| 摘要 |
PROBLEM TO BE SOLVED: To provide a device to automatically set a tone for medical-use images in which image tone setting can be achieved accurately for medical-use images subjected to practical diagnoses without causing unnecessary time and labor in changing image species. SOLUTION: This device to automatically set tone for medical-use images has a CPU 4 to extract picture elements related to concerned positions (concerned picture elements) from groups of original picture elements stored in a multi-value image memory 5, and stores items of information about the concerned picture elements in a concerned picture element memory 9. Finally, output images with good contrasts on the concerned positions are obtained by making the CPU 4 to have parameters to indicate distribution of concentration values in groups of the concerned picture elements, determine tone conversion characteristics of the medical-use images based on the above parameters, and set the characteristics on a tone conversion table 10. |
