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BlobsFiltering Class

Blobs filtering by size.
Inheritance Hierarchy
SystemObject
  Accord.Imaging.FiltersBaseInPlaceFilter
    Accord.Imaging.FiltersBlobsFiltering

Namespace:  Accord.Imaging.Filters
Assembly:  Accord.Imaging (in Accord.Imaging.dll) Version: 3.7.0
Syntax
public class BlobsFiltering : BaseInPlaceFilter
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The BlobsFiltering type exposes the following members.

Constructors
  NameDescription
Public methodBlobsFiltering
Initializes a new instance of the BlobsFiltering class.
Public methodBlobsFiltering(IBlobsFilter)
Initializes a new instance of the BlobsFiltering class.
Public methodBlobsFiltering(Int32, Int32, Int32, Int32)
Initializes a new instance of the BlobsFiltering class.
Public methodBlobsFiltering(Int32, Int32, Int32, Int32, Boolean)
Initializes a new instance of the BlobsFiltering class.
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Properties
  NameDescription
Public propertyBlobsFilter
Custom blobs' filter to use.
Public propertyCoupledSizeFiltering
Specifies if size filetering should be coupled or not.
Public propertyFormatTranslations
Format translations dictionary.
(Overrides BaseInPlaceFilterFormatTranslations.)
Public propertyMaxHeight
Maximum allowed height of blob.
Public propertyMaxWidth
Maximum allowed width of blob.
Public propertyMinHeight
Minimum allowed height of blob.
Public propertyMinWidth
Minimum allowed width of blob.
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Methods
  NameDescription
Public methodApply(Bitmap)
Apply filter to an image.
(Inherited from BaseInPlaceFilter.)
Public methodApply(BitmapData)
Apply filter to an image.
(Inherited from BaseInPlaceFilter.)
Public methodApply(UnmanagedImage)
Apply filter to an image in unmanaged memory.
(Inherited from BaseInPlaceFilter.)
Public methodApply(UnmanagedImage, UnmanagedImage)
Apply filter to an image in unmanaged memory.
(Inherited from BaseInPlaceFilter.)
Public methodApplyInPlace(Bitmap)
Apply filter to an image.
(Inherited from BaseInPlaceFilter.)
Public methodApplyInPlace(BitmapData)
Apply filter to an image.
(Inherited from BaseInPlaceFilter.)
Public methodApplyInPlace(UnmanagedImage)
Apply filter to an unmanaged image.
(Inherited from BaseInPlaceFilter.)
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 BaseInPlaceFilterProcessFilter(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 MethodIsEqual
Compares two objects for equality, performing an elementwise comparison if the elements are vectors or matrices.
(Defined by Matrix.)
Public Extension MethodToT
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.)
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Remarks

The filter performs filtering of blobs by their size in the specified source image - all blobs, which are smaller or bigger then specified limits, are removed from the image.

Note Note
The image processing filter treats all none black pixels as objects' pixels and all black pixel as background.

The filter accepts 8 bpp grayscale images and 24/32 color images for processing.

Sample usage:

// create filter
BlobsFiltering filter = new BlobsFiltering( );
// configure filter
filter.CoupledSizeFiltering = true;
filter.MinWidth  = 70;
filter.MinHeight = 70;
// apply the filter
filter.ApplyInPlace( image );

Initial image:

Result image:

See Also