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    Apparatus and method for performing color conversion using color cache in image processing system
    3.
    发明申请
    Apparatus and method for performing color conversion using color cache in image processing system 审中-公开
    在图像处理系统中使用彩色高速缓存进行颜色转换的装置和方法

    公开(公告)号：US20080025602A1

    公开(公告)日：2008-01-31

    申请号：US11880906

    申请日：2007-07-25

    申请人： Seok-Jin Won ,  Sang-Wook Oh ,  Yun-Je Oh ,  Sung-Dae Cho

    发明人： Seok-Jin Won ,  Sang-Wook Oh ,  Yun-Je Oh ,  Sung-Dae Cho

    IPC分类号： G06K9/00

    CPC分类号： H04N1/60 ,  H04N1/6019

    摘要： An apparatus and method for performing color conversion using a color cache is disclosed. The apparatus includes a color converter for acquiring an after conversion color by performing a color conversion operation of a color of a predetermined pixel, a color cache for storing before conversion colors and after conversion colors of previous pixels color-converted by the color converter and searching for the same color by comparing the color of the predetermined pixel to the stored colors before conversion when the predetermined pixel is input, and a controller for transmitting the color of the predetermined pixel to the color cache, controlling the color cache to search whether the same color as that of the predetermined pixel is stored in the color cache, acquiring a after conversion color from the color converter or the color cache according to the search result, and transmitting the color after conversion to the outside.

    摘要翻译： 公开了一种使用彩色高速缓存进行颜色转换的装置和方法。 该装置包括：颜色转换器，用于通过执行预定像素的颜色的颜色转换操作，用于在转换颜色之前存储的颜色高速缓存器和由颜色转换器进行颜色转换的先前像素的转换颜色之后获取后转换颜色 对于相同的颜色，通过在预定像素被输入时将预定像素的颜色与转换前的存储颜色进行比较，以及用于将预定像素的颜色发送到彩色高速缓存的控制器，控制彩色高速缓存以搜索是否相同 根据搜索结果从颜色转换器或颜色高速缓存获取后转换颜色，并将转换后的颜色发送到外部。

    Color conversion method using a colors look-up table
    7.
    发明授权
    Color conversion method using a colors look-up table 失效
    颜色转换方法使用颜色查找表

    公开(公告)号：US07826111B2

    公开(公告)日：2010-11-02

    申请号：US11635952

    申请日：2006-12-08

    申请人： Seok-Jin Won ,  Sung-Dae Cho ,  Young-Min Jeong ,  Yun-Je Oh

    发明人： Seok-Jin Won ,  Sung-Dae Cho ,  Young-Min Jeong ,  Yun-Je Oh

    IPC分类号： G03F3/00 ,  G06T9/00 ,  G09G5/06

    CPC分类号： H04N1/60 ,  H04N1/6005

    摘要： Disclosed is color conversion method using a color look-up table. The method includes the steps of: generating a color look-up table using information on the difference of each channel before and after a conversion of each color; and converting the colors using the generated color look-up table. The step of generating the color look-up table includes identifying the maximum difference value among several difference values and generating a first compressed table to initially compress the difference values using the maximum difference value. Further, the step of generating the color look-up table further includes determining, using a predetermined algorithm, whether precedence bits can be removed in the difference values stored in the first compressed table, if yes, removing the corresponding checked bits and storing the converted channel value in a separate auxiliary color table and, if no, storing an index relating to the auxiliary color table as the corresponding difference value, and generating a secondary compressed table that secondarily compresses the initially compressed difference value and adding type information that indicates if information stored as each difference value is the difference value or the index.

