SKPngEncoderFilterFlags Enum

Definition

Namespace:

SkiaSharp

Assembly:

SkiaSharp.dll

Various row filters to use when encoding a PNG.

This enumeration supports a bitwise combination of its member values.

[System.Flags]
public enum SKPngEncoderFilterFlags

Inheritance

Enum

SKPngEncoderFilterFlags

Attributes

FlagsAttribute

Fields

AllFilters	248	Try all the filters.
Avg	64	Use the average of the two neighboring pixels (left and above) to predict the value of a pixel. [Average(x) = Raw(x) - floor((Raw(x-bpp)+Prior(x))/2)]
NoFilters	0	Do not use any filters.
None	8	Transmit unmodified.
Paeth	128	Compute a simple linear function of the three neighboring pixels (left, above, upper left), then chooses as predictor the neighboring pixel closest to the computed value. [Paeth(x) = Raw(x) - PaethPredictor(Raw(x-bpp), Prior(x), Prior(x-bpp))]
Sub	16	Transmit the difference between each byte and the value of the corresponding byte of the prior pixel. [Sub(x) = Raw(x) - Raw(x-bpp)]
Up	32	Transmit the difference between each byte and the value of the corresponding byte of the pixel above. [Up(x) = Raw(x) - Prior(x)]