Package boofcv.alg.filter.derivative

Class GradientPrewitt

java.lang.Object

boofcv.alg.filter.derivative.GradientPrewitt

public class GradientPrewitt
extends Object

Operations for computing Prewitt image gradient.

Field Summary

Fields

Modifier and Type	Field	Description
static Kernel2D_F32	kernelDerivX_F32
static Kernel2D_S32	kernelDerivX_I32
static Kernel2D_F32	kernelDerivY_F32
static Kernel2D_S32	kernelDerivY_I32

Constructor Summary

Constructors

Constructor	Description
GradientPrewitt()

Method Summary

Modifier and Type	Method	Description
static Kernel2D	getKernelX(boolean isInteger)	Returns the kernel for computing the derivative along the x-axis.
static void	process(GrayF32 orig, GrayF32 derivX, GrayF32 derivY, @Nullable ImageBorder_F32 border)	Computes the derivative in the X and Y direction using a floating point Prewitt edge detector.
static void	process(GrayS16 orig, GrayS16 derivX, GrayS16 derivY, @Nullable ImageBorder_S32 border)	Computes the derivative in the X and Y direction using an integer Prewitt edge detector.
static void	process(GrayU8 orig, GrayS16 derivX, GrayS16 derivY, @Nullable ImageBorder_S32 border)	Computes the derivative in the X and Y direction using an integer Prewitt edge detector.
static <I extends ImageGray<I>, D extends ImageGray<D>> void	process(I input, D derivX, D derivY, @Nullable ImageBorder border)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

kernelDerivX_I32

public static Kernel2D_S32 kernelDerivX_I32

kernelDerivY_I32

public static Kernel2D_S32 kernelDerivY_I32

kernelDerivX_F32

public static Kernel2D_F32 kernelDerivX_F32

kernelDerivY_F32

public static Kernel2D_F32 kernelDerivY_F32

Constructor Details

GradientPrewitt

public GradientPrewitt()

Method Details

getKernelX

public static Kernel2D getKernelX(boolean isInteger)

Returns the kernel for computing the derivative along the x-axis.

process

public static <I extends ImageGray<I>,
D extends ImageGray<D>>
void process(I input,
 D derivX,
 D derivY,
 @Nullable
 @Nullable ImageBorder border)

process

public static void process(GrayU8 orig,
 GrayS16 derivX,
 GrayS16 derivY,
 @Nullable
 @Nullable ImageBorder_S32 border)

Computes the derivative in the X and Y direction using an integer Prewitt edge detector.

Parameters:

orig - Input image. Not modified.

derivX - Storage for image derivative along the x-axis. Modified.

derivY - Storage for image derivative along the y-axis. Modified.

border - Specifies how the image border is handled. If null the border is not processed.

process

public static void process(GrayS16 orig,
 GrayS16 derivX,
 GrayS16 derivY,
 @Nullable
 @Nullable ImageBorder_S32 border)

Computes the derivative in the X and Y direction using an integer Prewitt edge detector.

Parameters:

orig - Input image. Not modified.

derivX - Storage for image derivative along the x-axis. Modified.

derivY - Storage for image derivative along the y-axis. Modified.

border - Specifies how the image border is handled. If null the border is not processed.

process

public static void process(GrayF32 orig,
 GrayF32 derivX,
 GrayF32 derivY,
 @Nullable
 @Nullable ImageBorder_F32 border)

Computes the derivative in the X and Y direction using a floating point Prewitt edge detector.

Parameters:

orig - Input image. Not modified.

derivX - Storage for image derivative along the x-axis. Modified.

derivY - Storage for image derivative along the y-axis. Modified.

border - Specifies how the image border is handled. If null the border is not processed.