dev_open_file_dialog ('read_image', 'default', 'default', Selection)
read_image (Image, Selection)
* mean_image (Image, ImageMean, 9, 9)
* gauss_filter (Image, ImageGauss, 11)
rgb1_to_gray (Image, GrayImage)
fft_image (GrayImage, ImageFFT)
area_center (ImageFFT, Area, Row, Column)
gen_circle (Circle, Row, Column, 20)
gen_circle (Circle1, Row, Column, 100)
difference (Circle1, Circle1, RegionDifference)
paint_region (RegionDifference, ImageFFT, ImageResult, 255, 'fill')
fft_image_inv (ImageResult, ImageFFTInv)