METHOD AND APPARATUS FOR AUTOMATIC TEXT SEPARATION USING AUTOMATIC ELECTRONIC FILTERING OF MULTIPLE DROP-OUT COLORS FOR OPTICAL CHARACTER RECOGNITION OF PREPRINTED FORMS

摘要

The method and apparatus described, used to separate a text contained in a previously printed paper, are based on the assumption that the text used to fill mechanographic printed text can be classified as "written in a base color carbon ", the text is then considered written in black regardless of the color filters used. then the text can be separated from all the color information pre-printed using an "all colors" filter.