-
公开(公告)号:US09313367B2
公开(公告)日:2016-04-12
申请号:US12598033
申请日:2007-04-30
申请人: Gidi Amir , Doron Shaked , Ruth Bergman , Gitit Ruckenstein , Leonid Vygodner , Alexander Spivakovsky , Andrey Iossifov , Yaron Ruckenstein
发明人: Gidi Amir , Doron Shaked , Ruth Bergman , Gitit Ruckenstein , Leonid Vygodner , Alexander Spivakovsky , Andrey Iossifov
CPC分类号: H04N1/41
摘要: A method for compressing a digital image to be printed, the image consisting of pixels. It is determined, for blocks of pixels, whether a block contains a graphical structure that is to be maintained without loss because it is of a type that can be accurately perceived by a human observer. The block is encoded losslessly into a less voluminous format, if such a graphical structure has been found. Otherwise, the block is compressed lossily, if no such graphical structure has been found.
摘要翻译: 一种用于压缩要打印的数字图像的方法,由像素组成的图像。 对于像素块,确定块是否包含将被维持而没有损失的图形结构,因为它是可被人类观察者精确地感知的类型。 如果已经发现这样的图形结构,则该块被无损编码成较少的格式。 否则,如果没有找到这样的图形结构,则块被有损压缩。
-
公开(公告)号:US20100128286A1
公开(公告)日:2010-05-27
申请号:US12598033
申请日:2007-04-30
申请人: Gidi Amir , Doron Shaked , Ruth Bergman , Gitit Ruckenstein , Leonid Vygodner , Alexander Spivakovsky , Andrey Iossifov
发明人: Gidi Amir , Doron Shaked , Ruth Bergman , Gitit Ruckenstein , Leonid Vygodner , Alexander Spivakovsky , Andrey Iossifov
IPC分类号: G06K15/02
CPC分类号: H04N1/41
摘要: A method for compressing a digital image to be printed, the image consisting of pixels. It is determined, for blocks of pixels, whether a block contains a graphical structure that is to be maintained without loss because it is of a type that can be accurately perceived by a human observer. The block is encoded losslessly into a less voluminous format, if such a graphical structure has been found. Otherwise, the block is compressed lossily, if no such graphical structure has been found.
摘要翻译: 一种用于压缩要打印的数字图像的方法,由像素组成的图像。 对于像素块,确定块是否包含将被维持而没有损失的图形结构,因为它是可被人类观察者精确地感知的类型。 如果已经发现这样的图形结构,则该块被无损编码成较少的格式。 否则,如果没有找到这样的图形结构,则块被有损压缩。
-