Class PbmDecoder

Namespace

SixLabors.ImageSharp.Formats.Pbm

Assembly

SixLabors.ImageSharp.dll

Image decoder for reading PGM, PBM or PPM bitmaps from a stream. These images are from the family of PNM images.

• PBMBlack and white images.
• PGMGrayscale images.
• PPMColor images, with RGB pixels.

The specification of these images is found at http://netpbm.sourceforge.net/doc/pnm.html.

public sealed class PbmDecoder : ImageDecoder, IImageDecoder

Inheritance

object

ImageDecoder

PbmDecoder

Implements

IImageDecoder

Inherited Members

ImageDecoder.Decode<TPixel>(DecoderOptions, Stream)

ImageDecoder.Decode(DecoderOptions, Stream)

ImageDecoder.DecodeAsync<TPixel>(DecoderOptions, Stream, CancellationToken)

ImageDecoder.DecodeAsync(DecoderOptions, Stream, CancellationToken)

ImageDecoder.Identify(DecoderOptions, Stream)

ImageDecoder.IdentifyAsync(DecoderOptions, Stream, CancellationToken)

object.GetType()

object.ToString()

object.Equals(object)

object.Equals(object, object)

object.ReferenceEquals(object, object)

object.GetHashCode()

Properties

Instance

Gets the shared instance.

public static PbmDecoder Instance { get; }

Property Value

PbmDecoder

Methods

Decode(DecoderOptions, Stream, CancellationToken)

Decodes the image from the specified stream to an Image.

protected override Image Decode(DecoderOptions options, Stream stream, CancellationToken cancellationToken)

Parameters

options DecoderOptions

The general decoder options.

stream Stream

The Stream containing image data.

cancellationToken CancellationToken

The token to monitor for cancellation requests.

Returns

Image

The Image.

Remarks

This method is designed to support the ImageSharp internal infrastructure and is not recommended for direct use.

Exceptions

ImageFormatException

Thrown if the encoded image contains errors.

Decode<TPixel>(DecoderOptions, Stream, CancellationToken)

Decodes the image from the specified stream to an Image<TPixel> of a specific pixel type.

protected override Image<TPixel> Decode<TPixel>(DecoderOptions options, Stream stream, CancellationToken cancellationToken) where TPixel : unmanaged, IPixel<TPixel>

Parameters

options DecoderOptions

The general decoder options.

stream Stream

The Stream containing image data.

cancellationToken CancellationToken

The token to monitor for cancellation requests.

Returns

Image<TPixel>

The Image<TPixel>.

Type Parameters

TPixel

The pixel format.

Remarks

This method is designed to support the ImageSharp internal infrastructure and is not recommended for direct use.

Exceptions

ImageFormatException

Thrown if the encoded image contains errors.

Identify(DecoderOptions, Stream, CancellationToken)

Reads the raw image information from the specified stream.

protected override ImageInfo Identify(DecoderOptions options, Stream stream, CancellationToken cancellationToken)

Parameters

options DecoderOptions

The general decoder options.

stream Stream

The Stream containing image data.

cancellationToken CancellationToken

The token to monitor for cancellation requests.

Returns

ImageInfo

The ImageInfo object.

Remarks

This method is designed to support the ImageSharp internal infrastructure and is not recommended for direct use.

Exceptions

ImageFormatException

Thrown if the encoded image contains errors.