CAD Drawing Comparison Algorithm Based on Image Processing
A CAD drawing comparison algorithm based on image processing is proposed,the main steps of the algo-rithm are to convert CAD drawings into PDF files,perform edge cutting and pixel-level alignment,and use the Gauss Distri-bution to suppress noise,the difference of pixel value was calculated,and the error or missed detection was eliminated by corrosion and expansion.Finally,the differences were marked on the original CAD drawings,and several different labels were combined.The experimental results show that the algorithm is effective and feasible,and plays an important role in the design.
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