Patent ID: 8369623
Filing Date: 2013-02-05
Classification: G06K

Abstract:
1. An image forming apparatus comprising: a scan unit to scan a document received by the image forming apparatus; a text/image separation unit to separate the scanned document into a text area and an image area and to separate texts in the text area into symbols; an index determination unit to extract one or more properties of the separated symbols and to compare the extracted symbol properties with one or more index thresholds that are set as an average value of preset symbol properties calculated based on a variation of the preset symbol properties to determine whether text including the symbols is an index object when the extracted one or more properties are greater than the one or more index thresholds, and to determine the symbols as index-object symbols, group the index-object symbols, and determine the texts comprising the groups of the index-object symbols as objects in the index when the extracted symbol properties are greater than the index thresholds; and an index page creation unit to create an index page including the text determined as the index object and information about a page including the text, wherein the index thresholds are a reference value to determine an index-object symbol, the index thresholds comprising one or more of a symbol width threshold, a symbol height threshold, and a stroke width threshold, or the index thresholds are set by a user.