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MatrixH Class |
Encapsulates a 3-by-3 general transformation matrix
that represents a (possibly) non-linear transform.
Inheritance HierarchySystemObject
Accord.ImagingMatrixH
Accord.ImagingMatrixH
Namespace: Accord.Imaging
Assembly: Accord.Imaging (in Accord.Imaging.dll) Version: 3.8.0
SyntaxThe MatrixH type exposes the following members.
Constructors| Name | Description | |
|---|---|---|
 | MatrixH |
Creates a new projective matrix.
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| MatrixH(Double) |
Creates a new projective matrix.
|
| MatrixH(Single) |
Creates a new projective matrix.
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| MatrixH(Single) |
Creates a new projective matrix.
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| MatrixH(Single, Single, Single, Single, Single, Single, Single, Single) |
Creates a new projective matrix.
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| MatrixH(Single, Single, Single, Single, Single, Single, Single, Single, Single) |
Creates a new projective matrix.
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Properties| Name | Description | |
|---|---|---|
 | Elements |
Gets the elements of this matrix.
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| IsAffine |
Gets whether this is an Affine transformation matrix.
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| IsIdentity |
Gets whether this is the identity transformation.
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| IsInvertible |
Gets whether this matrix is invertible.
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| OffsetX |
Gets the offset x
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| OffsetY |
Gets the offset y
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Methods| Name | Description | |
|---|---|---|
| Equals |
Compares two objects for equality.
(Overrides ObjectEquals(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 |
Returns the hash code for this instance.
(Overrides ObjectGetHashCode.) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| Inverse |
Returns the inverse matrix, if this matrix is invertible.
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| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
| Multiply |
Multiplies this matrix, returning a new matrix as result.
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| Reset |
Resets this matrix to be the identity.
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| ToDoubleArray |
Double[,] conversion.
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| ToSingleArray |
Single[,] conversion.
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| ToString | Returns a string that represents the current object. (Inherited from Object.) |
| TransformPoints(PointF) |
Transforms the given points using this transformation matrix.
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| TransformPoints(PointH) |
Transforms the given points using this transformation matrix.
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| Transpose |
Gets the transpose of this transformation matrix.
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Operators| Name | Description | |
|---|---|---|
  | (MatrixH to Double) |
Double[,] conversion.
|
| (MatrixH to Single) |
Single[,] conversion.
|
| Multiply |
Matrix multiplication.
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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.) |
RemarksLinear transformations are not the only ones that can be represented by matrices. Using homogeneous coordinates, both affine transformations and perspective projections on R^n can be represented as linear transformations on R^n+1 (that is, n+1-dimensional real projective space).
The general transformation matrix has 8 degrees of freedom, as the last element is just a scale parameter.
See Also