Radiographic image processing device, radiographic image processing method, and radiographic image processing program

A radiographic image processing method comprising:

• acquiring a first radiographic image and a second radiographic image that include the same subject and have different S/N ratios;
• deriving a processing content of a first graininess suppression process on the first radiographic image having a higher S/N ratio of the first radiographic image and the second radiographic image;
• deriving a processing content of a second graininess suppression process on the second radiographic image on the basis of the processing content of the first graininess suppression process;
• and
• performing a graininess suppression process on the second radiographic image on the basis of the processing content of the second graininess suppression process.

A non-transitory computer-readable storage medium that stores a radiographic image processing program that causes a computer to execute:

• a procedure of acquiring a first radiographic image and a second radiographic image that include the same subject and have different S/N ratios;
• a procedure of deriving a processing content of a first graininess suppression process on the first radiographic image having a higher S/N ratio of the first radiographic image and the second radiographic image;
• a procedure of deriving a processing content of a second graininess suppression process on the second radiographic image on the basis of the processing content of the first graininess suppression process;
• and
• a procedure of performing a graininess suppression process on the second radiographic image on the basis of the processing content of the second graininess suppression process.