Method and system for correcting extension rate of images.

摘要

Positions of marker images included in two images obtained by a digital radiography system are detected by a marker position detecting section (10). The marker image intervals in each image are calculated by an extension rate correcting section (11) in accordance with the detected positions of the marker images. Reducing/extension for one image is performed in accordance with the extension rate of the image obtained by a ratio of the calculated marker image intervals, thereby coinciding extension rates of two images.