| 摘要 |
PROBLEM TO BE SOLVED: To draw the image of even a kidney with low function with good reproducibility between operators. SOLUTION: A pixel near the center of each kidney on an image is clicked. Maximum pixel value included in the first region of a plurality of pixels when the center is the clicked pixel is obtained and made the maximum pixel value. A group of pixels having pixel values over the first threshold value determined with reference to the maximum pixel value in the second region of a plurality of pixels larger than the first region of a plurality of pixels when the center is the clicked pixel is regarded as the kidney center region. When there is a location where two regions in the kidney center region are continuous with only one pixel, the pixel is deleted, the pixel group consisting only of pixels having continuity with the clicked pixel inside the pixels in the kidney center region is newly made the kidney center region and the pixel having higher pixel value than the second threshold value determined with reference to the maximum value in the pixel which wholly or partly comes in the edge region with a width of 5 to 20 mm outside the kidney center region is added to the kidney center region to be a kidney concerning region. |
