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Accord.NET (logo) ExtractNormalizedRGBChannel Class
Extract normalized RGB channel from color image.
Inheritance Hierarchy
SystemObject
  Accord.Imaging.FiltersBaseFilter
    Accord.Imaging.FiltersExtractNormalizedRGBChannel

Namespace:  Accord.Imaging.Filters
Assembly:  Accord.Imaging (in Accord.Imaging.dll) Version: 3.4.0
Syntax
public class ExtractNormalizedRGBChannel : BaseFilter
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The ExtractNormalizedRGBChannel type exposes the following members.

Constructors
  NameDescription
Public methodExtractNormalizedRGBChannel
Initializes a new instance of the ExtractNormalizedRGBChannel class.
Public methodExtractNormalizedRGBChannel(Int16)
Initializes a new instance of the ExtractNormalizedRGBChannel class.
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Properties
  NameDescription
Public propertyChannel
Normalized RGB channel to extract.
Public propertyFormatTranslations
Format translations dictionary.
(Overrides BaseFilterFormatTranslations.)
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Methods
  NameDescription
Public methodApply(Bitmap)
Apply filter to an image.
(Inherited from BaseFilter.)
Public methodApply(BitmapData)
Apply filter to an image.
(Inherited from BaseFilter.)
Public methodApply(UnmanagedImage)
Apply filter to an image in unmanaged memory.
(Inherited from BaseFilter.)
Public methodApply(UnmanagedImage, UnmanagedImage)
Apply filter to an image in unmanaged memory.
(Inherited from BaseFilter.)
Public methodEquals
Determines whether the specified object is equal to the current object.
(Inherited from Object.)
Protected methodFinalize
Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.
(Inherited from Object.)
Public methodGetHashCode
Serves as the default hash function.
(Inherited from Object.)
Public methodGetType
Gets the Type of the current instance.
(Inherited from Object.)
Protected methodMemberwiseClone
Creates a shallow copy of the current Object.
(Inherited from Object.)
Protected methodProcessFilter
Process the filter on the specified image.
(Overrides BaseFilterProcessFilter(UnmanagedImage, UnmanagedImage).)
Public methodToString
Returns a string that represents the current object.
(Inherited from Object.)
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Extension Methods
  NameDescription
Public Extension MethodHasMethod
Checks whether an object implements a method with the given name.
(Defined by ExtensionMethods.)
Public Extension MethodToTOverloaded.
Converts an object into another type, irrespective of whether the conversion can be done at compile time or not. This can be used to convert generic types to numeric types during runtime.
(Defined by ExtensionMethods.)
Public Extension MethodToTOverloaded.
Converts an object into another type, irrespective of whether the conversion can be done at compile time or not. This can be used to convert generic types to numeric types during runtime.
(Defined by Matrix.)
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Remarks

Extracts specified normalized RGB channel of color image and returns it as grayscale image.

Note Note
Normalized RGB color space is defined as:
r = R / (R + G + B ),
g = G / (R + G + B ),
b = B / (R + G + B ),
where R, G and B are components of RGB color space and r, g and b are components of normalized RGB color space.

The filter accepts 24, 32, 48 and 64 bpp color images and produces 8 (if source is 24 or 32 bpp image) or 16 (if source is 48 or 64 bpp image) bpp grayscale image.

Sample usage:

// create filter
ExtractNormalizedRGBChannel filter = new ExtractNormalizedRGBChannel( RGB.G );
// apply the filter
Bitmap channelImage = filter.Apply( image );
See Also