公开(公告)号：US20080024805A1

公开(公告)日：2008-01-31

申请号：US11902778

申请日：2007-09-25

申请人： Kevin Andresen ,  Kok Chen

发明人： Kevin Andresen ,  Kok Chen

IPC分类号： G06F15/00 ,  G03F3/08

CPC分类号： G06K15/02 ,  G06K15/1825 ,  G06K2215/0094 ,  G06T11/001 ,  H04N1/58

摘要： Undesirable artifacts appearing in color images, such as blooming or smudging around the edges of text, are avoided through selective reduction of the color gamut for objects which form the image. Individual component color values are modified by taking into account combinations of colors and their effect upon the artifacts to be eliminated. Only those parameter values which contribute to the artifact are modified. Other parameter values are left intact, to maintain the original image characteristics. When a color value is modified, all components of that color are modified in a symmetrical manner, to preserve the hue of the original color. The impact on the image is further minimized by selectively applying color correction only to those objects in which the artifact is pronounced.

摘要翻译： 通过选择性地减少形成图像的对象的色域来避免出现在彩色图像中的不期望的伪像，例如在文本边缘处的起霜或污迹。 通过考虑颜色的组合及其对待消除的伪影的影响来修改单个组件颜色值。 只修改有助于工件的参数值。 其他参数值保持原样，以保持原始图像特征。 当颜色值被修改时，该颜色的所有成分都以对称方式修改，以保持原始颜色的色调。 通过选择性地将色彩校正仅仅应用于伪造物的那些对象来进一步减小对图像的影响。