| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a painted face evaluation method capable of determining automatically a defective painted face (whitening fading) such as uneven glossy feeling caused by a micro flaw group generated by polishing or the like, with a high correlation with a sensuous evaluation. <P>SOLUTION: An inspected painted face is imaged to calculate the first standard deviation σ1, based on a brightness histogram of a post-treated inspected painted face image provided by pretreating an obtained inspected painted face image. The second standard deviation σ2 is also calculated based on a brightness histogram of an image obtained by Laplacian-filtering-processing the post-treated inspected painted face image, and quality of the inspected painted face is determined based on the both standard deviations σ1, σ2. The σ1 represents so-called unevenness feeling of the painted face, and the σ2 represents a level of the existing micro flaws, and the whitening fading caused by the micro flaw group is objectively and automatically determined, by the painted face quality determination using the σ1, σ2 as main components. <P>COPYRIGHT: (C)2008,JPO&INPIT |
