An image display device, a learning device, an imaging system, and an image display method capable of performing optimal machine learning using image data accumulated in a database or the like and providing information useful for photographing using the learning result. , And provide learning methods. A request representing image evaluation information intended by a user is received from an external device (S31, S33), an image for which image evaluation information corresponding to the request is obtained is extracted from an image database, and the extracted image is extracted. Then, deep learning is performed to create an inference model (S35 to S39), and the created inference model is transmitted to an external device (S43). [Selection diagram]
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