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WaveletTransform Class
Wavelet transform filter.
Inheritance Hierarchy
SystemObject
  Accord.Imaging.FiltersBaseFilter
    Accord.Imaging.FiltersWaveletTransform

Namespace:  Accord.Imaging.Filters
Assembly:  Accord.Imaging (in Accord.Imaging.dll) Version: 3.8.0
Syntax
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public class WaveletTransform : BaseFilter
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The WaveletTransform type exposes the following members.

Constructors
  NameDescription
Public methodWaveletTransform(IWavelet)
Constructs a new Wavelet Transform filter.
Public methodWaveletTransform(IWavelet, Boolean)
Constructs a new Wavelet Transform filter.
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Properties
  NameDescription
Public propertyBackward
Gets or sets whether the filter should be applied forward or backwards.
Public propertyFormatTranslations
Format translations dictionary.
(Overrides BaseFilterFormatTranslations.)
Public propertyWavelet
Gets or sets the Wavelet function
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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
Applies the filter to the 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 MethodIsEqual
Compares two objects for equality, performing an elementwise comparison if the elements are vectors or matrices.
(Defined by Matrix.)
Public Extension MethodTo(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.)
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.)
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Examples
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Bitmap image = ... // Lena's famous picture

// Create a new Haar Wavelet transform filter
var wavelet = new WaveletTransform(new Haar(1));

// Apply the Wavelet transformation
Bitmap result = wavelet.Apply(image);

// Show on the screen
ImageBox.Show(result);

The resulting image is shown below.

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// Extract only one of the resulting images
var crop = new Crop(new Rectangle(0, 0, 
    image.Width / 2, image.Height / 2));

Bitmap quarter = crop.Apply(result);

// Show on the screen
ImageBox.Show(quarter);

The resulting image is shown below.

See Also