In view of the problems of low efficiency and high work intensity of artificial casting recognition

and failure of existing character recognition technology

a word-casting recognition system based on machine vision was designed

which made a certain breakthrough in preprocess the light intensity

brightness

contrast

binarization

denoising and other aspects of casting image. Moreover

the preprocessed image can be used for contour recognition and word-casting recognition to obtain word-casting information. Aiming at the castings with complex structure

several methods were proposed

which solved the above problems to a certain extent and could better achieve the life cycle control and traceability of the whole process of casting.