various way of blurring (or unsharping)

• avgblur
• boxblur
• gblur (Gaussian Blur)
• smartblur
• sab (Shape Adaptive Blur)
• unsharp
• convolution
• fftfilt
• delogo, removelogo
• the other ideas
  • with `noise’
  • with `geq’ and `blend’
• Blur following object movement
  • `delogo’ with option `enable’
  • Otherwise
    • crop, then blur, and overlay
    • If the purpose of your “blur” is to make it difficult to identify the object