Population attribute compression
    1.
    发明授权
    Population attribute compression 失效
    人口属性压缩

    公开(公告)号:US5467110A

    公开(公告)日:1995-11-14

    申请号:US589563

    申请日:1990-09-28

    IPC分类号: G09G5/06 G09G1/28

    CPC分类号: G09G5/06

    摘要: An image population having a large number of attributes is processed to form a display population with a predetermined smaller number of attributes that represent the larger number of attributes. In a particular application, the color values in an image are compressed for storage in a discrete look-up table (LUT). Color space containing the LUT color values is successively subdivided into smaller volumes until a plurality of volumes are formed, each having no more than a preselected maximum number of color values. Image pixel color values can then be rapidly placed in a volume with only a relatively few LUT values from which a nearest neighbor is selected. Image color values are assigned 8 bit pointers to their closest LUT value whereby data processing requires only the 8 bit pointer value to provide 24 bit color values from the LUT.

    摘要翻译: 处理具有大量属性的图像群体以形成具有表示较大数量的属性的预定较小数量的属性的显示群体。 在特定应用中,图像中的颜色值被压缩以便在离散查找表(LUT)中存储。 包含LUT颜色值的颜色空间被连续细分成更小的体积,直到形成多个体积,每个体积不超过预选的最大颜色值数。 然后可以将图像像素颜色值快速放置在仅具有相对较少的LUT值的卷中,从其中选择最近邻。 图像颜色值被分配到它们最接近的LUT值的8位指针,由此数据处理仅需要8位指针值来从LUT提供24位颜色值。

    Digital color representation
    2.
    发明授权
    Digital color representation 失效
    数字颜色表示

    公开(公告)号:US5130701A

    公开(公告)日:1992-07-14

    申请号:US350675

    申请日:1989-05-12

    IPC分类号: G09G5/06

    CPC分类号: G09G5/06

    摘要: An image population having a large number of attributes is processed to form a display population with a predetermined smaller number of attributes which represent the larger number of attributes. In a particular application, the color values in an image are compressed for storage in a discrete lookup table (LUT) where an 8-bit data signal is enabled to form a display of 24-bit color values. The LUT is formed in a sampling and averaging process from the image color values with no requirement to define discrete Voronoi regions for color compression. Image color values are assigned 8-bit pointers to their closest LUT value whereby data processing requires only the 8-bit pointer value to provide 24-bit color values from the LUT.

    摘要翻译: 处理具有大量属性的图像群体以形成具有表示较大数量属性的预定较小数量的属性的显示群体。 在特定应用中,图像中的颜色值被压缩以存储在离散查找表(LUT)中,其中8位数据信号被使能以形成24位色彩值的显示。 LUT根据图像颜色值在采样和平均处理中形成,而不需要定义用于颜色压缩的离散Voronoi区域。 图像颜色值被分配到它们最接近的LUT值的8位指针,由此数据处理仅需要8位指针值来从LUT提供24位颜色值。