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This paper presents a surface image acquisition system based on digital image processing technology. The image acquired by CCD is pre-processed through the procedure of image editing, image equalization, the image binary conversation and feature parameters extraction to achieve casting surface roughness measurement. The three-dimensional evaluation method is taken to obtain the evaluation parameters and the casting surface roughness based on feature parameters extraction. An automatic detection interface of casting surface roughness based on MATLAB is compiled which can provide a solid foundation for the online and fast detection of casting surface roughness based on image processing technology.
Date of Conference: 24-26 Aug. 2012