• Articles
  • API Documentation
Search Results for

    Show / Hide Table of Contents
    • SixLabors.ImageSharp
      • ByteOrder
      • Color
      • ColorMatrix
      • Configuration
      • DenseMatrix<T>
      • GeometryUtilities
      • GraphicOptionsDefaultsExtensions
      • GraphicsOptions
      • IDeepCloneable
      • IDeepCloneable<T>
      • Image
      • Image<TPixel>
      • ImageExtensions
      • ImageFormatException
      • ImageFrame
      • ImageFrame<TPixel>
      • ImageFrameCollection
      • ImageFrameCollection<TPixel>
      • ImageFrameCollectionExtensions
      • ImageInfo
      • ImageProcessingException
      • IndexedImageFrame<TPixel>
      • InvalidImageContentException
      • Matrix3x2Extensions
      • MetadataExtensions
      • Number
      • PixelAccessor<TPixel>
      • PixelAccessorAction<TPixel>
      • PixelAccessorAction<TPixel1, TPixel2, TPixel3>
      • PixelAccessorAction<TPixel1, TPixel2>
      • Point
      • PointF
      • Rational
      • ReadOrigin
      • Rectangle
      • RectangleF
      • SignedRational
      • Size
      • SizeF
      • UnknownImageFormatException
    • SixLabors.ImageSharp.Advanced
      • AdvancedImageExtensions
      • IImageVisitor
      • IImageVisitorAsync
      • IRowIntervalOperation
      • IRowIntervalOperation<TBuffer>
      • IRowOperation
      • IRowOperation<TBuffer>
      • ParallelExecutionSettings
      • ParallelRowIterator
    • SixLabors.ImageSharp.ColorSpaces
      • CieLab
      • CieLch
      • CieLchuv
      • CieLuv
      • CieXyy
      • CieXyz
      • Cmyk
      • Hsl
      • Hsv
      • HunterLab
      • Illuminants
      • LinearRgb
      • Lms
      • Rgb
      • RgbWorkingSpaces
      • YCbCr
    • SixLabors.ImageSharp.ColorSpaces.Companding
      • GammaCompanding
      • LCompanding
      • Rec2020Companding
      • Rec709Companding
      • SRgbCompanding
    • SixLabors.ImageSharp.ColorSpaces.Conversion
      • CieXyChromaticityCoordinates
      • ColorSpaceConverter
      • ColorSpaceConverterOptions
      • GammaWorkingSpace
      • IChromaticAdaptation
      • LmsAdaptationMatrix
      • LWorkingSpace
      • Rec2020WorkingSpace
      • Rec709WorkingSpace
      • RgbPrimariesChromaticityCoordinates
      • RgbWorkingSpace
      • SRgbWorkingSpace
      • VonKriesChromaticAdaptation
    • SixLabors.ImageSharp.Compression.Zlib
      • DeflateCompressionLevel
    • SixLabors.ImageSharp.Diagnostics
      • MemoryDiagnostics
      • UndisposedAllocationDelegate
    • SixLabors.ImageSharp.Formats
      • DecoderOptions
      • IImageDecoder
      • IImageEncoder
      • IImageFormat
      • IImageFormat<TFormatMetadata, TFormatFrameMetadata>
      • IImageFormat<TFormatMetadata>
      • IImageFormatConfigurationModule
      • IImageFormatDetector
      • ImageDecoder
      • ImageEncoder
      • ImageFormatManager
      • ISpecializedDecoderOptions
      • ISpecializedImageDecoder<T>
      • PixelTypeInfo
      • QuantizingImageEncoder
      • SpecializedImageDecoder<T>
    • SixLabors.ImageSharp.Formats.Bmp
      • BmpBitsPerPixel
      • BmpConfigurationModule
      • BmpDecoder
      • BmpDecoderOptions
      • BmpEncoder
      • BmpFileMarkerType
      • BmpFormat
      • BmpImageFormatDetector
      • BmpInfoHeaderType
      • BmpMetadata
      • RleSkippedPixelHandling
    • SixLabors.ImageSharp.Formats.Gif
      • GifColorTableMode
      • GifConfigurationModule
      • GifDecoder
      • GifDisposalMethod
      • GifEncoder
      • GifFormat
      • GifFrameMetadata
      • GifImageFormatDetector
      • GifMetadata
      • IGifExtension
    • SixLabors.ImageSharp.Formats.Jpeg
      • JpegConfigurationModule
      • JpegDecoder
      • JpegDecoderOptions
      • JpegDecoderResizeMode
      • JpegEncoder
      • JpegEncodingColor
      • JpegFormat
      • JpegImageFormatDetector
      • JpegMetadata
    • SixLabors.ImageSharp.Formats.Jpeg.Components.Encoder
      • HuffmanSpec
    • SixLabors.ImageSharp.Formats.Pbm
      • PbmColorType
      • PbmComponentType
      • PbmConfigurationModule
      • PbmDecoder
      • PbmEncoder
      • PbmEncoding
      • PbmFormat
      • PbmImageFormatDetector
      • PbmMetadata
    • SixLabors.ImageSharp.Formats.Png
      • PngBitDepth
      • PngChunkFilter
      • PngColorType
      • PngCompressionLevel
      • PngConfigurationModule
      • PngDecoder
      • PngEncoder
      • PngFilterMethod
      • PngFormat
      • PngImageFormatDetector