    摘要翻译： 公开了使用颜色查找表的颜色转换方法。 该方法包括以下步骤：使用关于每个颜色的转换之前和之后的每个通道的差异的信息来生成颜色查找表; 并使用生成的颜色查找表转换颜色。 生成颜色查找表的步骤包括识别几个差值之间的最大差值，并且生成第一压缩表以使用最大差值最初压缩差值。 此外，生成颜色查找表的步骤还包括使用预定算法来确定是否可以在存储在第一压缩表中的差值中去除优先位，如果是，则移除相应的检查位并存储转换的 通道值，并且如果否，则存储与辅助颜色表相关的索引作为相应的差值，并且生成二次压缩表，其二次压缩初始压缩的差值，并且添加指示信息的类型信息 存储为每个差值是差值或索引。

    Color conversion method using a colors look-up table
    8.
    发明申请
    Color conversion method using a colors look-up table 失效
    颜色转换方法使用颜色查找表

    公开(公告)号：US20070177174A1

    公开(公告)日：2007-08-02

    申请号：US11635952

    申请日：2006-12-08

    申请人： Seok-Jin Won ,  Sung-Dae Cho ,  Young-Min Jeong ,  Yun-Je Oh

    发明人： Seok-Jin Won ,  Sung-Dae Cho ,  Young-Min Jeong ,  Yun-Je Oh

    IPC分类号： H04N1/60

    CPC分类号： H04N1/60 ,  H04N1/6005

    摘要： Disclosed is color conversion method using a color look-up table. The method includes the steps of: generating a color look-up table using information on the difference of each channel before and after a conversion of each color; and converting the colors using the generated color look-up table. The step of generating the color look-up table includes identifying the maximum difference value among several difference values and generating a first compressed table to initially compress the difference values using the maximum difference value. Further, the step of generating the color look-up table further includes determining, using a predetermined algorithm, whether precedence bits can be removed in the difference values stored in the first compressed table, if yes, removing the corresponding checked bits and storing the converted channel value in a separate auxiliary color table and, if no, storing an index relating to the auxiliary color table as the corresponding difference value, and generating a secondary compressed table that secondarily compresses the initially compressed difference value and adding type information that indicates if information stored as each difference value is the difference value or the index.

    摘要翻译： 公开了使用颜色查找表的颜色转换方法。 该方法包括以下步骤：使用关于每个颜色的转换之前和之后的每个通道的差异的信息来生成颜色查找表; 并使用生成的颜色查找表转换颜色。 生成颜色查找表的步骤包括识别几个差值之间的最大差值，并且生成第一压缩表以使用最大差值最初压缩差值。 此外，生成颜色查找表的步骤还包括使用预定算法来确定是否可以在存储在第一压缩表中的差值中去除优先位，如果是，则移除相应的检查位并存储转换的 通道值，并且如果否，则存储与辅助颜色表相关的索引作为相应的差值，并且生成二次压缩表，其二次压缩初始压缩的差值，并且添加指示信息的类型信息 存储为每个差值是差值或索引。

    Color conversion method based on error correction table
    10.
    发明申请
    Color conversion method based on error correction table 有权
    基于误差校正表的颜色转换方法

    公开(公告)号：US20070171445A1

    公开(公告)日：2007-07-26

    申请号：US11635114

    申请日：2006-12-07

    申请人： Seok-Jin Won ,  Sung-Dae Cho ,  Young-Min Jeong ,  Yun-Je Oh

    发明人： Seok-Jin Won ,  Sung-Dae Cho ,  Young-Min Jeong ,  Yun-Je Oh

    IPC分类号： H04N1/60

    CPC分类号： H04N1/603

    摘要： Disclosed is a color conversion method, the method including the steps of (a) converting a color using an approximation technique, and (b) correcting an error of the color using a preset error correction table containing information regarding a difference between a color channel based on an original conversion formula and a color channel based on the approximation technique.

    摘要翻译： 公开了一种颜色转换方法，该方法包括以下步骤：（a）使用近似技术转换颜色;以及（b）使用预设的误差校正表来校正颜色的误差，所述预设误差校正表包含关于基于颜色的 基于原始转换公式和基于近似技术的颜色通道。