Image data background determining apparatus image data...

Details Image data background determining apparatus image data... Image data background determining apparatus image data...

2006-08-29

2006-08-29

Lee, Thomas D (Department: 2624)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C382S171000

Reexamination Certificate

active

07099041

ABSTRACT:
Background removal processing applies image processing indiscriminately to the whole image on the basis of an assumed presence of a background. Therefore, if the input image has a background and the luminance tone level of this background is relatively low, the background area cannot be removed.It is made possible to scan a document with a color scanner40and determine a blank paper area constituting the background of the document image, i.e. a substantially white area, according to a prescribed frequency distribution of image data constituting the image. It is further made possible to provide clear contrast between the background of the image reproduced from image data and the non-background part of the image and to remove noise components appearing on the background, such as what is written or drawn on the wrong side of paper seen through, because, once the presence of a background is determined, the substantially white background area is retouched to white, i.e. the highest tone, by image data retouching according to a correction curve.

REFERENCES:
patent: 5140416 (1992-08-01), Tinkler
patent: 5657395 (1997-08-01), Hirota
patent: 5699454 (1997-12-01), Nakai et al.
patent: 5706368 (1998-01-01), Mita
patent: 5850298 (1998-12-01), Narahara et al.
patent: 6222949 (2001-04-01), Nakata
patent: 0 845 716 (1998-06-01), None
patent: 55056761 (1980-04-01), None
patent: 01-196975 (1989-08-01), None
patent: 01196971 (1989-08-01), None
patent: 02000884 (1990-01-01), None
patent: 02294163 (1990-12-01), None
patent: 03044268 (1991-02-01), None
patent: 04037258 (1992-02-01), None
patent: 04037259 (1992-02-01), None
patent: 043131744 (1992-11-01), None
patent: 07303188 (1995-11-01), None
patent: 08307722 (1996-11-01), None
patent: 09-266539 (1997-10-01), None
patent: 10164368 (1998-06-01), None

Affiliated with

Also associated with

Rating

Image data background determining apparatus image data... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Image data background determining apparatus image data..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image data background determining apparatus image data... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3690156