ORIENTATION DETERMINATION APPARATUS, ORIENTATION DETERMINATION METHOD, AND COMPUTER-READABLE RECORD MEDIUM

ORIENTATION DETERMINATION APPARATUS, ORIENTATION DETERMINATION METHOD, AND COMPUTER-READABLE RECORD MEDIUM

PROBLEM TO BE SOLVED: To provide an apparatus capable of precisely determining the orientation of a document even if environmental conditions vary.SOLUTION: An orientation determination apparatus (700) comprises: an adding unit (714) which respectively calculates the added value of absolute values o...

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Bibliographische Detailangaben
1. Verfasser: FERMAN AHMET MUFIT
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide an apparatus capable of precisely determining the orientation of a document even if environmental conditions vary.SOLUTION: An orientation determination apparatus (700) comprises: an adding unit (714) which respectively calculates the added value of absolute values of horizontal differences between adjacent pixels and the added value of absolute values of vertical differences between adjacent pixels, with respect to the aggregate image of a text generated from a text mask of a document image; and an orientation determination unit (718) which compares the horizontally added value and the vertically added value and determines the orientation of text lines.