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authorMattias Andrée <maandree@operamail.com>2014-03-10 16:46:02 +0100
committerMattias Andrée <maandree@operamail.com>2014-03-10 16:46:02 +0100
commitee1044c6836ceea91497f36c561b46cc827f229e (patch)
treed5b4338d7de51e0c2532d3f1d5904a6467e16aea /info/blueshift.texinfo
parentm doc (diff)
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make clip, linearise and standardise more flexible by making it possible to restrict which colour curves to affect
Signed-off-by: Mattias Andrée <maandree@operamail.com>
Diffstat (limited to 'info/blueshift.texinfo')
-rw-r--r--info/blueshift.texinfo34
1 files changed, 32 insertions, 2 deletions
diff --git a/info/blueshift.texinfo b/info/blueshift.texinfo
index 3730504..7b2c3fc 100644
--- a/info/blueshift.texinfo
+++ b/info/blueshift.texinfo
@@ -325,8 +325,13 @@ lists, where 0 is the darkest colour and 1
is the brightest colour. Values outside this
range are clipped unless @code{clip_result}
is set to @code{False}. By calling @code{clip}
-(has no parameters) this clipping is done
-independently of the value of @code{clip_result}.
+this clipping is done independently of the value
+of @code{clip_result}. @code{clip} optionally
+takes one or three arguments, if one, nothing
+will happen if it is @code{False}, if three,
+nothing will happen for the red, green and
+blue colour curves if the first, second and
+third arguments, respectively, is @code{False}.
When applied these values are automatically
translated to appropriate integer values:
[0, @code{o_size} - 1].
@@ -427,10 +432,35 @@ used to calibrate white point.
Converts the colour curves from sRGB to
linear RGB. sRGB is the default colour space.
+@item linearise(rgb)
+Converts the colour curves from sRGB to
+linear RGB if @code{rgb} is @code{True}.
+sRGB is the default colour space.
+
+@item linearise(r, g, b)
+Converts the colour curves from sRGB to
+linear RGB, but only for the red, green
+and blue colour curves if @code{red},
+@code{green}, @code{blue} is @code{True},
+respectively. sRGB is the default colour
+space.
+
@item standardise()
Converts the colour curves from linear RGB to
sRGB, the default colour space.
+@item standardise(rgb)
+Converts the colour curves from linear RGB to
+sRGB, the default colour space, if @code{rgb}
+is @code{True}.
+
+@item standardise(r, g, b)
+Converts the colour curves from linear RGB to
+sRGB, the default colour space, but only for
+the red, green and blue colour curves if
+@code{red}, @code{green}, @code{blue} is
+@code{True}, respectively.
+
@item gamma(rgb)
Adjusts the gamma to @code{rgb}.