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1. 发明授权

US06753987B1 Systems and methods to determine a contrast and a brightness adjusted system tone reproduction curve 有权
标题翻译：系统和方法确定对比度和亮度调节系统色调再现曲线
公开(公告)号：US06753987B1
公开(公告)日：2004-06-22
申请号：US09512888
申请日：2000-02-25
申请人： Charles E. Farnung , Ramesh Nagarajan , Francis Tse , Julie A. Fisher , Regina M. Loverde , Ralph H. Huedepohl
发明人： Charles E. Farnung , Ramesh Nagarajan , Francis Tse , Julie A. Fisher , Regina M. Loverde , Ralph H. Huedepohl
IPC分类号： G03F308
CPC分类号： H04N1/407
摘要： Contrast and brightness adjustments can be made to a system tone reproduction curve. These contrast and brightness adjustments can be made, for example, by user, via a user input device, or alternatively, automatically detected, based on an image analysis routine. By determining one or more generic tone reproduction curves, and interpolating these tone reproduction curves with the system tone reproduction curve, a new, adjusted tone reproduction curve is produced. This allows for a determination of the adjusted system tone reproduction curve as opposed to calculating and restoring the families of system tone reproduction curves adjusted for all the possible combinations of contrast and brightness.
摘要翻译：可以对系统色调再现曲线进行对比度和亮度调整。这些对比度和亮度调节可以例如由用户经由用户输入设备进行，或者可以基于图像分析程序自动检测。通过确定一个或多个通用色调再现曲线，并用系统色调再现曲线内插这些色调再现曲线，产生新的调节色调再现曲线。这允许确定调整的系统色调再现曲线，而不是计算和恢复针对对比度和亮度的所有可能组合而调整的系统色调再现曲线的族。

2. 发明授权

US06618171B1 Black point adjustment based on image background 有权
标题翻译：基于图像背景的黑点调整
公开(公告)号：US06618171B1
公开(公告)日：2003-09-09
申请号：US09512887
申请日：2000-02-25
申请人： Francis Tse , Ramesh Nagarajan , Charles E. Farnung
发明人： Francis Tse , Ramesh Nagarajan , Charles E. Farnung
IPC分类号： H04N140
CPC分类号： H04N1/4074
摘要： A digital scanner or copier is provided that can dynamically adjust the black point of an image to be scanned based on detected background level of the document. A pre-scan acts on a small scanning window near a leading edge of the document to obtain a histogram of grey-level values. From this, the background level of the document can be obtained to determine a white point of the image. Additionally, a black point of the image is originally set to a default offset value. However, an adjustment factor based on the detected white point is used to adjust the default offset value to a value that increases the dynamic range of the output image, while still maintaining solid black for black areas of the image.
摘要翻译：提供数字扫描仪或复印机，其可以基于检测到的文档的背景水平动态地调整要扫描的图像的黑点。预扫描作用于文档前缘附近的小扫描窗口，以获得灰度值的直方图。由此，可以获得文档的背景级别以确定图像的白点。此外，图像的黑点最初设置为默认偏移值。然而，使用基于检测到的白点的调整因子来将默认偏移值调整为增加输出图像的动态范围的值，同时仍保持图像的黑色区域的实心黑色。

3. 发明授权

US06970598B1 Data processing methods and devices 失效
标题翻译：数据处理方法和设备
公开(公告)号：US06970598B1
公开(公告)日：2005-11-29
申请号：US09488572
申请日：2000-01-21
申请人： Ramesh Nagarajan , Julie A. Fisher , Charles E. Farnung , Francis K. Tse
发明人： Ramesh Nagarajan , Julie A. Fisher , Charles E. Farnung , Francis K. Tse
IPC分类号： G06K9/34 , H04N1/60
CPC分类号： H04N1/6072 , G06T7/11 , G06T2207/20092 , G06T2207/30176
摘要： For segmenting an image, a segmentation mode is selected by a user. If the segmentation mode is the automatic segmentation mode, the user is allowed to input a new value for automatic segmentation parameters. Thus, the image is segmented using the automatic segmentation parameter values, including any new automatic segmentation parameter values.
摘要翻译：为了分割图像，用户选择分割模式。如果分割模式是自动分割模式，则允许用户输入用于自动分割参数的新值。因此，使用自动分割参数值来分割图像，包括任何新的自动分割参数值。

4. 发明授权

US06842266B1 Systems and methods that determine an image processing system tone reproduction curve 失效
标题翻译：确定图像处理系统色调再现曲线的系统和方法
公开(公告)号：US06842266B1
公开(公告)日：2005-01-11
申请号：US09512889
申请日：2000-02-25
申请人： Charles E. Farnung , Ramesh Nagarajan , Francis Tse , Julie A. Fisher , Regina M. Loverde
发明人： Charles E. Farnung , Ramesh Nagarajan , Francis Tse , Julie A. Fisher , Regina M. Loverde
IPC分类号： H04N1/407 , B41B13/00 , G06K15/00 , H04N1/40 , H04N1/405
CPC分类号： H04N1/407
摘要： An image processing system receives image input terminal information and image output terminal information. Based on the content of the image input terminal information and the image output terminal information a new system tone reproduction curve is determined. This device independent methodology allows system tone reproduction curves to be generated as needed, and allows the additional flexibility for changes in the image input terminal or the image output terminal.
摘要翻译：图像处理系统接收图像输入终端信息和图像输出终端信息。基于图像输入端子信息和图像输出端子信息的内容，确定新的系统色调再现曲线。该设备独立的方法允许根据需要生成系统色调再现曲线，并且允许对图像输入端子或图像输出端子的变化的附加灵活性。

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