Method for locating and circumscribing text areas on a master wh

Details Method for locating and circumscribing text areas on a master wh Method for locating and circumscribing text areas on a master wh

1982-02-12

1985-04-23

Martin, John C.

Image analysis

Histogram processing

For setting a threshold

382 9, 382 48, G06K 960, G06K 934

Patent

active

045134421

ABSTRACT:
A method for locating and circumscribing text areas on a master which may contain text, graphics and/or image areas employs the steps of optoelectronically scanning the master, digitizing the analog signals obtained from the scanning, processing the digital values for forming a plurality of isolated black blocks, and statistically analyzing the coordinates corresponding to the beginning and the end of the black blocks in order to obtain a statistical decision as to whether a particular black block being analyzed represents a line of text.

REFERENCES:
patent: 3496543 (1970-02-01), Greenly
patent: 3805237 (1974-04-01), Cobb et al.
patent: 4411015 (1983-10-01), Scherl et al.

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