      • PngInterlaceMode
      • PngMetadata
      • PngTextData
      • PngTransparentColorMode
    • SixLabors.ImageSharp.Formats.Tga
      • TgaBitsPerPixel
      • TgaCompression
      • TgaConfigurationModule
      • TgaDecoder
      • TgaEncoder
      • TgaFormat
      • TgaImageFormatDetector
      • TgaImageType
      • TgaImageTypeExtensions
      • TgaMetadata
    • SixLabors.ImageSharp.Formats.Tiff
      • TiffBitsPerPixel
      • TiffBitsPerSample
      • TiffConfigurationModule
      • TiffDecoder
      • TiffEncoder
      • TiffFormat
      • TiffFormatType
      • TiffFrameMetadata
      • TiffImageFormatDetector
      • TiffMetadata
    • SixLabors.ImageSharp.Formats.Tiff.Compression
      • FaxCompressionOptions
    • SixLabors.ImageSharp.Formats.Tiff.Compression.Decompressors
      • LzwString
    • SixLabors.ImageSharp.Formats.Tiff.Constants
      • TiffCompression
      • TiffInkSet
      • TiffNewSubfileType
      • TiffPhotometricInterpretation
      • TiffPlanarConfiguration
      • TiffPredictor
      • TiffSampleFormat
      • TiffSubfileType
    • SixLabors.ImageSharp.Formats.Webp
      • WebpBitsPerPixel
      • WebpConfigurationModule
      • WebpDecoder
      • WebpEncoder
      • WebpEncodingMethod
      • WebpFileFormatType
      • WebpFormat
      • WebpFrameMetadata
      • WebpImageFormatDetector
      • WebpMetadata
      • WebpTransparentColorMode
    • SixLabors.ImageSharp.Memory
      • AllocationOptions
      • Buffer2D<T>
      • Buffer2DExtensions
      • Buffer2DRegion<T>
      • IMemoryGroup<T>
      • InvalidMemoryOperationException
      • MemoryAllocator
      • MemoryAllocatorExtensions
      • MemoryAllocatorOptions
      • MemoryGroupEnumerator<T>
      • RowInterval
      • SimpleGcMemoryAllocator
    • SixLabors.ImageSharp.Metadata
      • FrameDecodingMode
      • ImageFrameMetadata
      • ImageMetadata
      • PixelResolutionUnit
    • SixLabors.ImageSharp.Metadata.Profiles.Exif
      • EncodedString
      • EncodedString.CharacterCode
      • ExifDataType
      • ExifOrientationMode
      • ExifParts
      • ExifProfile
      • ExifTag
      • ExifTag<TValueType>
      • IExifValue
      • IExifValue<TValueType>
    • SixLabors.ImageSharp.Metadata.Profiles.Icc
      • IccColorSpaceType
      • IccDeviceAttribute
      • IccPrimaryPlatformType
      • IccProfile
      • IccProfileClass
      • IccProfileFlag
      • IccProfileHeader
      • IccProfileId
      • IccProfileTag
      • IccRenderingIntent
      • IccTagDataEntry
      • IccTypeSignature
      • IccVersion
      • InvalidIccProfileException
    • SixLabors.ImageSharp.Metadata.Profiles.Iptc
      • IptcProfile
      • IptcTag
      • IptcTagExtensions
      • IptcValue
    • SixLabors.ImageSharp.Metadata.Profiles.Xmp
      • XmpProfile
    • SixLabors.ImageSharp.PixelFormats
      • A8
      • Abgr32
      • Argb32
      • Bgr24
      • Bgr565
      • Bgra32
      • Bgra4444
      • Bgra5551
      • Byte4
      • HalfSingle
      • HalfVector2
      • HalfVector4
      • IPackedVector<TPacked>
      • IPixel
      • IPixel<TSelf>
      • L16
      • L8
      • La16
      • La32
      • NormalizedByte2
      • NormalizedByte4
      • NormalizedShort2
      • NormalizedShort4
      • PixelAlphaCompositionMode
      • PixelAlphaRepresentation
      • PixelBlender<TPixel>
      • PixelColorBlendingMode
      • PixelConversionModifiers
      • PixelOperations<TPixel>
      • Rg32
      • Rgb24
      • Rgb48
      • Rgba1010102
      • Rgba32
      • Rgba64
      • RgbaVector
      • Short2
      • Short4
    • SixLabors.ImageSharp.Processing
      • AdaptiveThresholdExtensions
      • AffineTransformBuilder
      • AnchorPositionMode
      • AutoOrientExtensions
      • BackgroundColorExtensions
      • BinaryDitherExtensions
      • BinaryThresholdExtensions
      • BinaryThresholdMode
      • BlackWhiteExtensions
      • BokehBlurExtensions
      • BoxBlurExtensions
      • BrightnessExtensions
      • ColorBlindnessExtensions
      • ColorBlindnessMode
      • ContrastExtensions
      • CropExtensions
      • DetectEdgesExtensions
      • DitherExtensions
      • DrawImageExtensions
      • EntropyCropExtensions
      • FilterExtensions
      • FlipExtensions
      • FlipMode
      • GaussianBlurExtensions
      • GaussianSharpenExtensions
      • GlowExtensions
      • GrayscaleExtensions
      • GrayscaleMode
      • HistogramEqualizationExtensions
      • HueExtensions
