A radiographic-image processing apparatus that can accurately remove striated artifacts superimposed onto image data taken by an FPD radiographic imaging device includes: a partitioning section that partitions a region, in which image data taken by a radiographic imaging device is arranged two-dimensionally, into segments； a mean-value computation section that computes mean values from the image data along the same scanning line in each segment； an edge compression section that compresses mean-value differentials in boundary regions between the imaged subject and the surroundings thereof； a filtering section that applies an adaptive filter to the differential-compressed profile； and a correction-data creation section that creates correction data on the basis of each datum in the adaptive-filtered profile. Image data in which noise is removed is generated by subtracting corresponding correction data from the image data.
