From a8d1c8147b3ff61690270bfee455872665248148 Mon Sep 17 00:00:00 2001
From: Mattias Andrée <maandree@kth.se>
Date: Thu, 27 Jul 2017 01:03:39 +0200
Subject: Add blind-transition, improve blind-dissolve, and fix
 blind-{cone,spiral}-gradient
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Signed-off-by: Mattias Andrée <maandree@kth.se>
---
 man/blind-dissolve.1        |  1 +
 man/blind-set-alpha.1       |  1 +
 man/blind-square-gradient.1 |  1 -
 man/blind-transition.1      | 43 +++++++++++++++++++++++++++++++++++++++++++
 man/blind.7                 |  3 +++
 5 files changed, 48 insertions(+), 1 deletion(-)
 create mode 100644 man/blind-transition.1

(limited to 'man')

diff --git a/man/blind-dissolve.1 b/man/blind-dissolve.1
index b4f236c..2a91d27 100644
--- a/man/blind-dissolve.1
+++ b/man/blind-dissolve.1
@@ -14,6 +14,7 @@ where the the alpha channel fades to zero.
 Fade in from zero alpha instead of out to zero alpha.
 .SH SEE ALSO
 .BR blind (7),
+.BR blind-transition (1),
 .BR blind-set-alpha (1),
 .BR blind-stack (1),
 .BR blind-single-colour (1)
diff --git a/man/blind-set-alpha.1 b/man/blind-set-alpha.1
index fe23ee2..8eb3bb1 100644
--- a/man/blind-set-alpha.1
+++ b/man/blind-set-alpha.1
@@ -32,6 +32,7 @@ alpha value.
 .BR blind (7),
 .BR blind-single-colour (1),
 .BR blind-dissolve (1),
+.BR blind-transition (1),
 .BR blind-arithm (1),
 .BR blind-set-luma (1),
 .BR blind-invert-luma (1),
diff --git a/man/blind-square-gradient.1 b/man/blind-square-gradient.1
index 92daa3e..4b945d7 100644
--- a/man/blind-square-gradient.1
+++ b/man/blind-square-gradient.1
@@ -3,7 +3,6 @@
 blind-square-gradient - Generate a video with a square gradient
 .SH SYNOPSIS
 .B blind-square-gradient
-[-b]
 -w
 .I width
 -h
diff --git a/man/blind-transition.1 b/man/blind-transition.1
new file mode 100644
index 0000000..15e7fa5
--- /dev/null
+++ b/man/blind-transition.1
@@ -0,0 +1,43 @@
+.TH BLIND-TRANSITION 1 blind
+.SH NAME
+blind-transition - Turn a gradient video to transition-gradient video
+.SH SYNOPSIS
+.B blind-transition
+[-ir] [-s
+.IR softness-stream ]
+.SH DESCRIPTION
+.B blind-transition
+reads a video from stdin and prints a version of
+it to stdout suitable for input to
+.BR blind-set-alpha (1)
+to for creation an transition effect.
+.P
+The luma in stdin is used to determine when a
+pixel in the video shall be opaque.
+.SH OPTION
+.TP
+.B -i
+Invert the transition.
+.TP
+.B -r
+Reverse the transition.
+.TP
+.BR -s \ \fIsoftness-stream\fP
+The luma multiplied by the opacity for each pixel
+in each frame in the video from
+.I softness-stream
+will be used as the transitional softness for that
+pixel in the video.
+.SH SEE ALSO
+.BR blind (7),
+.BR blind-set-alpha (1),
+.BR blind-dissolve (1),
+.BR blind-stack (1),
+.BR blind-cone-gradient (1),
+.BR blind-linear-gradient (1),
+.BR blind-radial-gradient (1),
+.BR blind-spiral-gradient (1),
+.BR blind-square-gradient (1)
+.SH AUTHORS
+Mattias Andrée
+.RI < maandree@kth.se >
diff --git a/man/blind.7 b/man/blind.7
index e7fc942..1bf0a3b 100644
--- a/man/blind.7
+++ b/man/blind.7
@@ -323,6 +323,9 @@ Converts blind video to a regular video
 .BR blind-tranlate (1)
 Perform framewise translation of a video
 .TP
+.BR blind-transition (1)
+Turn a gradient video to transition-gradient video
+.TP
 .BR blind-transpose (1)
 Transpose a video
 .TP
-- 
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