杢目縫い絞りの柄の評価

抄録

In consequence of our previous study revealed the appearance mechanism of a Mokumenui-shibori pattern. Also a simulation program which generates an image of shibori pattern by stitch lengths was developed. The purpose of this study is to establish an objective evaluation of a Mokumenui-shibori pattern. First, in regard to feature extractions of textures, we evaluated two types of Mokumenui-shibori patterns which were created by the simulation program using two types of artificial stitch lengths. One type of artificial stitch lengths had a different standard deviation on stitch lengths, and other type had a peak value in a distribution of stitch lengths. To evaluate two types of patterns, there were three kinds of approaches for feature extractions of textures. One was simply to count the number of a pattern separated and a pattern interrupted in each. Others were to calculate a standard deviation of marginal distribution and a two dimensional power spectrum. Additionally, we calculated a fractal dimensions for evaluation. Then we evaluated some real pattern of Mokumenui-shibori which was simulated by actual stitch lengths. As a result of this study, in comparison with amateurs, there was indicated that patterns by professionals were fine and complicated with directivity kept.