      • IImageProcessingContext
      • InvertExtensions
      • KnownDitherings
      • KnownEdgeDetectorKernels
      • KnownFilterMatrices
      • KnownQuantizers
      • KnownResamplers
      • KodachromeExtensions
      • LightnessExtensions
      • LomographExtensions
      • MedianBlurExtensions
      • OilPaintExtensions
      • OpacityExtensions
      • PadExtensions
      • PixelateExtensions
      • PixelRowDelegateExtensions
      • PixelRowOperation
      • PixelRowOperation<T>
      • PolaroidExtensions
      • ProcessingExtensions
      • ProjectiveTransformBuilder
      • QuantizeExtensions
      • ResizeExtensions
      • ResizeMode
      • ResizeOptions
      • RotateExtensions
      • RotateFlipExtensions
      • RotateMode
      • SaturateExtensions
      • SepiaExtensions
      • SkewExtensions
      • SwizzleExtensions
      • TaperCorner
      • TaperSide
      • TransformExtensions
      • VignetteExtensions
    • SixLabors.ImageSharp.Processing.Processors
      • CloningImageProcessor
      • CloningImageProcessor<TPixel>
      • ICloningImageProcessor
      • ICloningImageProcessor<TPixel>
      • IImageProcessor
      • IImageProcessor<TPixel>
      • ImageProcessor<TPixel>
    • SixLabors.ImageSharp.Processing.Processors.Binarization
      • AdaptiveThresholdProcessor
      • BinaryThresholdProcessor
    • SixLabors.ImageSharp.Processing.Processors.Convolution
      • BokehBlurProcessor
      • BorderWrappingMode
      • BoxBlurProcessor
      • EdgeDetector2DKernel
      • EdgeDetector2DProcessor
      • EdgeDetectorCompassKernel
      • EdgeDetectorCompassProcessor
      • EdgeDetectorKernel
      • EdgeDetectorProcessor
      • GaussianBlurProcessor
      • GaussianSharpenProcessor
      • MedianBlurProcessor
    • SixLabors.ImageSharp.Processing.Processors.Dithering
      • ErrorDither
      • IDither
      • IPaletteDitherImageProcessor<TPixel>
      • OrderedDither
      • PaletteDitherProcessor
    • SixLabors.ImageSharp.Processing.Processors.Drawing
      • DrawImageProcessor
    • SixLabors.ImageSharp.Processing.Processors.Effects
      • IPixelRowDelegate
      • OilPaintingProcessor
      • PixelateProcessor
    • SixLabors.ImageSharp.Processing.Processors.Filters
      • AchromatomalyProcessor
      • AchromatopsiaProcessor
      • BlackWhiteProcessor
      • BrightnessProcessor
      • ContrastProcessor
      • DeuteranomalyProcessor
      • DeuteranopiaProcessor
      • FilterProcessor
      • GrayscaleBt601Processor
      • GrayscaleBt709Processor
      • HueProcessor
      • InvertProcessor
      • KodachromeProcessor
      • LightnessProcessor
      • LomographProcessor
      • OpacityProcessor
      • PolaroidProcessor
      • ProtanomalyProcessor
      • ProtanopiaProcessor
      • SaturateProcessor
      • SepiaProcessor
      • TritanomalyProcessor
      • TritanopiaProcessor
    • SixLabors.ImageSharp.Processing.Processors.Normalization
      • AdaptiveHistogramEqualizationProcessor
      • AdaptiveHistogramEqualizationSlidingWindowProcessor
      • AutoLevelProcessor
      • GlobalHistogramEqualizationProcessor
      • HistogramEqualizationMethod
      • HistogramEqualizationOptions
      • HistogramEqualizationProcessor
    • SixLabors.ImageSharp.Processing.Processors.Overlays
      • BackgroundColorProcessor
      • GlowProcessor
      • VignetteProcessor
    • SixLabors.ImageSharp.Processing.Processors.Quantization
      • DefaultPixelSamplingStrategy
      • ExtensivePixelSamplingStrategy
      • IPixelSamplingStrategy
      • IQuantizer
      • IQuantizer<TPixel>
      • OctreeQuantizer
      • OctreeQuantizer<TPixel>
      • PaletteQuantizer
      • QuantizeProcessor
      • QuantizerConstants
      • QuantizerOptions
      • QuantizerUtilities
      • WebSafePaletteQuantizer
      • WernerPaletteQuantizer
      • WuQuantizer
    • SixLabors.ImageSharp.Processing.Processors.Transforms
      • AffineTransformProcessor
      • AutoOrientProcessor
      • BicubicResampler
      • BoxResampler
      • CropProcessor
      • CubicResampler
      • DegenerateTransformException
      • EntropyCropProcessor
      • FlipProcessor
      • IResampler
      • IResamplingTransformImageProcessor<TPixel>
      • ISwizzler
      • LanczosResampler
      • NearestNeighborResampler
      • ProjectiveTransformProcessor
      • ResizeProcessor
      • RotateProcessor
      • SkewProcessor
      • SwizzleProcessor<TSwizzler>
      • TriangleResampler
      • WelchResampler

