JPS54150933A - Normallizing device - Google Patents

Abstract

PURPOSE: To obtain core character frame of the input character and then to secure an agreement between the size of the core and the core of the standard character by subtracting the average width of the presumed input character from the height and width of the character obtained by projecting the input character onto Y and X axis lines.

CONSTITUTION: The normalization conversion rate is obtained from the input pattern, and the input pattern is normalized to the standardized pattern size according to the conversion rate. In such device, the characters of slip 1 are converted into the electric signals through photoelectric converter 2. These electric signals are then isolated with every character via character detection cut-out control circuit 3 and then stored in detection cut-out storage buffer 4. At the same time, the input character information is supplied to input character projection detector circuit 5 to obtain character height H = Y₁WY₂ along with the character width W = X₁WX₂ each. Furthermore, the characters stored in buffer 4 are applied to average line width detector circuit 6, and average line width of circuit 6 plus the output of circuit 5 are added to normalizing control circuit 7 to obtain normalization conversion rate NV and NH. With these rates, the characters within buffer 4 are normalized to be stored into pattern storage buffer 8.

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