IlvLuminanceToAlphaFilter Class Reference

Luminance To Alpha filter. More...

#include <ilviews/bitmaps/filters/colmatrix.h>

Inheritance diagram for IlvLuminanceToAlphaFilter:

List of all members.

Public Member Functions
	IlvLuminanceToAlphaFilter ()
	Constructor. Initializes a new instance of an IlvLuminanceToAlphaFilter.

---

Detailed Description

Luminance To Alpha filter.

Library: ilvbmpflt

This bitmap filter lets you convert luminance values to alpha values. The luminance to alpha operation is equivalent to the following matrix operation:

 R' =       0       0      0   0   0    R
 G' =       0       0      0   0   0    G
 B' =       0       0      0   0   0    B
 A' =  0.2125  0.7154 0.0721   0   0    A
 1  =       0       0      0   0   1    1
 

See also:

IlvRGBBitmapData, IlvBitmapFilter, IlvColorMatrixFilter, IlvSaturationFilter, IlvHueRotateFilter