FQBlur function operates in frequency domain and requires for avisynth FFTw3 32 bit dll or for avisynth+ FFTw3 64 bit dll, to be in the path.
FQBlur function in circular or linear (motion) fashion blurs an image .
In case of motion blur the line is assumed to be symmetric about origin, the end coordinates of blur line will be -x, -y and x,y. In case of out of focus blur the xcoordinate is the radius of blur.
While all 3 color planes of RGB formats are processed, in case of YUY2 and Planar only Luma (Y) is blurred.RGB formats will run slower as processing has to be performed on the three color planes separately.
| Description | Name | Type | Limits | Default |
| Input clip | clip | must have the fields separated | none | |
| Whether blur is linear as in motion blur or out of focus type | line | boolean | true for motion blur, false for focus | true |
| blur line right end x coordinate or radius of focus blur. Line assumed symmetric about origin | x | integer | 2 to 1/8 frame width | 6 |
| blur line right end y coordinate. Line assumed symmetric about origin | y | integer | - 1/8th to 1/8th frame height | 2 |
| value of spike to be added | spike | float | 0 | 2 |
assumeframebased() separatefields(). selectodd() trim(0,100) crop(250,0,400,-40) fqb1 = FQBlur( line = false, x=4) fqb2 = FQBlur( line = false, x=8,y = 0) fqb3 = FQBlur( line = true, x=8,y = 2) fqb4 = FQBlur( line = true, x=12,y = -4
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