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    Image compressing method, image compressing apparatus and image forming apparatus
    31.
    发明授权
    Image compressing method, image compressing apparatus and image forming apparatus 有权
    图像压缩方法，图像压缩装置和图像形成装置

    公开(公告)号：US08390888B2

    公开(公告)日：2013-03-05

    申请号：US12827930

    申请日：2010-06-30

    申请人： Toyohisa Matsuda

    发明人： Toyohisa Matsuda

    IPC分类号： G06F15/00

    CPC分类号： G03G15/011 ,  G03G15/043 ,  G03G15/50 ,  G06T9/00 ,  H04N1/642 ,  H04N19/17 ,  H04N19/176

    摘要： A foreground layer generating unit generates a foreground layer on the basis of a foreground mask generated by a foreground mask generating unit and an original image. A binary image processing unit generates N binary images corresponding to N kinds of foreground identifiers on the basis of the foreground layer, and sets a plurality of tiles for each of the N binary images. Further, the binary image processing unit determines whether or not adjacent tiles are to be merged, and then sets tiles obtained by merging tiles determined to be merged, and leaving tiles determined not to be merged as they are. An image compressing unit cuts out rectangular regions from the individual set tiles by employing the binary images, and compresses the rectangular regions.

    摘要翻译： 前景层生成单元基于由前景掩模生成单元和原始图像生成的前景掩码来生成前景层。 二进制图像处理单元基于前景层生成与N种前景标识符对应的N个二进制图像，并且为N个二进制图像中的每一个设置多个瓦片。 此外，二进制图像处理单元确定是否合并相邻的图块，然后设置通过合并确定为被合并的图块而获得的图块，并且确定不被合并的图块。 图像压缩单元通过采用二进制图像从单独的瓦片切出矩形区域，并压缩矩形区域。

    Image processing apparatus, image display apparatus, image forming apparatus, image processing method and storage medium
    32.
    发明申请
    Image processing apparatus, image display apparatus, image forming apparatus, image processing method and storage medium 有权
    图像处理装置，图像显示装置，图像形成装置，图像处理方法和存储介质

    公开(公告)号：US20090148059A1

    公开(公告)日：2009-06-11

    申请号：US12316185

    申请日：2008-12-10

    申请人： Toyohisa Matsuda

    发明人： Toyohisa Matsuda

    IPC分类号： G06K9/00

    CPC分类号： G06T9/00 ,  G06T9/008 ,  G06T9/20 ,  H04N19/94

    摘要： With the use of a vector quantization technique, an index image, which is obtained by replacing an image on a block-by-block basis, each block consisting of a predetermined number of pixels, with any of a plurality of different pixel patterns and representing the pixel patterns by index values of the respective pixel patterns, is decoded by referring to a code book containing the pixel patterns and the index values of the pixel patterns in association with each other. When decoding an index image on the block-by-block basis into pixel patterns corresponding to the index values, the pixel pattern of each block is scaled, and additionally pixels near a contour in the pixel pattern after scaling are redrawn based on contour vector information corresponding to the pixel pattern.

    摘要翻译： 通过使用矢量量化技术，通过以块为单位替换图像而获得的索引图像由具有多个不同像素图案中的任一个的预定数量的像素组成的每个块组成，并且代表 通过参考包含像素图案的代码簿和相关联的像素图案的索引值对通过各个像素图案的索引值的像素图案进行解码。 当将基于逐块的索引图像解码为与索引值相对应的像素图案时，每个块的像素图案被缩放，并且另外基于轮廓矢量信息重新绘制缩放后的像素图案中的轮廓附近的像素 对应于像素图案。