METAL STRUCTURE PHASE CLASSIFICATION METHOD, METAL STRUCTURE PHASE CLASSIFICATION DEVICE, METAL STRUCTURE PHASE LEARNING METHOD, METAL STRUCTURE PHASE LEARNING DEVICE, MATERIAL PROPERTY PREDICTION METHOD FOR METAL MATERIAL, AND MATERIAL PROPERTY PREDICTION DEVICE FOR METAL MATERIAL

A metallographic structure phase classification method includes a feature value calculation step of calculating one or more feature values for each pixel of an image captured of a metallographic structure of a metallic material, and a phase classification step of classifying the phase of the metallographic structure in the image by inputting each feature value calculated in the feature value calculation step to a learning-completed model subjected to learning using feature values to which one of labels of a plurality of phases of the metallographic structure are allocated as inputs and the labels of the phases as outputs and acquiring the label of the phase of a pixel corresponding to the input feature value.