پیش‌بینی نتایج BYK-mac-i در اندازه‌گیری ویژگی دانه‌ای‌شدن در پوشش‌های متالیک با استفاده از اسکنر و روش‌های تحلیل بافتار

نوع مقاله : مقاله پژوهشی

نویسندگان

دانشکده مهندسی پلیمر و رنگ، دانشگاه صنعتی امیرکبیر، تهران، ایران، صندوق‌پستی: 4413-15875

10.30509/jcst.2025.167480.1253

چکیده

پوشش‌های متالیک به دلیل ویژگی‌های دیداری جذاب، در صنایع مختلفی از جمله خودروسازی و دکوراسیون مورد استفاده قرار می‌گیرند. ارزیابی دانه‌ای‌شدن بافتار این پوشش‌ها نقش مهمی در کنترل کیفیت آن‌ها دارد. در این پژوهش، روش‌های مختلف پردازش تصویر شامل تبدیل فوریه، تبدیل موجک، ماتریس هم‌وقوعی و بسامد لبه وابسته به فاصله، برای کمی‌سازی دانه‌ای‌شدن بافت پوشش‌های متالیک بررسی شدند. داده‌های به‌دست‌آمده از تحلیل بافتار، با نتایج گونیواسپکتروفوتومتر BYK-mac-i مقایسه شدند و میزان همبستگی آن‌ها محاسبه شد. نتایج نشان داد که تمامی روش‌ها ارتباط معناداری با نتایج دستگاهی دارند. از میان این روش‌ها، ویژگی همگنی به دست آمده از ماتریس هم‌وقوعی، بالاترین دقت را در کمی­سازی دانه‌ای شدن بافتار نشان داد و با ضریب همبستگی 0.88، تطابق بالایی با نتایج حاصل از گونیواسپکتروفوتومتر BYK-mac-i داشت. همچنین، ویژگی‌های میانگین دامنه طیف فوریه و انرژی موجک در کانال قطری در حوزه بسامد، به همراه ویژگی‌های انرژی و همبستگی ماتریس هم‌وقوعی و روش بسامد لبه وابسته در حوزه مکان، با ضرایب همبستگی بالاتر از 0.82 نتایج قابل قبولی ارائه دادند.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Prediction of BYK-mac-i Results for Assessing Graininess Characteristics in Metallic Coatings Using Scanner and Texture Analysis Methods

نویسندگان [English]

  • Fatemeh Malekpour
  • Saeideh Gorji Kandi
  • Mohsen Mohseni
Department of Polymer and Color Engineering, Amirkabir University of Technology, P.O. Box: 15875-4413, Tehran, Iran.
چکیده [English]

Metallic coatings are widely used in various manufacturing industries, including automotive and decoration, due to their visually appealing characteristics. Evaluating the texture graininess of these coatings plays a crucial role in quality control. This study investigated various image processing methods, including Fourier transform, wavelet transform, co-occurrence matrix, and distance-dependent edge frequency, to quantify the graininess attribute of metallic coatings. The texture analysis obtained data were compared with the BYK-mac-i gonio-spectrophotometer graininess, and the correlation between them was calculated. The results showed that all methods correlated significantly with the measured graininess data. Among these methods, the homogeneity derived from the co-occurrence matrix demonstrated the highest accuracy in quantifying texture graininess, with a correlation coefficient of 0.88. This result aligns closely with the findings obtained from the BYK-mac-i gonio-spectrophotometer. Additionally, the Fourier spectrum means and wavelet energy in the diagonal channel in the frequency domain and the energy and correlation features from the co-occurrence matrix and distance-dependent edge frequency method in the spatial domain provided acceptable results with correlation coefficients above 0.82.

کلیدواژه‌ها [English]

  • Metallic coatings Graininess Texture analysis BYK
  • mac
  • i gonio
  • spectrophotometer

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