Patent ID: 7602981

Claim:
An image storage and display system comprising: an image storage server that includes an image storing unit for storing an image as data; and an image display terminal that is connected to the image storage server via a network and that displays the image sent from the image storage server, wherein the image storage server includes: an information managing unit that manages a history formed operation information concerning an operation that affected a quality of the image in the image display terminal; and an image compressing unit that compresses the image on the basis of the history, and stores a compressed image as the image in the image storing unit, wherein the information managing unit calculates a first period in which there is no free space in the image storing unit on the basis of the stored storage history; and wherein after elapse of the first period or a second period that does not exceed the first period set in advance, the information managing unit sets the image compression ratio on the basis of the history, and stores the compressed image in the image storing unit.