INFORMATION PROCESSING APPARATUS, METHOD FOR CONTROLLING THE SAME, AND PROGRAM

PROBLEM TO BE SOLVED: To appropriately remove a fine contrast after difference data between image data is extracted.SOLUTION: An information processing apparatus recognizing characters included in difference data between a data portion of data before entry and a data portion of data after entry, rea...

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Hauptverfasser: OTA KENTO, YAO TADAHITO
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To appropriately remove a fine contrast after difference data between image data is extracted.SOLUTION: An information processing apparatus recognizing characters included in difference data between a data portion of data before entry and a data portion of data after entry, reads the respective data portions of the data before entry and data after entry, deforms the data portion read from the data after entry so that the data portion read from the data after entry overlaps with the data portion read from the data before entry, binarizes the deformed data portion of the data after entry into a gradation indicating a portion with data and a gradation indicating a portion without data, and extracts difference data between the data portion of the binarized data after entry and the data portion of the data before entry in which the data portion of the data before entry is binarized into a gradation indicating a portion with data and a gradation indicating a portion without data.SELECTED DRAWING: Figure 4 【課題】画像データ間の差分データを抽出した後の微小コントラストを適切に除去すること。【解決手段】記入前データのデータ箇所及び記入後データのデータ箇所との差分データに含まれる文字を認識する情報処理装置が、記入前データ及び記入後データにおけるデータ箇所をそれぞれ読み取り、記入後データから読み取ったデータ箇所が、記入前データから読み取ったデータ箇所に重なるように、記入後データから読み取ったデータ箇所を変形し、変形した記入後データのデータ箇所をデータがある箇所を示す階調とデータが無い箇所を示す階調に二値化し、二値化した記入後データのデータ箇所と、記入前データのデータ箇所をデータがある箇所を示す階調とデータが無い箇所を示す階調に二値化した、記入前データのデータ箇所との差分データを抽出する。【選択図】図4