Method and system for resizing an image
    1.
    发明授权
    Method and system for resizing an image 有权
    调整图像大小的方法和系统

    公开(公告)号:US08873884B2

    公开(公告)日:2014-10-28

    申请号:US12898755

    申请日:2010-10-06

    IPC分类号: G06K9/32 G06K9/00 G06T3/40

    CPC分类号: G06T3/4084

    摘要: There is disclosed a method and system for resizing a digital image wherein a RGB image is converted into an YCbCr image (Y, Cb, Cr planes). Thereafter, a discrete cosine transform (DCT), followed by a specific inverse cosine transform (IDCT) is performed on each row/column of the Y, Cb, Cr planes. The mentioned specific operation corresponds to a type of homothetic matrix, which dimensions are defined by a scaling factor. In order to produce a scaled image, the scaled Y, Cb, Cr images are transformed to an RGB image for display.

    摘要翻译: 公开了一种用于调整数字图像大小的方法和系统,其中RGB图像被转换成YCbCr图像(Y,Cb,Cr平面)。 此后,在Y,Cb,Cr平面的每行/列上执行离散余弦变换(DCT),随后进行特定的反余弦变换(IDCT)。 所提及的具体操作对应于同型矩阵的类型,其尺寸由缩放因子定义。 为了产生缩放图像,将缩放的Y,Cb,Cr图像变换为RGB图像进行显示。

    METHOD AND SYSTEM FOR RESIZING AN IMAGE
    2.
    发明申请
    METHOD AND SYSTEM FOR RESIZING AN IMAGE 有权
    用于重建图像的方法和系统

    公开(公告)号:US20120087582A1

    公开(公告)日:2012-04-12

    申请号:US12898755

    申请日:2010-10-06

    IPC分类号: G06K9/32 G06K9/00

    CPC分类号: G06T3/4084

    摘要: There is disclosed a method and system for resizing a digital image wherein a RGB image is converted into an YCbCr image (Y, Cb, Cr planes). Thereafter, a discrete cosine transform (DCT), followed by a specific inverse cosine transform (IDCT) is performed on each row/column of the Y, Cb, Cr planes. The mentioned specific operation corresponds to a type of homothetic matrix, which dimensions are defined by a scaling factor. In order to produce a scaled image, the scaled Y, Cb, Cr images are transformed to an RGB image for display.

    摘要翻译: 公开了一种用于调整数字图像大小的方法和系统,其中RGB图像被转换成YCbCr图像(Y,Cb,Cr平面)。 此后,在Y,Cb,Cr平面的每行/列上执行离散余弦变换(DCT),随后进行特定的反余弦变换(IDCT)。 所提及的具体操作对应于同型矩阵的类型,其尺寸由缩放因子定义。 为了产生缩放图像,将缩放的Y,Cb,Cr图像变换为RGB图像进行显示。