HARFA: SCREENSHOTS AND TUTORIALS: SMOOTHBOX   Filtration SmoothBox SmoothBox is the simplest smoothing filter. All coefficients of its filtration matrix are equal to one. Dividing it by the sum of coefficients of filtration matrix normalizes the result of convolution.The box filter is not a good smoothing filter. Its attenuation doesn't increase uniformly with frequency, but fluctuates. Higher frequency terms are not attenuated enough. User of HarFA can alter radius of filtration matrix and by this the amount of smoothing effect. We can enter values from 1 to 15. The original image, the box filter with the filter matrix of radius 2, 5, 7, 10. (place your mouse on the numbers) Previous Next