| 摘要 |
<P>PROBLEM TO BE SOLVED: To accurately detect a flaw part caused by a discoloration on the surface of wood exerting effect on the quality of the wood by utilizing a color distribution. <P>SOLUTION: The color photographing of the wood 9 is performed by a photographing means 8, the color distribution of the color image photographed by the photographing means 8 is calculated by an image processing means 1, and the calculated color distribution is compared with the color distribution of normal wood. A color distribution wherein the calculated color distribution is separated from the color distribution of the normal wood by a predetermined value or above is set as an abnormal color distribution and a part where the abnormal color distribution is large than the predetermined value in the region on the wood photographed by the photographing means is detected as a flaw of wood. <P>COPYRIGHT: (C)2007,JPO&INPIT |
