Methods to extract crystallinity characteristic information of magmatic rock section in Miyun,Beijing
Based on the MATLAB simulation platform,the effective characteristics of the magma rock section crystallinity in the study area are studied.Histogram equalization was applied for image enhancement preprocessing.Geometric feature algorithms were used to extract horizontal perimeter,vertical perimeter,and area data to calculate the relative value parameters of granular-ity.The frequency domain algorithm was used to segment the spectral image into circular regions,and the high-frequency data were analyzed and integrated to obtain the high-frequency region parameters.By combining two algorithms and comprehensively extracting 8-dimensional image feature vectors,the crystallization degree and particle size of magmatic rocks are accurately char-acterized.
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