Patent Number: 6,293,466

Title: Bar code image processing apparatus

Abstract: An image input section enters a document image including a bar code, and converts the document image into a binary image. A small pattern removing section removes small patterns from a binary image sent from the input section. A labeling section separates the binary image into labeled regions and calculates the feature quantity including a center position of each labeled region. A region detecting section makes a group of labeled regions spaced at a predetermined positional relationship based on their feature quantities and detects a bar code candidate region. A decoding section decodes the bar code based on the feature quantity involved in the bar code candidate region.

Inventors: Fujita; Mikio (Yokohama, JP), Yamamoto; Atsuharu (Kawasaki, JP), Kawahara; Toyoki (Kawasaki, JP), Yoshida; Kunio (Kawasaki, JP), Asano; Toru (Sagamihara, JP), Komizo; Shigeo (Tokyo, JP)

Assignee: Matsushita Electric Industrial Co., Ltd.

International Classification: G06K 7/14 (20060101); G06K 007/10 ()

Expiration Date: 09/25/2018