Patent Number: 6,298,150

Title: Image processing device for detecting one-color marks of a number of colors and image processing method thereof

Abstract: To provide an image processing device able to accurately discriminate a specified image in an input image data, the input image is converted to binary based on black and red color extraction blocks 6.sub.-1 and 6.sub.-2 in binary processing unit 1. These binary data are consolidated by an OR circuit and stored in storage device 2. Mark location detection unit 3 extracts a square mark from the image data stored in device 2. Pattern shape extraction unit 4 extracts another mark which is inside the square mark. Pattern matching unit 5 obtains and outputs the goodness of fit between the extracted marks and previously established marks.

Inventors: Sonoda; Shinya (Tsuchido-cho, JP), Akagi; Masahiro (Tsuchido-cho, JP), Ohmae; Kouichi (Tsuchido-cho, JP), Yanagida; Masahito (Tsuchido-cho, JP), Senga; Masahiro (Tsuchido-cho, JP)

Assignee: Omron Corporation

International Classification: G06K 9/46 (20060101); G06K 7/12 (20060101); H04N 1/00 (20060101); G06K 009/00 ()

Expiration Date: 10/02/2018