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ConservativeSmoothing Class |
Inheritance HierarchyAccord.Imaging.FiltersBaseUsingCopyPartialFilter
Accord.Imaging.FiltersConservativeSmoothing
Namespace: Accord.Imaging.Filters
Assembly: Accord.Imaging (in Accord.Imaging.dll) Version: 3.8.0
SyntaxThe ConservativeSmoothing type exposes the following members.
Constructors| Name | Description | |
|---|---|---|
 | ConservativeSmoothing |
Initializes a new instance of the ConservativeSmoothing class.
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| ConservativeSmoothing(Int32) |
Initializes a new instance of the ConservativeSmoothing class.
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Properties| Name | Description | |
|---|---|---|
 | FormatTranslations |
Format translations dictionary.
(Overrides BaseUsingCopyPartialFilterFormatTranslations.) |
| KernelSize |
Kernel size, [3, 25].
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Methods| Name | Description | |
|---|---|---|
| Apply(Bitmap) |
Apply filter to an image.
(Inherited from BaseUsingCopyPartialFilter.) |
| Apply(BitmapData) |
Apply filter to an image.
(Inherited from BaseUsingCopyPartialFilter.) |
| Apply(UnmanagedImage) |
Apply filter to an image in unmanaged memory.
(Inherited from BaseUsingCopyPartialFilter.) |
| Apply(UnmanagedImage, UnmanagedImage) |
Apply filter to an image in unmanaged memory.
(Inherited from BaseUsingCopyPartialFilter.) |
| ApplyInPlace(Bitmap) |
Apply filter to an image.
(Inherited from BaseUsingCopyPartialFilter.) |
| ApplyInPlace(BitmapData) |
Apply filter to an image.
(Inherited from BaseUsingCopyPartialFilter.) |
| ApplyInPlace(UnmanagedImage) |
Apply filter to an unmanaged image.
(Inherited from BaseUsingCopyPartialFilter.) |
| ApplyInPlace(Bitmap, Rectangle) |
Apply filter to an image or its part.
(Inherited from BaseUsingCopyPartialFilter.) |
| ApplyInPlace(BitmapData, Rectangle) |
Apply filter to an image or its part.
(Inherited from BaseUsingCopyPartialFilter.) |
| ApplyInPlace(UnmanagedImage, Rectangle) |
Apply filter to an unmanaged image or its part.
(Inherited from BaseUsingCopyPartialFilter.) |
| 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 BaseUsingCopyPartialFilterProcessFilter(UnmanagedImage, UnmanagedImage, Rectangle).) |
| ToString | Returns a string that represents the current object. (Inherited from Object.) |
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 filter implements conservative smoothing, which is a noise reduction technique that derives its name from the fact that it employs a simple, fast filtering algorithm that sacrifices noise suppression power in order to preserve the high spatial frequency detail (e.g. sharp edges) in an image. It is explicitly designed to remove noise spikes - isolated pixels of exceptionally low or high pixel intensity (salt and pepper noise).
If the filter finds a pixel which has minimum/maximum value compared to its surrounding pixel, then its value is replaced by minimum/maximum value of those surrounding pixel. For example, lets suppose the filter uses kernel size of 3x3, which means each pixel has 8 surrounding pixel. If pixel's value is smaller than any value of surrounding pixels, then the value of the pixel is replaced by minimum value of those surrounding pixels.
The filter accepts 8 bpp grayscale images and 24/32 bpp color images for processing.
Sample usage:
// create filter ConservativeSmoothing filter = new ConservativeSmoothing( ); // apply the filter filter.ApplyInPlace( image );
Initial image:
Result image:
See Also