blind-sinc-wave.1 - blind - suckless command-line video editing utility
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blind-sinc-wave.1 (1409B)
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1 .TH BLIND-SINC-WAVE 1 blind
2 .SH NAME
3 blind-sinc-wave - Apply cardinal sine-wave repetition to gradient
4 .SH SYNOPSIS
5 .B blind-sinc-wave
6 [-e]
7 .RI [ theta0-stream ]
8 .SH DESCRIPTION
9 .B blind-sinc-wave
10 reads a video from stdin, applies a filter to
11 each channel to it, and prints the result to
12 stdout. The filter is designed for applying
13 repetition to a gradient, and thus assumes the
14 range of visible values is [0, 1]. The applied
15 filter creates a cardinal sine-wave.
16 .P
17 If
18 .I theta0-stream
19 is specified, it must be a video with only
20 one pixel per frame. When applying the sine
21 function, it is applied to the sum of the
22 pixel it is applied to and the pixel in
23 the same frame in
24 .IR theta0-stream .
25 .SH NOTES
26 .BR blind-arithm (1)
27 with the
28 .B mul
29 and
30 .B div
31 operators can be used to stretch the wave.
32 .SH OPTIONS
33 .TP
34 .B -e
35 Apply optimisation that assumes all channels
36 are identical. If
37 .I theta0-stream
38 is specified, the values from its second channel
39 (the Y channel) are used for all channels.
40 .SH SEE ALSO
41 .BR blind (7),
42 .BR blind-arithm (1),
43 .BR blind-double-sine-wave (1),
44 .BR blind-round-wave (1),
45 .BR blind-sawtooth-wave (1),
46 .BR blind-sine-wave (1),
47 .BR blind-triangular-wave (1),
48 .BR blind-spectrum (1),
49 .BR blind-cone-gradient (1),
50 .BR blind-linear-gradient (1),
51 .BR blind-radial-gradient (1),
52 .BR blind-spiral-gradient (1),
53 .BR blind-square-gradient (1)
54 .SH AUTHORS
55 Mattias Andrée
56 .RI < maandree@kth.se >