ErrorDiffusionDithererSierra2 Property

Gets an ErrorDiffusionDitherer instance using the two-line filter proposed by Frankie Sierra in 1990. Uses a 5x2 matrix so this somewhat faster than the three-line version and still provides a similar quality.

Definition

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

C#

public static ErrorDiffusionDitherer Sierra2 { get; }

VB

Public Shared ReadOnly Property Sierra2 As ErrorDiffusionDitherer
	Get

C++

public:
static property ErrorDiffusionDitherer^ Sierra2 {
	ErrorDiffusionDitherer^ get ();
}

F#

static member Sierra2 : ErrorDiffusionDitherer with get

Property Value

ErrorDiffusionDitherer

Examples

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

C#

public static IReadWriteBitmapData ToDitheredSierra2(IReadWriteBitmapData source, IQuantizer quantizer)
{
    IDitherer ditherer = ErrorDiffusionDitherer.Sierra2;

    // 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.

ErrorDiffusionDithererSierra2 Property

Definition

Property Value

Examples

See Also

Reference