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-rw-r--r--man/blind-primary-key.15
1 files changed, 4 insertions, 1 deletions
diff --git a/man/blind-primary-key.1 b/man/blind-primary-key.1
index 6203592..d998edc 100644
--- a/man/blind-primary-key.1
+++ b/man/blind-primary-key.1
@@ -3,7 +3,7 @@
blind-primary-key - Replace a primary with transparency
.SH SYNOPSIS
.B blind-primary-key
-[-1 | -2 | -3] [-g] (-z
+[-1 | -2 | -3] [-gk] (-z
.I x1
.I y1
.I x2
@@ -67,6 +67,9 @@ of the first primary, with transparency.
Replace the the third primary, instead
of the first primary, with transparency.
.TP
+.B -k
+Do not remove the keyed primary.
+.TP
.B -g
The video is, with the exception of the keyed primary,
greyscale and the output video shall remain greyscale.