Method and apparatus for detecting whether an electronic image h

Details Method and apparatus for detecting whether an electronic image h Method and apparatus for detecting whether an electronic image h

1994-12-01

1998-05-12

Couso, Yon

Image analysis

Pattern recognition

Classification

382194, 358400, G06K 946, G06K 966, G06K 762, H04N 100

Patent

active

057518556

ABSTRACT:
A method of recognizing the effects of coarse pixel quantization on text represented via raster signals to enable automatic selection between fax and normal modes of optical character recognition. A processor executes instructions stored in a memory to trace the contours of connected components included within a sample image and to count the number of runs one, two, and three pixels in length along the contour. If the sample image includes few runs two pixels in lengths along the contours of its connected components as compared to the number of runs one and three pixels in length, then the sample image has undergone coarse pixel quantization and the processor selects fax mode optical character recognition.

REFERENCES:
patent: 4280144 (1981-07-01), Bacon
patent: 4680804 (1987-07-01), Kuzunuki et al.
patent: 4746978 (1988-05-01), Shimura
patent: 5029227 (1991-07-01), Kawamura
patent: 5212741 (1993-05-01), Barski et al.
patent: 5218649 (1993-06-01), Kundu et al.
patent: 5270836 (1993-12-01), Kang
patent: 5287202 (1994-02-01), Kumarappan
patent: 5412742 (1995-05-01), Takasaki et al.
patent: 5440408 (1995-08-01), Tomita
patent: 5553162 (1996-09-01), Gaborski et al.
patent: 5559530 (1996-09-01), Yamashita et al.
European Search Report Dec. 19, 1996 for couinterpart European EPC application 95308693.1.

Affiliated with

Also associated with

Rating

Method and apparatus for detecting whether an electronic image h does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for detecting whether an electronic image h, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for detecting whether an electronic image h will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-991611