A study of image processing and data analysis of SEM micrographs of T300,GCF-1 and GCF-2 car鄄
bon fiber samples was described in this paper. A Matlab program compiled in this study was employed to study the sec鄄
tion patterns of carbon fibers. The diameter, roundness,quantity and scale of grooves on carbon fiber surface can be
obtained by image processing and data analysis method established in this research. A Weibull distribution of the
grooves on the surface of all three kinds of CF samples was discovered. The evolution of the surface properties during
heat treatment up to 2 500益showed the similarity of the CF爷s structure. The roundness of T300 carbon fiber is less
than GCF-1 and GCF-2. By using this method,the physical properties of carbon fiber爷s surface can be quantitatively
characterized.