PROBLEM TO BE SOLVED: To eliminate a scattered radiation component from a radiation image with a high degree of precision in consideration of an air gap between a subject and a radiation detector in a radiation image processing device, method, and program.SOLUTION: In executing processing to eliminate a scattered radiation contained in a radiation transmitting through a subject M for a radiation image captured by irradiating a radiation onto the subject M, a photographing condition acquisition part 22 acquires a photographing condition, and a distance information acquisition part 24 acquires distance information indicating a distance between the subject M and a radiation detector 5. A scattered radiation information acquisition part 25 acquires scattered radiation component information indicating a scattered radiation component of a radiation contained in the radiation image based on at least the photographing condition, and a correction part 26 corrects the scattered radiation component information based on the distance information. A scattered radiation elimination part 27 executes scattered radiation elimination processing for the radiation image based on the corrected scattered radiation component information.SELECTED DRAWING: Figure 1【課題】放射線画像処理装置、方法およびプログラムにおいて、被写体と放射線検出器との間のエアギャップを考慮して、放射線画像から精度よく散乱線成分を除去できるようにする。【解決手段】被写体Ｍに放射線を照射することにより撮影された放射線画像に対して、被写体Ｍを透過した放射線に含まれる散乱線を除去する処理を行うに際し、撮影条件取得部２２が撮影条件を取得し、距離情報取得部２４が被写体Ｍと放射線検出器５との距離を表す距離情報を取得する。散乱線情報取得部２５が、少なくとも撮影条件に基づいて放射線画像に含まれる放射線の散乱線成分を表す散乱線成分情報を取得し、補正部２６が、距離情報に基づいて散乱線成分情報を補正する。散乱線除去部２７が、補正された散乱線成分情報に基づいて放射線画像の散乱線除去処理を行う。【選択図】図１
