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发明公开
CN101799929A 指定颜色层提取设备和方法 失效 - 权利终止

指定颜色层提取设备和方法
摘要：
本发明涉及指定颜色层提取方法和设备。该指定颜色层提取设备，用于从彩色图像中提取目标颜色层，所述指定颜色层提取设备包括：矢量轴设定单元，将从背景颜色中心到目标颜色中心的矢量单位化，成为矢量轴；强度层提取器，利用所述矢量轴，计算消除背景颜色影响的强度层图像；色差层提取器，利用所述矢量轴，计算消除所述背景颜色和所述目标颜色之外的其它颜色的影响的色差层图像；和复合器，把所述强度层图像和色差层图像结合，把结合的结果归一化，输出代表目标色强弱程度的灰度图像。
摘要（英）：

The invention relates to a designated color layer extracting device and a method. The designated color layer extracting device is used for extracting target color layers from a color image and comprises a vector axis setting unit, an intensity layer extractor, a color difference layer extractor and a recombiner, wherein the vector axis setting unit unitizes the vector from a background color center to a target color center to from a vector axis; the intensity layer extractor computes an intensity layer image without influence from background colors by the vector axis; the color difference layer extractor computes a color difference layer image without influence from other colors except the background colors and the target colors; and the recombiner combines the intensity layer image and the color difference layer image, uniformizes the combination result and outputs a gray level image representing the intensity of the target colors.

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