Hue method (ILEADRasterProcess)

Visual Basic example

Visual C++ 5.0 example

Delphi 4 example

C++ Builder example

 

Syntax

short Hue (ILEADRaster *pRaster, short iAngle);

Overview

Refer to Correcting Colors.

Remarks

Changes the hue of colors in the bitmap by rotating the color wheel.

This method can rotate the color wheel in either direction. A 180-degree rotation in either direction changes each color to its complement. Positive rotation takes red toward green, green toward blue, and blue toward red. Negative rotation has the opposite effect.

This method supports 12 and 16-bit grayscale images and 48 and 64-bit color images. Support for 12 and 16-bit grayscale images and 48 and 64-bit color images is available only in the Document/Medical toolkits.

This method does not support signed data images. It returns the error code ERROR_SIGNED_DATA_NOT_SUPPORTED if a signed data image is passed to this method.

See Also

Elements:

Saturation method, Invert method

Topics:

Raster Images: Modifying Intensity Values

 

Raster Images: Where the Region Preempts the Bitmap