Warning fixes after recent commits.

[wxWidgets.git] / include / wx / image.h

diff --git a/include/wx/image.h b/include/wx/image.h
index e6850220093824a9c9e08ce53022d2eb77b0a95a..b7b9d9a8d50f853c13dc819c8fc5f6cc5570da90 100644 (file)
--- a/include/wx/image.h
+++ b/include/wx/image.h
@@ -160,7 +160,7 @@ public:
     public:
       RGBValue(unsigned char r=0, unsigned char g=0, unsigned char b=0)
         : red(r), green(g), blue(b) {}
-        unsigned char red;  
+        unsigned char red;
         unsigned char green;
         unsigned char blue;
     };
@@ -171,7 +171,7 @@ public:
     public:
         HSVValue(double h=0.0, double s=0.0, double v=0.0)
             : hue(h), saturation(s), value(v) {}
-        double hue;  
+        double hue;
         double saturation;
         double value;
     };
@@ -241,6 +241,10 @@ public:
     void Replace( unsigned char r1, unsigned char g1, unsigned char b1,
                   unsigned char r2, unsigned char g2, unsigned char b2 );
 
+    // Convert to greyscale image. Uses the luminance component (Y) of the image.
+    // The luma value (YUV) is calculated using (R * lr) + (G * lg) + (B * lb), defaults to ITU-T BT.601
+    wxImage ConvertToGreyscale( double lr = 0.299, double lg = 0.587, double lb = 0.114 ) const;
+
     // convert to monochrome image (<r,g,b> will be replaced by white,
     // everything else by black)
     wxImage ConvertToMono( unsigned char r, unsigned char g, unsigned char b ) const;