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首页> 外文期刊>International Journal of Electrochemical Science >Evaluation of Simulated Atmospheric Corrosion of Q235 Steel by Wavelet Packet Image Analysis
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Evaluation of Simulated Atmospheric Corrosion of Q235 Steel by Wavelet Packet Image Analysis

机译：基于小波包图像分析的Q235钢模拟大气腐蚀评估。

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摘要

The corrosion morphology of Q235 steel in simulated atmospheric environment was obtained using theestablished image acquisition system which can be used in the field. In order to obtain the detailedinformation of the images, wavelet packet decomposition揵ased image analysis method was applied todecompose the improved images and energies of sub-images (according to the Shannon entropystandard to choose the optimal sub-images with high regularity) were extracted as characteristicinformation. The results showed that it is the change of the energies of sub-images that can make aqualitative analysis of the corrosion degree of Q235 steel specimens. The relationship between thefeature value and corrosion weight loss of samples was evaluated by regression analysis. By using theequation given by the regression analysis, the corrosion degree of Q235 steel specimens can bequantitatively analyzed. The proposed method can be used to predict the atmospheric corrosion ofsteel.
机译：利用已建立的可在现场使用的图像采集系统，获得了Q235钢在模拟大气环境下的腐蚀形态。为了获取图像的详细信息，采用小波包分解-ased图像分析方法对改进后的图像和能量进行分解（根据香农熵标准，选择具有较高规律性的最优子图像）作为子图像。特征信息。结果表明，Q235钢试件腐蚀程度的定性分析是子图像能量的变化。通过回归分析评估了特征值与腐蚀失重之间的关系。利用回归分析给出的方程，可以定量分析Q235钢试件的腐蚀程度。该方法可用于预测钢的大气腐蚀。

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