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-rw-r--r--libglitter_desaturate_double.37
1 files changed, 7 insertions, 0 deletions
diff --git a/libglitter_desaturate_double.3 b/libglitter_desaturate_double.3
index 057efb7..36a5ef8 100644
--- a/libglitter_desaturate_double.3
+++ b/libglitter_desaturate_double.3
@@ -105,6 +105,13 @@ chroma as CIE xy values, and the output's white point, the
and
.BR libglitter_get_colour_model_conversion_matrix_float (3)
can calculate and output the primary colour's CIE Y values.
+If
+.I nrasters
+is 3 and the order of the rasters is (0) red, (1) green, (2) blue,
+.I primary_ys
+can also be
+.IR NULL ,
+in which case the appropriate values for the sRGB colour model is used.
.PP
By default, these functions do not use hardware acceleration,
they run on the CPU. However the