    Class OpacityExtensions

    Defines extensions that allow the alteration of the opacity component of an Image using Mutate/Clone.

    Inheritance
    Object
    OpacityExtensions
    Namespace: SixLabors.ImageSharp.Processing
    Assembly: SixLabors.ImageSharp.dll
    Syntax
    public static class OpacityExtensions : object

    Methods

    | Improve this Doc View Source

    Opacity(IImageProcessingContext, Single)

    Multiplies the alpha component of the image.

    Declaration
    public static IImageProcessingContext Opacity(this IImageProcessingContext source, float amount)
    Parameters
    Type Name Description
    IImageProcessingContext source

    The current image processing context.

    Single amount

    The proportion of the conversion. Must be between 0 and 1.

    Returns
    Type Description
    IImageProcessingContext

    The IImageProcessingContext.

    | Improve this Doc View Source

    Opacity(IImageProcessingContext, Single, Rectangle)

    Multiplies the alpha component of the image.

    Declaration
    public static IImageProcessingContext Opacity(this IImageProcessingContext source, float amount, Rectangle rectangle)
    Parameters
    Type Name Description
    IImageProcessingContext source

    The current image processing context.

    Single amount

    The proportion of the conversion. Must be between 0 and 1.

    Rectangle rectangle

    The Rectangle structure that specifies the portion of the image object to alter.

    Returns
    Type Description
    IImageProcessingContext

    The IImageProcessingContext.

    • Improve this Doc
    • View Source
    In This Article
    Back to top Generated by DocFX