FIELD: computer technology.
SUBSTANCE: invention relates to the field of computer technology for processing video data. The expected result is achieved due to the fact that when an image is obtained, the brightness value of each channel of each pixel in the image is added to the corresponding element of the histogram, while the specific method for adding is as follows: H[x][y][c][d] = H[x][y][c][d] + T, while (x, y) represent the pixel coordinates in the image; c represents the pixel channel number; d is the brightness value of a pixel in (x, y) in channel c; T is the magnification factor for brightness; R is the forgetting factor; T is assigned a smaller actual numerical value during initialization; R is set based on the required forgetting rate; if the weight of the current image fraction for the histogram is expected to decrease to 1/m after n images, then R^n = m, that is, R = m^(1/n); at the same time, before obtaining the next image, the magnification factor is multiplied by the forgetting factor, that is, T = T * R.
EFFECT: increase accuracy while reducing digital noise.
3 cl, 1 dwg
