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21. 发明申请

US20060077405A1 Tonescales for geographically localized digital rendition of people 有权
标题翻译：用于地理位置数字翻译的人物音调
公开(公告)号：US20060077405A1
公开(公告)日：2006-04-13
申请号：US10899756
申请日：2004-07-27
申请人： Karin Topfer , Thomas Brust , Brent Keller , Elaine Jin
发明人： Karin Topfer , Thomas Brust , Brent Keller , Elaine Jin
IPC分类号： H04N1/60
CPC分类号： H04N1/6027
摘要： In a method and system for processing a photographic image having lightness values, L*, representing one of the colorimetric values of an original scene, the photographic image is transformed. The transformed image has a gamma as a function of CIE 1976 L*, which includes a dark region having a rising slope, a light region having a falling slope, and a plateau region having a slope constantly within 5 percent of a maximum value in said plateau region. The rising slope is at least twice as large as the absolute value of the falling slope. The plateau region is between 10 L* and 30 L* wide. Gamma is a derivative of visually perceived reproduced CIE 1976 L* versus scene CIE 1976 L*. Gamma has a maximum slope between 1.5 and 2.0.
摘要翻译：在用于处理具有亮度值的摄影图像的方法和系统中，表示原始场景的色度值之一的L *，变换摄影图像。经变换的图像具有作为CIE 1976 L *的函数的伽马，其包括具有上升斜率的暗区域，具有下降斜率的光区域和具有在所述第一区域中的最大值的5％以内的斜率的平稳区域高原地区。上升斜率至少是下降斜率绝对值的两倍。平台区域在10 L *和30 L *之间。伽玛是视觉感知再现CIE 1976 L *与场景CIE 1976 L *的衍生物。伽玛的最大斜率在1.5到2.0之间。

22. 发明授权

US06791716B1 Color image reproduction of scenes with preferential color mapping 有权
标题翻译：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
申请人： John D. Buhr , Karin Topfer
发明人： John D. Buhr , Karin Topfer
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。

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