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Opening Class |
Opening operator from Mathematical Morphology.
Inheritance HierarchySystemObject
Accord.Imaging.FiltersOpening
Accord.Imaging.FiltersOpening
Namespace: Accord.Imaging.Filters
Assembly: Accord.Imaging (in Accord.Imaging.dll) Version: 3.8.0
SyntaxThe Opening type exposes the following members.
Constructors| Name | Description | |
|---|---|---|
 | Opening |
Initializes a new instance of the Opening class.
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| Opening(Int16) |
Initializes a new instance of the Opening class.
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Properties| Name | Description | |
|---|---|---|
 | FormatTranslations |
Format translations dictionary.
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Methods| Name | Description | |
|---|---|---|
| Apply(Bitmap) |
Apply filter to an image.
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| Apply(BitmapData) |
Apply filter to an image.
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| Apply(UnmanagedImage) |
Apply filter to an image in unmanaged memory.
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| Apply(UnmanagedImage, UnmanagedImage) |
Apply filter to an image in unmanaged memory.
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| ApplyInPlace(Bitmap) |
Apply filter to an image.
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| ApplyInPlace(BitmapData) |
Apply filter to an image.
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| ApplyInPlace(UnmanagedImage) |
Apply filter to an unmanaged image.
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| ApplyInPlace(Bitmap, Rectangle) |
Apply filter to an image or its part.
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| ApplyInPlace(BitmapData, Rectangle) |
Apply filter to an image or its part.
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| ApplyInPlace(UnmanagedImage, Rectangle) |
Apply filter to an unmanaged image or its part.
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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.) |
| 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.) |
RemarksOpening morphology operator equals to erosion followed by dilation.
Applied to binary image, the filter may be used for removing small object keeping big objects unchanged. Since erosion is used first, it removes all small objects. Then dilation restores big objects, which were not removed by erosion.
See documentation to Erosion and Dilation classes for more information and list of supported pixel formats.
Sample usage:
// create filter Opening filter = new Opening( ); // apply the filter filter.Apply( image );
Initial image:
Result image:
See Also