blind-dual-key.1 - blind - suckless command-line video editing utility | |
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blind-dual-key.1 (1399B) | |
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1 .TH BLIND-DUAL-KEY 1 blind | |
2 .SH NAME | |
3 blind-dual-key - Apply transparency to a video based on two videos and t… | |
4 .SH SYNOPSIS | |
5 .B blind-dual-key | |
6 .I X | |
7 .I Y | |
8 .I Z | |
9 .I dual-X | |
10 .I dual-Y | |
11 .I dual-Z | |
12 .I dual-stream | |
13 .SH DESCRIPTION | |
14 .B blind-dual-key | |
15 reads a video from stdin and a video | |
16 .IR dual-stream . | |
17 These two videos should be idential, except | |
18 with two different background colours. The | |
19 background colour used in the video from | |
20 stdin should be specified in the arguments | |
21 .IR X , | |
22 .IR Y , | |
23 and | |
24 .IR Z , | |
25 using the CIE XYZ colour model. The | |
26 background colour used in the video from | |
27 .I dual-stream | |
28 should be specified in the arguments | |
29 .IR dual-X , | |
30 .IR dual-Y , | |
31 and | |
32 .IR dual-Z , | |
33 using the CIE XYZ colour model. Using this information, | |
34 .B blind-dual-key | |
35 reconstruct the alpha channel of the video | |
36 and prints the video with its alpha channel to | |
37 stdout. | |
38 .SH NOTES | |
39 .B blind-dual-key | |
40 may be changed in the future to use some other colour model, | |
41 therefore, it is recommended to also use | |
42 .BR blind-colour-ciexyz (1) | |
43 if you are specifying the colour in CIE XYZ. | |
44 .P | |
45 When making a video whose transparancy is recovered with | |
46 .BR blind-dual-key , | |
47 select to opposite background colours, for | |
48 example black and white or green and magenta. | |
49 .SH SEE ALSO | |
50 .BR blind (7), | |
51 .BR blind-colour-ciexyz (1), | |
52 .BR blind-colour-srgb (1), | |
53 .BR blind-chroma-key (1), | |
54 .BR blind-primary-key (1) | |
55 .SH AUTHORS | |
56 Mattias Andrée | |
57 .RI < [email protected] > |