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| author | Mattias Andrée <maandree@kth.se> | 2017-07-05 19:29:13 +0200 |
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| committer | Mattias Andrée <maandree@kth.se> | 2017-07-05 19:29:13 +0200 |
| commit | 34d326d46d31332fa2182793475672617933a939 (patch) | |
| tree | 7ec8dbfa6756a00d9f7f9fb68a23461c03915a4a /man | |
| parent | Add blind-extract-alpha (diff) | |
| download | blind-34d326d46d31332fa2182793475672617933a939.tar.gz blind-34d326d46d31332fa2182793475672617933a939.tar.bz2 blind-34d326d46d31332fa2182793475672617933a939.tar.xz | |
Add blind-dual-key
Signed-off-by: Mattias Andrée <maandree@kth.se>
Diffstat (limited to '')
| -rw-r--r-- | man/blind-dual-key.1 | 55 | ||||
| -rw-r--r-- | man/blind.7 | 3 |
2 files changed, 58 insertions, 0 deletions
diff --git a/man/blind-dual-key.1 b/man/blind-dual-key.1 new file mode 100644 index 0000000..6cfe7b8 --- /dev/null +++ b/man/blind-dual-key.1 @@ -0,0 +1,55 @@ +.TH BLIND-DUAL-KEY 1 blind +.SH NAME +blind-dual-key - Apply transparency to a video based on two videos and two key +.SH SYNOPSIS +.B blind-dual-key +.I X +.I Y +.I Z +.I dual-X +.I dual-Y +.I dual-Z +.I dual-video +.SH DESCRIPTION +.B blind-dual-key +reads a video from stdin and a video +.IR dual-video . +These two videos should be idential, except +with two different background colours. The +background colour used in the video from +stdin should be specified in the arguments +.IR X , +.IR Y , +and +.IR Z , +using the CIE XYZ colour model. The +background colour used in the video from +.I dual-video +should be specified in the arguments +.IR dual-X , +.IR dual-Y , +and +.IR dual-Z , +using the CIE XYZ colour model. Using this information, +.B blind-dual-key +reconstruct the alpha channel of the video +and prints the video with its alpha channel to +stdout. +.SH NOTES +.B blind-dual-key +may be changed in the future to use some other colour model, +therefore, it is recommended to also use +.BR blind-colour-ciexyz (1) +if you are specifying the colour in CIE XYZ. +.P +When making a video whose transparancy is recovered with +.BR blind-dual-key , +select to opposite background colours, for +example black and white or green and magenta. +.SH SEE ALSO +.BR blind (7), +.BR blind-colour-ciexyz (1), +.BR blind-colour-srgb (1) +.SH AUTHORS +Mattias Andrée +.RI < maandree@kth.se > diff --git a/man/blind.7 b/man/blind.7 index 79ac8eb..f8295fe 100644 --- a/man/blind.7 +++ b/man/blind.7 @@ -76,6 +76,9 @@ Calculate the dot product of colours in a video .BR blind-double-sine-wave (1) Apply double-sine-wave repetition to gradient .TP +.BR blind-dual-key(1) +Apply transparency to a video based on two videos and two key +.TP .BR blind-extend (1) Add margins to a video .TP |