C# 클래스 Accord.Imaging.Filters.QuadrilateralTransformation

Performs quadrilateral transformation of an area in a given source image.

The class implements quadrilateral transformation algorithm, which allows to transform any quadrilateral from a given source image to a rectangular image. The idea of the algorithm is based on homogeneous transformation and its math is described by Paul Heckbert in his "Projective Mappings for Image Warping" paper.

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

Sample usage:

 // define quadrilateral's corners List<IntPoint> corners = new List<IntPoint>( ); corners.Add( new IntPoint(  99,  99 ) ); corners.Add( new IntPoint( 156,  79 ) ); corners.Add( new IntPoint( 184, 126 ) ); corners.Add( new IntPoint( 122, 150 ) ); // create filter QuadrilateralTransformation filter = new QuadrilateralTransformation( corners, 200, 200 ); // apply the filter Bitmap newImage = filter.Apply( image );

Initial image:

Result image:

상속: BaseTransformationFilter

파일 보기 프로젝트 열기: accord-net/framework

보호된 프로퍼티들

프로퍼티	타입	설명
newHeight	int
newWidth	int

공개 메소드들

메소드	설명
QuadrilateralTransformation ( ) : System	Initializes a new instance of the QuadrilateralTransformation class.
QuadrilateralTransformation ( List sourceQuadrilateral ) : System	Initializes a new instance of the QuadrilateralTransformation class. This constructor sets AutomaticSizeCalculaton to , which means that destination image will have width and height automatically calculated based on SourceQuadrilateral property.
QuadrilateralTransformation ( List sourceQuadrilateral, int newWidth, int newHeight ) : System	Initializes a new instance of the QuadrilateralTransformation class. This constructor sets AutomaticSizeCalculaton to , which means that destination image will have width and height as specified by user.

보호된 메소드들

메소드	설명
CalculateNewImageSize ( UnmanagedImage sourceData ) : Size	Calculates new image size.
ProcessFilter ( UnmanagedImage sourceData, UnmanagedImage destinationData ) : void	Process the filter on the specified image.

비공개 메소드들

메소드	설명
CalculateDestinationSize ( ) : void

메소드 상세

CalculateNewImageSize() 보호된 메소드

Calculates new image size.

Source quadrilateral was not set.

protected CalculateNewImageSize ( UnmanagedImage sourceData ) : Size
sourceData	UnmanagedImage	Source image data.
리턴	System.Drawing.Size

ProcessFilter() 보호된 메소드

Process the filter on the specified image.

protected ProcessFilter ( UnmanagedImage sourceData, UnmanagedImage destinationData ) : void
sourceData	UnmanagedImage	Source image data.
destinationData	UnmanagedImage	Destination image data.
리턴	void

QuadrilateralTransformation() 공개 메소드

Initializes a new instance of the QuadrilateralTransformation class.

public QuadrilateralTransformation ( ) : System
리턴	System

QuadrilateralTransformation() 공개 메소드

Initializes a new instance of the QuadrilateralTransformation class.

This constructor sets AutomaticSizeCalculaton to , which means that destination image will have width and height automatically calculated based on SourceQuadrilateral property.

public QuadrilateralTransformation ( List sourceQuadrilateral ) : System
sourceQuadrilateral	List	Corners of the source quadrilateral area.
리턴	System

QuadrilateralTransformation() 공개 메소드

Initializes a new instance of the QuadrilateralTransformation class.

This constructor sets AutomaticSizeCalculaton to , which means that destination image will have width and height as specified by user.

public QuadrilateralTransformation ( List sourceQuadrilateral, int newWidth, int newHeight ) : System
sourceQuadrilateral	List	Corners of the source quadrilateral area.
newWidth	int	Width of the new transformed image.
newHeight	int	Height of the new transformed image.
리턴	System

프로퍼티 상세

newHeight 보호되어 있는 프로퍼티

New image height.

protected int newHeight
리턴	int

newWidth 보호되어 있는 프로퍼티

New image width.

protected int newWidth
리턴	int