Hue rotation effect

Use the hue rotate effect to alter the hue of an image by applying a color matrix based on the rotation angle.

The CLSID for this effect is CLSID_D2D1HueRotation.

Example image

The example here shows the input and output images of the hue rotate effect with a rotation angle of 270 degrees.

Before
the image before the effect.
After
the image after the transform.
ComPtr<ID2D1Effect> hueRotationEffect;
m_d2dContext->CreateEffect(CLSID_D2D1HueRotation, &hueRotationEffect);

hueRotationEffect->SetInput(0, bitmap);
hueRotationEffect->SetValue(D2D1_HUEROTATION_PROP_ANGLE, 270.0f);

m_d2dContext->BeginDraw();
m_d2dContext->DrawImage(hueRotationEffect.Get());
m_d2dContext->EndDraw();

The effect calculates a color matrix based on the rotation angle (?) you specify with the D2D1_HUEROTATION_PROP_ANGLE property. Here are the matrix equations.

hue rotation calculations

The matrix created depends only on the rotation angle. You can use the color matrix effect if you need a specific matrix.

Effect properties

Display name and index enumeration Type and default value Description
Angle
D2D1_HUEROTATION_PROP_ANGLE
FLOAT
0.0f
The angle to rotate the hue, in degrees.

Output bitmap

The output bitmap size is the same as the input bitmap size.

Requirements

Requirement Value
Minimum supported client Windows 8 and Platform Update for Windows 7 [desktop apps | Windows Store apps]
Minimum supported server Windows 8 and Platform Update for Windows 7 [desktop apps | Windows Store apps]
Header d2d1effects.h
Library d2d1.lib, dxguid.lib

ID2D1Effect