saturation of a subject negative relative to a standard negative.

    摘要翻译: 彩色照相元件具有蓝色敏感的片状粒状卤化银乳剂层,其卤化物含量小于80%氯化物,并且具有至少8的平板状。上述乳液被致敏,使得乳液的最大灵敏度的波长 在400-500nm(“λBmax”)之间,在485nm处的灵敏度(“S485”),410nm处的灵敏度(“S410”)和λBmax(“λBmax”)的灵敏度由 (SBmax)/ = 60%(SBmax),并且最大灵敏度为 430-440nm之间的乳液(“S(430-440)max”)和450-480nm(“S(450-480)max”)之间的最大灵敏度具有以下关系:90%(S( 450-480)max)> / = S(430-440)max> / = 110%(S(450-480)max)。 上述元件在自动打印机上印刷彩色负片的过程中特别有用,该自动打印机补偿被摄体的色彩饱和度相对于标准负像素的负值。

    Method of electronically processing an image from a color negative film element
    8.
    发明授权
    Method of electronically processing an image from a color negative film element 失效
    从彩色底片元件电子处理图像的方法

    公开(公告)号:US06274299B1

    公开(公告)日:2001-08-14

    申请号:US09104567

    申请日:1998-06-25

    IPC分类号: G03C7333

    CPC分类号: G03C7/3041

    摘要: A method is disclosed for electronically processing an image scanned from a scene exposed onto a color negative photographic element. The element is especially capable of producing images that, when scanned, converted to electronic form, corrected and then converted to a viewable form, exhibit excellent color, reduced granularity and improved sharpness. The photographic elements contain blue, green and red recording layer units capable of forming spectrally differentiated dye images. The layer units are substantially free of colored masking coupler, and each exhibit a dye image gamma of less than 1.5. The element exhibits an exposure latitude of at least 2.7 log E. The gamma ratios of the blue, green and red recording layer units are between 0.80 and 1.2. A method for producing a viewable image is additionally disclosed.

    摘要翻译: 公开了一种用于电子处理从暴露于彩色负面照相元件上的场景扫描的图像的方法。 该元件特别能够产生图像,当被扫描时,被转换成电子形式,被校正,然后转换成可视形式,表现出优异的颜色,降低的粒度和改善的清晰度。 摄影元件含有蓝色,绿色和红色记录层单元,能够形成光谱分化的染料图像。 层单元基本上没有着色掩蔽成色剂,并且各自表现出小于1.5的染料图像γ。 该元件的曝光宽容度至少为2.7logE。蓝色,绿色和红色记录层单元的伽马比值在0.80和1.2之间。 另外公开了一种用于产生可视图像的方法。

    Digital photofinishing system including digital image processing of
alternative capture color photographic media
    9.
    发明授权
    Digital photofinishing system including digital image processing of alternative capture color photographic media 失效
    数码相片洗印系统,包括数码影像处理的替代拍摄彩色摄影媒体

    公开(公告)号:US6163389A

    公开(公告)日:2000-12-19

    申请号:US104548

    申请日:1998-06-25

    IPC分类号: H04N1/00 H04N1/60 H04N1/46

    摘要: A method of digital photofinishing comprising the steps of: producing a digital color image in printing densities of a color image captured on alternative capture photographic media; first mapping the printing densities of the alternative capture photographic media to the printing densities that would have been obtained for reference color photographic media; processing the mapped digital color image with a scene balance algorithm to produce a processed digital color image; second mapping the processed digital color image through a hard copy media characteristic curve to produce a mapped digital color image mapped to print densities of the hard copy media; sharpening the mapped digital color image with a sharpening algorithm optimized to avoid unacceptable artifacts; and digitally printing the sharpened digital color image onto hard copy media.

    摘要翻译: 一种数字照相洗印的方法,包括以下步骤:在打印在替代捕获照相介质上拍摄的彩色图像的密度中产生数字彩色图像; 首先将替代捕获照相介质的印刷密度映射到参考彩色照相介质所获得的印刷密度; 用场景平衡算法处理映射的数字彩色图像以产生经处理的数字彩色图像; 第二次通过硬拷贝介质特性曲线映射经处理的数字彩色图像,以产生映射到打印密度的硬拷贝介质的映射数字彩色图像; 用优化的锐化算法锐化映射的数字彩色图像以避免不可接受的伪像; 并将锐化的数字彩色图像数字打印到硬拷贝介质上。

    Color image reproduction of scenes with preferential tone mapping
    10.
    发明授权
    Color image reproduction of scenes with preferential tone mapping 失效
    具有优惠色调映射的场景的彩色图像再现

    公开(公告)号:US5300381A

    公开(公告)日:1994-04-05

    申请号:US950871

    申请日:1992-09-24

    CPC分类号: H04N1/407 G03B27/735

    摘要: A system and method of image reproduction in color with preferential tone mapping in which the image reproduction is subjected to a scene parameter transformation which when taken in conjunction with untransformed characteristics of the image reproduction system and method results in a reproduced tone mapping having instantaneous gamma values of viewed reproduction density relative to density of the original scene which are greater than 1.0 and less than 1.0 plus 0.35 times scene exposure density over a scene exposure density range of from 0.6 to 1.45 as measured relative to a zero density, 100% diffuse reflector in the original scene. Preferably, the instantaneous gamma values within this scene exposure density range further lie substantially within a range of values subtended by an angle of 14.degree. as measured from a reference point at 0.0 scene exposure density and 1.0 viewed reproduction density gradient.

    摘要翻译: 具有优先色调映射的彩色图像再现系统和方法,其中图像再现受到场景参数变换,当与图像再现系统和方法的未转换特性相结合时,该场景参数变换产生具有瞬时伽马值的再现色调映射 在相对于零密度测量的0.6至1.45的场景曝光密度范围内,相对于原始场景的密度观察到的大于1.0且小于1.0的场景曝光密度的再现浓度相对于原始场景的浓度为0.35倍,100%漫反射器 原来的场景。 优选地,在场景曝光浓度范围内的瞬时伽马值进一步基本上在从0.0场景曝光密度和1.0观看再现密度梯度的参考点测量的对角度为14度的值的范围内。