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ColorMatrix structure (gdipluscolormatrix.h)

  • Article

The ColorMatrix structure contains a 5×5 matrix of real numbers. Several methods of the ImageAttributes class adjust image colors by using a color matrix.

Syntax

struct ColorMatrix {
  REAL m[5][5];
};

Members

m[5]

Type: REAL[5]

5×5 array of real numbers.

Remarks

A 5×5 color matrix is a homogeneous matrix for a 4-space transformation. The element in the fifth row and fifth column of a 5×5 homogeneous matrix must be 1, and all of the other elements in the fifth column must be 0. Color matrices are used to transform color vectors. The first four components of a color vector hold the red, green, blue, and alpha components (in that order) of a color. The fifth component of a color vector is always 1.

Requirements

Requirement Value
Minimum supported client Windows XP, Windows 2000 Professional [desktop apps only]
Minimum supported server Windows 2000 Server [desktop apps only]
Header gdipluscolormatrix.h (include Gdiplus.h)

See also

Color

ImageAttributes

Recoloring