| 摘要 |
FIELD: information technology.SUBSTANCE: method involves selecting the high-frequency component of pixel values of an image component; subtracting, from the initial pixel values of the image component, corresponding values of the low-frequency component thereof; calculating mathematical expectation and mean-square deviation of the high-frequency component of all pixels of the image component; dividing the matrix of the high-frequency component into columns or rows and calculating values of mathematical expectation and mean-square deviation of each column or values of mathematical expectation and mean-square deviation of each row; correcting the values of the high-frequency component; an image with reduced noise is formed by summation of values of the low-frequency component and the corrected values of the high-frequency component.EFFECT: reduced noise in an electronic image.3 cl, 15 dwg |
