Automatic Black & White/Grayscale Selection Technology for Document Scanning

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  • IMAIZUMI Daisaku
    Advanced Technology Development Unit, Business Solution Business Unit, SHARP Corporation
  • TAKASHIMA Masahiko
    Advanced Technology Development Unit, Business Solution Business Unit, SHARP Corporation
  • MATSUOKA Teruhiko
    Advanced Technology Development Unit, Business Solution Business Unit, SHARP Corporation

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  • 文書スキャン向け白黒2値グレースケール自動判定技術
  • ブンショ スキャン ムケ シロクロ 2チ グレースケール ジドウ ハンテイ ギジュツ

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Abstract

<p>In recent years, in offices, there is an increasing need to manage and operate not paper documents but electronic documents in order to use and cooperate with the cloud and RPA (Robotic Process Automation), and a large number of paper documents can be computerized easily and optimally, the importance of capable functions is increasing. On the other hand, in digitization of paper documents, it is difficult to optimize the image quality and the size. If the image quality is prioritized and scanned in gray scale, the file size becomes large. In addition, if you give priority to size, and do not use grayscale but scan with black and white, the distinction between text and background will be unclear, so there is also a problem that the character can not be visually recognized. Therefore, we have developed a new technology that automatically determines an appropriate halftoning for each document from either black and white or gray scale. In this paper, we report on the outline of this technology.</p>

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