ffmpeg -i output2.avi -vf unsharp output3.avi
ffmpeg -i output2.avi -vf unsharp=7:7:-2:7:7:-2 output3.avi
ffmpeg -i output2.avi -vf unsharp=5:5:1.5:5:5:0.0 output3.avi

Les paramètres par défaut pour déflouter 5:5:1.0:5:5:0.0.

• 1st = kernel of luma filter x size (odd 3 to 63)
• 2nd = kernel of luma filter y size (odd 3 to 63)
• 3rd = amount of luma filtering (−1.5 to 1.5 but can be any number); negative=blur, positive=sharpen
• 4th = kernel of chroma filter x size (odd 3 to 63)
• 5th = kernel of chroma filter y size (odd 3 to 63)
• 6th = amount of chroma filtering (−1.5 to 1.5 but can be any number); negative=blur, positive=sharpen