| 摘要 |
PURPOSE:To simplify the arithmetic processing for a density correction and to shorten image processing time in a radiograph processing method. CONSTITUTION:A CPU 50 prepares the histogram of the radiation image signal Sorg inputted in a frame memory 51 and performs the pattern matching with the prescribed histogram stored in the memory 51. An Sk/Gp conversion table performing an Sk/Gp conversion so that the image signal Smin to Smax of the desired image information range obtained by it may be a prescribed density range is written in an Sk/Gp conversion table RAM 53. In the Sk/Gp conversion table RAM 53, the Sk/Gp conversion is performed for the image signal (Srog+DELTAS) where an addition processing is performed for an image signal corrected value DELTAS for the image signal Sorg, and an image processing is performed. |
