RADIOGRAPHIC APPARATUS AND RADIATION DETECTION SIGNAL PROCESSING METHOD

摘要

Signal level differences occurring across a boundary extending vertically are also a type of signal level differences stemming from a distribution of signal levels of pixels. It is therefore possible to reduce the signal level differences of the pixels occurring in the horizontal direction of a pixel arrangement by applying an amount of correction obtained from statistics (mean values) relating to the distribution of signal levels of the pixels to the signal level of each pixel to correct each pixel. The correction is carried out only when a particular condition (condition A or B) that an absolute value of a difference between the mean values is at most a predetermined value is satisfied. It is therefore possible to avoid artifacts being generated by the correction carried out for locations where the absolute value of the difference between the statistics should exceed the predetermined value.