| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a radiographic apparatus capable of executing luminance correction suitable for diagnosing without being affected by an extremely bright or dark image projected in a perspective image even when it is projected. <P>SOLUTION: An X-ray imaging apparatus 1 generates an adjustment histogram H1 excluding a part of the histogram H0 of a source image P0, and corrects the luminance of the source image P0 on the basis of it. From the adjustment histogram H1, a component originating from an area unrelated to a subject in the source image P0 is excluded. Such a steep peak does not originate in the subject M. When a pixel value is corrected on the basis of the adjustment histogram H1, a luminance corrected image P1 with excellent visibility is acquired. <P>COPYRIGHT: (C)2012,JPO&INPIT |
