Enum PngCompressionStrategy

Namespace

ImageMagick.Formats

Assembly

Magick.NET-Q8-AnyCPU.dll

Specifies the PNG compression strategy.

public enum PngCompressionStrategy

Fields

Adaptive = 5

Adaptive filtering is used when quality is greater than 50 and the image does not have a color map; otherwise, no filtering is used.

AdaptiveMinimumSum = 6

Adaptive filtering with minimum-sum-of-absolute-values is used.

Default = 4

Use the default compression strategy.

Filtered = 1

Compression algorithm with filtering.

Fixed = 3

Use a fixed strategy for compression.

HuffmanOnly = 0

Use the Huffman compression.

LOCO = 7

LOCO color transformation (intrapixel differencing) and adaptive filtering with minimum-sum-of-absolute-values are used. Only applicable if the output is MNG.

RLE = 2

Use the Run-Length Encoding compression.

ZRLEAdaptive = 8

The zlib Z_RLE compression strategy (or the Z_HUFFMAN_ONLY strategy when compression level is 0) is used with adaptive PNG filtering.

ZRLENoFilter = 9

The zlib Z_RLE compression strategy (or the Z_HUFFMAN_ONLY strategy when compression level is 0) is used with no PNG filtering.