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Applied patch [ 1339764 ] Add wxImage::ConvertToGreyscale

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Jamie Gadd


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@36995 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Julian Smart
2006-01-19 09:55:15 +00:00
parent f96a9d34e6
commit ec85956ae9
3 changed files with 56 additions and 2 deletions
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8
include/wx/image.h
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@@ -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;