Image analysis – Color image processing
Reexamination Certificate
2008-05-27
2008-05-27
Dang, Duy M (Department: 2624)
Image analysis
Color image processing
C392S488000
Reexamination Certificate
active
07379585
ABSTRACT:
The trapping process described below reliably creates trapping images where needed even when there are small gaps between two adjacent image objects that are parts in the printed output. When a focus object and a related object that is below and adjoins the focus object touch at two points A, B so that a gap region Rg is formed between the focus object and related object, the adjoining vectors identifying where a trapping image must be created are extracted as follows. First, the vector of intersection that is equivalent to the path from point A to point B along the part of the contour of the focus object touching the gap region is determined. Next, the distance L from the midpoint C of this vector of intersection to the related object is calculated, and whether this distance L is less than or equal to specified value e (representing a gap equivalent to one or two pixels) is determined. If distance L is less than or equal to specified value e, that vector of intersection is saved as an adjoining vector.
REFERENCES:
patent: 6141462 (2000-10-01), Yoshino et al.
patent: 6515763 (2003-02-01), Dermer et al.
patent: 6577777 (2003-06-01), Yoshino et al.
patent: 6795214 (2004-09-01), Weinholz et al.
patent: 09-106460 (1997-04-01), None
Dainippon Screen Mfg. Co,. Ltd.
Dang Duy M
McDermott Will & Emery LLP
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