ErrorDiffusionDithererStevensonArce Property

Gets an ErrorDiffusionDitherer instance using the hexagonal filter proposed by Stevenson and Arce in 1985. Uses a fairly large, 7x4 matrix, but due to the hexagonal arrangement of the coefficients the processing performance is comparable to a rectangular 5x3 matrix.

Definition

Namespace: KGySoft.Drawing.Imaging
Assembly: KGySoft.Drawing.Core (in KGySoft.Drawing.Core.dll) Version: 9.1.1

C#

public static ErrorDiffusionDitherer StevensonArce { get; }

VB

Public Shared ReadOnly Property StevensonArce As ErrorDiffusionDitherer
	Get

C++

public:
static property ErrorDiffusionDitherer^ StevensonArce {
	ErrorDiffusionDitherer^ get ();
}

F#

static member StevensonArce : ErrorDiffusionDitherer with get

Property Value

ErrorDiffusionDitherer

Examples

The following example demonstrates how to use the ditherer returned by this property:

C#

public static IReadWriteBitmapData ToDitheredStevensonArce(IReadWriteBitmapData source, IQuantizer quantizer)
{
    IDitherer ditherer = ErrorDiffusionDitherer.StevensonArce;

    // a.) this solution returns a new bitmap data and does not change the original one:
    return source.Clone(quantizer.PixelFormatHint, quantizer, ditherer);

    // b.) alternatively, you can perform the dithering directly on the source bitmap data:
    source.Dither(quantizer, ditherer);
    return source;
}

The example above may produce the following results:

Original image	Quantized and dithered image
Color hues with alpha gradient	Quantizing with system default 8 BPP palette
Grayscale color shades	Quantizing with black and white palette

Tip

See the Remarks section of the ErrorDiffusionDitherer class for more details and examples.

ErrorDiffusionDithererStevensonArce Property

Definition

Property Value

Examples

See Also

Reference