A digital camera is connected to a computer through a serial terminal. The computer is connected to a server through an internet. To the server, the digital camera transmits uncompensated image data to which no defect pixel compensation is applied, and defect pixel information preliminarily read from a nonvolatile memory. The server analyses this image data to compare with the defect pixel information, and then creates new defect pixel information. The new defect pixel information is transmitted to the digital camera, and additionally written to the nonvolatile memory. The digital camera compensates image data obtained by image capturing, based on the defect pixel information.