Classification of seven kinds of dyeing defects is proposed using image pro
cessing and fuzzy neural network approaches. The defects include filling ba
nd in shade, dye and carrier spots, mist, oil stain, tailing, listing, and
uneven dyeing on selvage. The fuzzy neural classification system is constru
cted by a fuzzy expert system with the neural network as a fuzzy inference
engine. The neural network is trained to become the inference engine using
sample data. This fuzzy neural network system possesses merits of both fuzz
y logic and neural networks, and thus is more intelligent in handling patte
rn recognition and classification problems. Region growing is adopted to di
rectly detect different defect regions in an image. In all, seventy samples
, ten samples for each defect, are obtained for training and testing. The r
esults demonstrate that the fuzzy neural network approach can precisely cla
ssify these samples by the features selected.