BitmapExtensionsQuantize Method
Quantizes a bitmap using the specified quantizer (reduces the number of colors).
Namespace: KGySoft.DrawingAssembly: KGySoft.Drawing (in KGySoft.Drawing.dll) Version: 7.2.0
public static void Quantize(
this Bitmap bitmap,
IQuantizer quantizer
)
<ExtensionAttribute>
Public Shared Sub Quantize (
bitmap As Bitmap,
quantizer As IQuantizer
)
public:
[ExtensionAttribute]
static void Quantize(
Bitmap^ bitmap,
IQuantizer^ quantizer
)
[<ExtensionAttribute>]
static member Quantize :
bitmap : Bitmap *
quantizer : IQuantizer -> unit
- bitmap Bitmap
- A Bitmap instance to be quantized.
- quantizer IQuantizer
- An IQuantizer implementation to be used for quantizing the specified bitmap.
In Visual Basic and C#, you can call this method as an instance method on any object of type
Bitmap. When you use instance method syntax to call this method, omit the first parameter. For more information, see
Extension Methods (Visual Basic) or
Extension Methods (C# Programming Guide).
This method adjusts the degree of parallelization automatically, blocks the caller, and does not support cancellation or reporting progress. Use the
BitmapDataExtensions.BeginQuantize
or
BitmapDataExtensions.QuantizeAsync (in .NET Framework 4.0 and above) methods for asynchronous call and to adjust parallelization, set up cancellation and for reporting progress.
This method quantizes bitmap in place (its original content will be overwritten). To return a new instance
use the ConvertPixelFormat extension method instead.
If the PixelFormat or the palette of bitmap is not compatible with the colors of the specified quantizer, then
the result may not be correct.
If bitmap has already the same set of colors that the specified quantizer, then it can happen
that calling this method does not change bitmap at all.
- To use predefined colors or custom quantization functions use the static methods of the PredefinedColorsQuantizer class.
See the Remarks section of its members for details and examples. - To use an optimized palette of a specified number of colors adjusted for bitmap see the OptimizedPaletteQuantizer class.
