IMAGE READER

PROBLEM TO BE SOLVED: To provide an image reader capable of accurately detecting a crop area and performing crop processing regardless of the luminance difference between an original color of a paper and a background color in a document.SOLUTION: A scanner 1, which is an image reader, includes an im...

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Bibliographische Detailangaben
Hauptverfasser:	SAWADA TAKETOSHI, MATSUDA YUKI, IWAYAMA AKIRA
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY IMAGE DATA PROCESSING OR GENERATION, IN GENERAL PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an image reader capable of accurately detecting a crop area and performing crop processing regardless of the luminance difference between an original color of a paper and a background color in a document.SOLUTION: A scanner 1, which is an image reader, includes an image reading unit 10 that reads an image of a document 100, two light-emitting units 26 that are provided opposite to each side of the document 100 respectively, a reading control unit 72 that controls the image reading unit 10 and obtains a transmission light image and a reflection light image created by lights irradiated from the respective light-emitting units 26, and a crop processing unit 82 that performs crop processing of the reflection light image in a crop area detected by the transmission light image.