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-rw-r--r--info/blueshift.texinfo10
1 files changed, 8 insertions, 2 deletions
diff --git a/info/blueshift.texinfo b/info/blueshift.texinfo
index 8570ccf..7ea6686 100644
--- a/info/blueshift.texinfo
+++ b/info/blueshift.texinfo
@@ -510,10 +510,16 @@ are @code{True}, respectively.
Inverts the all values on the colour curves
using the CIE xyY colour space instead of sRGB.
-@item cie_invert(y)
+@item cie_invert(rgb)
Inverts the all values on the colour curves
using the CIE xyY colour space instead of sRGB,
-if @code{y} is @code{true}.
+if @code{rgb} is @code{true}.
+
+@item cie_invert(r, g, b)
+Inverts the all values on the red, green and
+blue curves using the CIE xyY colour space
+instead of sRGB if @code{r}, @code{g} and
+@code{b} are @code{True}, respectively.
@item sigmoid(r, g, b)
An inverted sigmoid curve function is applied