A digital camera system includes: a digital camera 1 that wirelessly transmits raw data from an image capturing unit 11 and information of the image capturing unit 11; and a server center 2 that receives them via Internet and executes interpolation, white balance adjustment, edge emphasis, subsampling and compression with them. The digital camera 1 generates thumbnail images or small size reproduction images by subsampling the identical raw data and stores them in relation to the raw data which have been transmitted. The digital camera 1 is constituted as a portable telephone integrated digital camera, and the transmission of image and the storage and the display of post-subsampling data are achieved by utilizing the standard functions of the portable telephone.