An integrated circuit includes a data storage circuit, a weight storage circuit, and an operation circuit. The data storage circuit stores, according to a preset control instruction, gray-scale value data of an image in a first preset time period; the weight storage circuit stores a data weight corresponding to the gray-scale value data in the first preset time period; the operation circuit carries out an operation on the gray-scale value data and the data weight in the first preset time period and outputs first data; the data storage circuit further stores the first data according to the preset control instruction in a second preset time period; the weight storage circuit further stores the data weight corresponding to the first data in the second preset time period; the operation circuit carries out an operation on the first data and the data weight in the second time period and outputs second data.