To facilitate comparison of a plurality of waveforms when a plurality of waveforms acquired by analyzing an X-ray dynamic image are displayed simultaneously.SOLUTION: In the analysis of an X-ray dynamic image, a plurality of pieces of waveform data are extracted from X-ray dynamic image data including a content of the X-ray dynamic image. A plurality of waveforms representing the plurality of pieces of waveform data respectively are displayed simultaneously in a state in which a plurality of parameters that stipulate at least one of the position and the shape of the plurality of waveforms respectively are normalized.SELECTED DRAWING: Figure 5
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