2D Convolution filter (Mean/Gaussian)

1. Select "2D Convolution filter" on the "Filter toolbox" screen.
   
   
   
2. Select "Mean" or "Gaussian" from "kernel type".
   
   
3. Specify "Kernel size". The higher the value, the stronger the filter will be applied.
   
   
4. Click the "Preview" button to see a preview.
   
   
   
5. Click [APPLY].

Mean filter

Mean filter to smooth image and remove noise.

If "Kernel" is 3, the average of 9 (=3x3) pixels is set to the center pixel. If Kernel is 5, the average of 25 (=5x5) pixels is set to the center pixel.

Gaussian filter

Gaussian filter to smooth image and remove noise.