Dish food material identification method, device and system

The invention discloses a dish food material identification method, device and system, relates to the technical field of information processing, and can provide more professional and accurate recipe recommendation or food material recommendation services for users. On the basis of the scheme, the food materials suitable for cooking dishes in the picture shot by the user can be identified by determining the characteristics of the target food materials in the map according to the cooking mode and the food materials obtained by analyzing the names of the dishes on the basis of the pre-established food material knowledge map database; or based on a pre-established food material knowledge graph database, matching the picture features of the food materials in the user-specified area in the picture with the graph features corresponding to the cooking methods corresponding to the food materials in the graph to determine the cooking mode suitable for the food materials. According to the scheme, not only can the types of the food materials be identified, but also the varieties of the food materials can be identified, so that a more professional and accurate food material/recipe recommendation service is provided, and the trouble that a user does not know what varieties of food materials are selected when buying vegetables and does not know what dishes the food materials are suitable for cooking during cooking is solved.