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ErrorDiffusionDithering Class |
Inheritance HierarchyAccord.Imaging.FiltersBaseInPlacePartialFilter
Accord.Imaging.FiltersErrorDiffusionDithering
Accord.Imaging.FiltersErrorDiffusionToAdjacentNeighbors
Namespace: Accord.Imaging.Filters
Assembly: Accord.Imaging (in Accord.Imaging.dll) Version: 3.8.0
SyntaxThe ErrorDiffusionDithering type exposes the following members.
Constructors| Name | Description | |
|---|---|---|
 | ErrorDiffusionDithering |
Initializes a new instance of the ErrorDiffusionDithering class.
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Properties| Name | Description | |
|---|---|---|
 | FormatTranslations |
Format translations dictionary.
(Overrides BaseInPlacePartialFilterFormatTranslations.) |
| ThresholdValue |
Threshold value.
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Methods| Name | Description | |
|---|---|---|
 | Apply(Bitmap) |
Apply filter to an image.
(Inherited from BaseInPlacePartialFilter.) |
| Apply(BitmapData) |
Apply filter to an image.
(Inherited from BaseInPlacePartialFilter.) |
| Apply(UnmanagedImage) |
Apply filter to an image in unmanaged memory.
(Inherited from BaseInPlacePartialFilter.) |
| Apply(UnmanagedImage, UnmanagedImage) |
Apply filter to an image in unmanaged memory.
(Inherited from BaseInPlacePartialFilter.) |
| ApplyInPlace(Bitmap) |
Apply filter to an image.
(Inherited from BaseInPlacePartialFilter.) |
| ApplyInPlace(BitmapData) |
Apply filter to an image.
(Inherited from BaseInPlacePartialFilter.) |
| ApplyInPlace(UnmanagedImage) |
Apply filter to an unmanaged image.
(Inherited from BaseInPlacePartialFilter.) |
| ApplyInPlace(Bitmap, Rectangle) |
Apply filter to an image or its part.
(Inherited from BaseInPlacePartialFilter.) |
| ApplyInPlace(BitmapData, Rectangle) |
Apply filter to an image or its part.
(Inherited from BaseInPlacePartialFilter.) |
| ApplyInPlace(UnmanagedImage, Rectangle) |
Apply filter to an unmanaged image or its part.
(Inherited from BaseInPlacePartialFilter.) |
| Diffuse |
Do error diffusion.
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| Equals | Determines whether the specified object is equal to the current object. (Inherited from Object.) |
| Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
| GetHashCode | Serves as the default hash function. (Inherited from Object.) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
| ProcessFilter |
Process the filter on the specified image.
(Overrides BaseInPlacePartialFilterProcessFilter(UnmanagedImage, Rectangle).) |
| ToString | Returns a string that represents the current object. (Inherited from Object.) |
Fields| Name | Description | |
|---|---|---|
 | startX |
Processing X start position.
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| startY |
Processing Y start position.
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| stopX |
Processing X stop position.
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| stopY |
Processing Y stop position.
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| stride |
Processing image's stride (line size).
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| x |
Current processing X coordinate.
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| y |
Current processing Y coordinate.
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Extension Methods| Name | Description | |
|---|---|---|
 | HasMethod |
Checks whether an object implements a method with the given name.
(Defined by ExtensionMethods.) |
| IsEqual |
Compares two objects for equality, performing an elementwise
comparison if the elements are vectors or matrices.
(Defined by Matrix.) |
| To(Type) | Overloaded.
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.) |
| ToT | Overloaded.
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.) |
RemarksThe class is the base class for binarization algorithms based on error diffusion.
Binarization with error diffusion in its idea is similar to binarization based on thresholding of pixels' cumulative value (see ThresholdWithCarry). Each pixel is binarized based not only on its own value, but on values of some surrounding pixels. During pixel's binarization, its binarization error is distributed (diffused) to some neighbor pixels with some coefficients. This error diffusion updates neighbor pixels changing their values, what affects their upcoming binarization. Error diffuses only on unprocessed yet neighbor pixels, which are right and bottom pixels usually (in the case if image processing is done from upper left corner to bottom right corner). Binarization error equals to processing pixel value, if it is below threshold value, or pixel value minus 255 otherwise.
The filter accepts 8 bpp grayscale images for processing.
See Also