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

IPC分类号： G06K15/02 ,  H04N1/41

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。