Apparatus for objectively grading centering condition of a stamp

Details Apparatus for objectively grading centering condition of a stamp Apparatus for objectively grading centering condition of a stamp

1989-09-18

1991-05-21

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

382 46, 382 48, G06K 932

Patent

active

050182072

ABSTRACT:
A philatelic stamp grading invention includes image digitizing hardware for creating a two-dimensional array of data bytes corresponding to the digitized image of the stamp. A computer executes a program which analyzes the stamp image data and determines the minimum border width of each side of the stamp between the edges of the stamp and the design or vignette of the stamp. A centering index is calculated from the minimum border values determined for each edge of the stamp. A printer is also shown providing means for printing the centering index, as well as printing out a hard copy of the computer analyzed stamp image.

REFERENCES:
patent: 3412993 (1968-11-01), Giori
patent: 4367045 (1983-01-01), Grosvernier
patent: 4680806 (1987-07-01), Bolza-Schunemann
patent: 4698511 (1987-10-01), Sueda et al.
patent: 4730927 (1988-03-01), Ototake et al.
patent: 4744663 (1988-05-01), Hamashima et al.
patent: 4744664 (1988-05-01), Offt et al.
patent: 4953230 (1990-08-01), Kurose
patent: 4955062 (1990-09-01), Terui

Affiliated with

Also associated with

Rating

Apparatus for objectively grading centering condition of a stamp does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for objectively grading centering condition of a stamp, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for objectively grading centering condition of a stamp will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-244964