The invention relates to the technical field of image
data processing, in particular to a multiband
hyperspectral image fusion method for predicting
surface moisture of
coal, which comprises the following steps: acquiring visible light and near-
infrared images and calculating reflection difference frequency, constructing a grade layer and then executing region mapping and brightness superposition, extracting pixel features and sorting and dividing threshold regions, and identifying
boundary change and generating a graph block, and finally reconstructing a
moisture distribution graph surface according to a gray scale. According to the method, pixel-level distinguishing is carried out through reflection differences of visible light and near-
infrared images, hierarchical
layers are constructed based on multi-band reflection changes, layer stacking and classification are completed in combination with characteristics such as brightness, edge changes and space
concentration ratio,
moisture region boundaries are delimited, and
moisture level maps are generated according to gray scale sorting. Fine grading and boundary positioning of the moisture content are realized, the prediction precision is improved, the problems of single-band
processing limitation and fusion
information loss are solved, and the identification capability of the moisture area in the complex
coal surface environment is enhanced.