PICTURE NORMALIZING METHOD

PURPOSE:To extract the stable feature value by obtaining the density value for each of vertical and horizontal components based on a size ratio between a subject pattern and a standard pattern. CONSTITUTION:When the vertical and horizontal component values of a pattern are normalized, the density of...

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Bibliographic Details
Main Authors YOSHIDA KAZUSHI, KIUCHI TETSUO
Format Patent
LanguageEnglish
Published 19.10.1988
Subjects
CALCULATING
COMPUTING
COUNTING
HANDLING RECORD CARRIERS
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
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Summary:PURPOSE:To extract the stable feature value by obtaining the density value for each of vertical and horizontal components based on a size ratio between a subject pattern and a standard pattern. CONSTITUTION:When the vertical and horizontal component values of a pattern are normalized, the density of each component is corrected in response to the vertical and horizontal reduction rates. IN other words, the vertical component is multiplied by a (y) directional reduction rate y/Y, e.g., 8/24=1/3 is satisfied. In the same way, the vertical component is multiplied by an (x) directional reduction rate x/X. Thus two normalized pictures having the maximum density value '6' are obtained. In such a way, the stable feature value is obtained with no difference of density caused between the vertical and horizontal components even with deformed characters.
Bibliography:Application Number: JP19870084646