| 摘要 |
An image processing method comprising, dividing an input image into a plurality of divided images, calculating a difference image between a divided image before noise removal and a divided image after noise removal for each of the plurality of divided images, calculating a relative value between a pixel intensity in the divided image before noise removal and a pixel intensity in the difference image for each of the plurality of divided images, detecting a frequency distribution of relative values in a background area of the input image, contained in frequency distribution of relative values calculated with respect to the plurality of divided images, and estimating an intensity of noise in accordance with the frequency distribution of the relative values in the background area. |
