发明公开
EP1434195A1 IMAGE PROCESSING APPARATUS, IMAGE TRANSMISSION APPARATUS, IMAGE RECEPTION APPARATUS, AND IMAGE PROCESSING METHOD
有权
BILDVERARBEITUNGSVORRICHTUNG，BILDÜBERTRAGUNGSVORRICHTUNG，BILDEMPFANGSVORRICHTUNG UND BILDVERARBEITUNGSVERFAHREN
- 专利标题： IMAGE PROCESSING APPARATUS, IMAGE TRANSMISSION APPARATUS, IMAGE RECEPTION APPARATUS, AND IMAGE PROCESSING METHOD
- 专利标题（中）： BILDVERARBEITUNGSVORRICHTUNG，BILDÜBERTRAGUNGSVORRICHTUNG，BILDEMPFANGSVORRICHTUNG UND BILDVERARBEITUNGSVERFAHREN
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申请号： EP02765487.0申请日： 2002-09-11
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公开(公告)号： EP1434195A1公开(公告)日： 2004-06-30
- 发明人: SASAKI, Daigo, c/o NEC Corporation
- 申请人： NEC Corporation
- 申请人地址： 7-1, Shiba 5-chome Minato-ku, Tokyo 108-8001 JP
- 专利权人： NEC Corporation
- 当前专利权人： NEC Corporation
- 当前专利权人地址： 7-1, Shiba 5-chome Minato-ku, Tokyo 108-8001 JP
- 代理机构： VOSSIUS & PARTNER
- 优先权： JP2001280646 20010914; JP2002206186 20020715
- 国际公布： WO2003025897 20030327
- 主分类号： G09G5/00
- IPC分类号： G09G5/00 ; G09G3/36 ; G06T5/00 ; H04N1/40
摘要：
To provide an image processing apparatus and an image transmission apparatus capable of image display as excellent as a normal raster image even when the memory capacity is reduced in a display having a built-in memory, and an image processing method.
The image processing apparatus of the present invention performs multi-valued dither processing at an image processing former stage 4 when a raster image 1 is input to a memory 2, and the raster image output from the memory 2 is subjected to reverse processing to the multi-valued dither processing in an image processing latter stage 5. With this construction, it is possible to obtain a display apparatus capable of suppressing a grainy feeling and pseudo colors, thereby realizing high quality images.
The image processing apparatus of the present invention performs multi-valued dither processing at an image processing former stage 4 when a raster image 1 is input to a memory 2, and the raster image output from the memory 2 is subjected to reverse processing to the multi-valued dither processing in an image processing latter stage 5. With this construction, it is possible to obtain a display apparatus capable of suppressing a grainy feeling and pseudo colors, thereby realizing high quality images.
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