F2QBlur

F2QBlur function operates in frequency domain and requires for 32 bit avisynth+ FFTw3 32 bit dll or for 64 bit avisynth+ FFTw3 64 bit dll. As these dll s are not thread safe this function operates in MT_SERIALIZED state.

FQBlur function blurs image in circular(as in out of focus) or linear (as due to motion) fashion or as per user specified PSF (given in a text file).

In case of motion blur the line is assumed to be symmetric about origin, the end coordinates of blur line x and y specified will be extended to -x, -y to get full line. In case of out of focus blur the x coordinate is the radius of blur.

All 3 colors of RGB formats are processed, in case of YUY2 only Luma (Y) is blurred. In case of YUV formats Y and for YUV444 if opted U and V will also be blurred.

Alternatively user can input his own psf in text format conforming strictly to following :
1.Must have number 1 in first line.
2. Second line first integer is number of values present in each row. The second value on this line is number of rows. A maximum of 16 X 16 rows and columns can only be specified,
Third line onwards PSF values in rows and columns. The values are separated by space. Entries are in floating point.

F2qb = F2QBlur(psf = "file",  txt = "C:\avi_plugins\FQPlus\blurr.txt")


fqb1 = F2QBlur( psf = "line", x=4)
fqb2 = F2QBlur( psf = "focus", x=8)
fqb3 = F2QBlur( psf = "line", x=8,y = 2)
fqb4 = F2QBlur(psf = "line", x=12,y = -4)
fqb5 = F2QBlur(psf = "file", txt = "----")
Example text file:
1
6 6
0 0 0 0 0.15 1.0
0 0 0 0.15 1.0 0.15
0 0 0.15 1.0 0.15 0
0 0.15 1.0 0.15 0 0
0.15 1.0 0.15 0 0 0
1.0 0.15 0 0 0 0