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The decomposition and analysis of wrinkle profiles (signals) utilizing the wavelet transforms are presented. The Continuous Wavelet Transform (CWT) is used to analyze their wavelet coefficients C, which indicates the similarity closely correlated with the wavelet, and their wavelet power spectra. The signal can be decomposed into an approximation a$ and details do with the Discrete Wavelet Transform (DWT), and 3-D images of the fabric wrinkles decomposed is obtained, proving a convenient format for the analysis of wrinkles and identifying the characterization of wrinkles. The analysis of wrinkle properties of AATCC replicas and fabrics are performed with this method.

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The slit beam projecting technique combined with the image processing is used, and three-dimensional image of the wrinkle of fabrics is obtained by the method, in which there is no influence on the results from the colors and the patterns of fabrics, and the fabric wrinkles can be evaluated and analyzed objectively.The parameters, such as standard deviation of height values of surface profiles, increasing ratio of surface area, one of surface length, and fractal dimension of surface, are defined and suggested to evaluate and characterize the fabric wrinkles. There are logarithm relationships between the parameters and the wrinkle grades of standard replicas, and their correlations are high, too. There is a good agreement between the subjective appraisal and the objective evaluation results for the fabrics.

The slit beam projecting technique combined with the image processing is used, and three-dimensional image of the wrinkle of fabrics is obtained by the method, in which there is no influence on the results from the colors and the patterns of fabrics, and the fabric wrinkles can be evaluated and analyzed objectively. The parameters, such as standard deviation of height values of surface profiles, increasing ratio of surface area, one of surface length, and fractal dimension of surface, are defined and suggested to evaluate and characterize the fabric wrinkles. There are logarithm relationships between the parameters and the wrinkle grades of standard replicas, and their correlations are high, too. There is a good agreement between the subjective appraisal and the objective evaluation results for the fabrics.