Package org.opencv.ximgproc
Class EdgeDrawing
- java.lang.Object
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- org.opencv.core.Algorithm
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- org.opencv.ximgproc.EdgeDrawing
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public class EdgeDrawing extends Algorithm
Class implementing the ED (EdgeDrawing) CITE: topal2012edge, EDLines CITE: akinlar2011edlines, EDPF CITE: akinlar2012edpf and EDCircles CITE: akinlar2013edcircles algorithms
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Constructor Summary
Constructors Modifier Constructor Description protected
EdgeDrawing(long addr)
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description static EdgeDrawing
__fromPtr__(long addr)
void
detectEdges(Mat src)
Detects edges in a grayscale image and prepares them to detect lines and ellipses.void
detectEllipses(Mat ellipses)
Detects circles and ellipses.void
detectLines(Mat lines)
Detects lines.protected void
finalize()
void
getEdgeImage(Mat dst)
returns Edge Image prepared by detectEdges() function.void
getGradientImage(Mat dst)
returns Gradient Image prepared by detectEdges() function.MatOfInt
getSegmentIndicesOfLines()
Returns for each line found in detectLines() its edge segment index in getSegments()java.util.List<MatOfPoint>
getSegments()
Returns std::vector<std::vector<Point>> of detected edge segments, see detectEdges()void
setParams(EdgeDrawing_Params parameters)
sets parameters.-
Methods inherited from class org.opencv.core.Algorithm
clear, empty, getDefaultName, getNativeObjAddr, save
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Field Detail
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PREWITT
public static final int PREWITT
- See Also:
- Constant Field Values
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SOBEL
public static final int SOBEL
- See Also:
- Constant Field Values
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SCHARR
public static final int SCHARR
- See Also:
- Constant Field Values
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LSD
public static final int LSD
- See Also:
- Constant Field Values
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Method Detail
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__fromPtr__
public static EdgeDrawing __fromPtr__(long addr)
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detectEdges
public void detectEdges(Mat src)
Detects edges in a grayscale image and prepares them to detect lines and ellipses.- Parameters:
src
- 8-bit, single-channel, grayscale input image.
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getEdgeImage
public void getEdgeImage(Mat dst)
returns Edge Image prepared by detectEdges() function.- Parameters:
dst
- returns 8-bit, single-channel output image.
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getGradientImage
public void getGradientImage(Mat dst)
returns Gradient Image prepared by detectEdges() function.- Parameters:
dst
- returns 16-bit, single-channel output image.
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getSegments
public java.util.List<MatOfPoint> getSegments()
Returns std::vector<std::vector<Point>> of detected edge segments, see detectEdges()- Returns:
- automatically generated
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getSegmentIndicesOfLines
public MatOfInt getSegmentIndicesOfLines()
Returns for each line found in detectLines() its edge segment index in getSegments()- Returns:
- automatically generated
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detectLines
public void detectLines(Mat lines)
Detects lines.- Parameters:
lines
- output Vec<4f> contains the start point and the end point of detected lines. Note: you should call detectEdges() before calling this function.
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detectEllipses
public void detectEllipses(Mat ellipses)
Detects circles and ellipses.- Parameters:
ellipses
- output Vec<6d> contains center point and perimeter for circles, center point, axes and angle for ellipses. Note: you should call detectEdges() before calling this function.
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setParams
public void setParams(EdgeDrawing_Params parameters)
sets parameters. this function is meant to be used for parameter setting in other languages than c++ like python.- Parameters:
parameters
- Parameters of the algorithm
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