| 摘要 |
<P>PROBLEM TO BE SOLVED: To perform improvement of decoding efficiency of a bar code and reduction of a decoding processing time even if size of a bar code candidate area changes. <P>SOLUTION: An area including the bar code 9 attached to a commodity 10 is imaged in multi-gradation by an imaging part 5, the bar code candidate area Ea or the like corresponding to the bar code 9 is extracted from binary image data acquired by binarizing image data acquired by the imaging, each decoding line L11-L16 is set in a line interval Sa or the like according to the size of the bar code candidate area Ea or the like when decoding the bar code 9 included inside the bar code candidate area Ea or the like, and the bar code 9 is decoded from the decoding lines L11-L16. <P>COPYRIGHT: (C)2009,JPO&INPIT |
