PROBLEM TO BE SOLVED: To provide an information processing device and a radiographic system capable of compensating for sensitivity deterioration with time during waiting photographing, in capturing a radiographic image.SOLUTION: The information processing device acquires a photographing waiting time between the start of the photographing waiting by the radiographic device and photographing a radiographic image by the photographic device, acquires time characteristic data indicating the sensitivity variation of the radiographic device corresponding to the photographing waiting time between the start of the photographing waiting by the radiographic device and photographing by the radiographic device, estimates the amount of sensitivity deterioration of photographing by using the acquired photographing waiting time and time characteristic data, and determines a correction amount for compensating the sensitivity deterioration.
