Problem to be solved: to provide an image processing apparatus in which an image processing is not required to be performed a plurality of times in order to estimate the scattered line components even if the image processing is performed multiple times on the radiation image.The image processing apparatus acquires the radiation image obtained by irradiating the subject with radiation and the scattered ray component caused by the scattered radiation generated by scattering of radiation, and performs image processing on the radiation image according to the instruction. When the instruction for image processing is received again, image processing is performed on the basis of the acquired radiation image and the scattered ray component.Diagram【課題】 放射線画像に施す画像処理を複数回行っても、散乱線成分を推定するための画像処理を複数回行わなくてもよい画像処理装置を提供する。【解決手段】 画像処理装置は、被写体に放射線を照射することにより得られる放射線画像と、放射線が散乱して生じた散乱線による散乱線成分とを取得し、指示に応じて放射線画像に画像処理を施す。画像処理を行う指示を再度受け付けた場合には、取得された放射線画像と、散乱線成分とに基づいて画像処理を行う。【選択図】 図３
