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RotateNearestNeighbor Class

Rotate image using nearest neighbor algorithm.
Inheritance Hierarchy
SystemObject
  Accord.Imaging.FiltersBaseTransformationFilter
    Accord.Imaging.FiltersBaseRotateFilter
      Accord.Imaging.FiltersRotateNearestNeighbor

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

Constructors
  NameDescription
Public methodRotateNearestNeighbor(Double)
Initializes a new instance of the RotateNearestNeighbor class.
Public methodRotateNearestNeighbor(Double, Boolean)
Initializes a new instance of the RotateNearestNeighbor class.
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Properties
  NameDescription
Public propertyAngle
Rotation angle, [0, 360].
(Inherited from BaseRotateFilter.)
Public propertyFillColor
Fill color.
(Inherited from BaseRotateFilter.)
Public propertyFormatTranslations
Format translations dictionary.
(Overrides BaseTransformationFilterFormatTranslations.)
Public propertyKeepSize
Keep image size or not.
(Inherited from BaseRotateFilter.)
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Methods
  NameDescription
Public methodApply(Bitmap)
Apply filter to an image.
(Inherited from BaseTransformationFilter.)
Public methodApply(BitmapData)
Apply filter to an image.
(Inherited from BaseTransformationFilter.)
Public methodApply(UnmanagedImage)
Apply filter to an image in unmanaged memory.
(Inherited from BaseTransformationFilter.)
Public methodApply(UnmanagedImage, UnmanagedImage)
Apply filter to an image in unmanaged memory.
(Inherited from BaseTransformationFilter.)
Protected methodCalculateNewImageSize
Calculates new image size.
(Inherited from BaseRotateFilter.)
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 BaseTransformationFilterProcessFilter(UnmanagedImage, UnmanagedImage).)
Public methodToString
Returns a string that represents the current object.
(Inherited from Object.)
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Fields
  NameDescription
Protected fieldangle
Rotation angle.
(Inherited from BaseRotateFilter.)
Protected fieldfillColor
Fill color.
(Inherited from BaseRotateFilter.)
Protected fieldkeepSize
Keep image size or not.
(Inherited from BaseRotateFilter.)
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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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Remarks

The class implements image rotation filter using nearest neighbor algorithm, which does not assume any interpolation.

Note Note
Rotation is performed in counterclockwise direction.

The filter accepts 8/16 bpp grayscale images and 24/48 bpp color image for processing.

Sample usage:

// create filter - rotate for 30 degrees keeping original image size
RotateNearestNeighbor filter = new RotateNearestNeighbor( 30, true );
// apply the filter
Bitmap newImage = filter.Apply( image );

Initial image:

Result image:

See Also