boofcv.alg.filter.convolve

Class ConvolveDownNormalized

java.lang.Object

boofcv.alg.filter.convolve.ConvolveDownNormalized

public class ConvolveDownNormalized
extends Object

Specialized convolution where the center of the convolution skips over a constant number of pixels in the x and/or y axis. Image borders are handled by renormalizing the kernel. The output it written into an image in a dense fashion, resulting in it being at a lower resolution. A typical application for this is down sampling inside an image pyramid.

Author:

Peter Abeles

Constructor Summary

Constructors

Constructor and Description
ConvolveDownNormalized()

Method Summary

Methods

Modifier and Type	Method and Description
static void	convolve(Kernel2D_F32 kernel, ImageFloat32 image, ImageFloat32 dest, int skip) Performs a 2D down convolution across the image while re-normalizing the kernel depending on its overlap with the image.
static void	convolve(Kernel2D_I32 kernel, ImageSInt16 image, ImageInt16 dest, int skip) Performs a 2D down convolution across the image while re-normalizing the kernel depending on its overlap with the image.
static void	convolve(Kernel2D_I32 kernel, ImageUInt8 image, ImageInt8 dest, int skip) Performs a 2D down convolution across the image while re-normalizing the kernel depending on its overlap with the image.
static void	horizontal(Kernel1D_F32 kernel, ImageFloat32 image, ImageFloat32 dest, int skip) Performs a horizontal 1D down convolution across the image while re-normalizing the kernel depending on its overlap with the image.
static void	horizontal(Kernel1D_I32 kernel, ImageSInt16 image, ImageInt16 dest, int skip) Performs a horizontal 1D down convolution across the image while re-normalizing the kernel depending on its overlap with the image.
static void	horizontal(Kernel1D_I32 kernel, ImageUInt8 image, ImageInt8 dest, int skip) Performs a horizontal 1D down convolution across the image while re-normalizing the kernel depending on its overlap with the image.
static void	vertical(Kernel1D_F32 kernel, ImageFloat32 image, ImageFloat32 dest, int skip) Performs a vertical 1D down convolution across the image while re-normalizing the kernel depending on its overlap with the image.
static void	vertical(Kernel1D_I32 kernel, ImageSInt16 image, ImageInt16 dest, int skip) Performs a vertical 1D down convolution across the image while re-normalizing the kernel depending on its overlap with the image.
static void	vertical(Kernel1D_I32 kernel, ImageUInt8 image, ImageInt8 dest, int skip) Performs a vertical 1D down convolution across the image while re-normalizing the kernel depending on its overlap with the image.

Methods inherited from class java.lang.Object

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

Constructor Detail

ConvolveDownNormalized

public ConvolveDownNormalized()

Method Detail

horizontal

public static void horizontal(Kernel1D_F32 kernel,
              ImageFloat32 image,
              ImageFloat32 dest,
              int skip)

Performs a horizontal 1D down convolution across the image while re-normalizing the kernel depending on its overlap with the image.

Parameters:

image - The original image. Not modified.

dest - Where the resulting image is written to. Modified.

kernel - The kernel that is being convolved. Not modified.

vertical

public static void vertical(Kernel1D_F32 kernel,
            ImageFloat32 image,
            ImageFloat32 dest,
            int skip)

Performs a vertical 1D down convolution across the image while re-normalizing the kernel depending on its overlap with the image.

Parameters:

image - The original image. Not modified.

dest - Where the resulting image is written to. Modified.

kernel - The kernel that is being convolved. Not modified.

convolve

public static void convolve(Kernel2D_F32 kernel,
            ImageFloat32 image,
            ImageFloat32 dest,
            int skip)

Performs a 2D down convolution across the image while re-normalizing the kernel depending on its overlap with the image.

Parameters:

image - The original image. Not modified.

dest - Where the resulting image is written to. Modified.

kernel - The kernel that is being convolved. Not modified.

horizontal

public static void horizontal(Kernel1D_I32 kernel,
              ImageUInt8 image,
              ImageInt8 dest,
              int skip)

Performs a horizontal 1D down convolution across the image while re-normalizing the kernel depending on its overlap with the image.

Parameters:

image - The original image. Not modified.

dest - Where the resulting image is written to. Modified.

kernel - The kernel that is being convolved. Not modified.

vertical

public static void vertical(Kernel1D_I32 kernel,
            ImageUInt8 image,
            ImageInt8 dest,
            int skip)

Performs a vertical 1D down convolution across the image while re-normalizing the kernel depending on its overlap with the image.

Parameters:

image - The original image. Not modified.

dest - Where the resulting image is written to. Modified.

kernel - The kernel that is being convolved. Not modified.

convolve

public static void convolve(Kernel2D_I32 kernel,
            ImageUInt8 image,
            ImageInt8 dest,
            int skip)

Performs a 2D down convolution across the image while re-normalizing the kernel depending on its overlap with the image.

Parameters:

image - The original image. Not modified.

dest - Where the resulting image is written to. Modified.

kernel - The kernel that is being convolved. Not modified.

horizontal

public static void horizontal(Kernel1D_I32 kernel,
              ImageSInt16 image,
              ImageInt16 dest,
              int skip)

Performs a horizontal 1D down convolution across the image while re-normalizing the kernel depending on its overlap with the image.

Parameters:

image - The original image. Not modified.

dest - Where the resulting image is written to. Modified.

kernel - The kernel that is being convolved. Not modified.

vertical

public static void vertical(Kernel1D_I32 kernel,
            ImageSInt16 image,
            ImageInt16 dest,
            int skip)

Performs a vertical 1D down convolution across the image while re-normalizing the kernel depending on its overlap with the image.

Parameters:

image - The original image. Not modified.

dest - Where the resulting image is written to. Modified.

kernel - The kernel that is being convolved. Not modified.

convolve

public static void convolve(Kernel2D_I32 kernel,
            ImageSInt16 image,
            ImageInt16 dest,
            int skip)

Performs a 2D down convolution across the image while re-normalizing the kernel depending on its overlap with the image.

Parameters:

image - The original image. Not modified.

dest - Where the resulting image is written to. Modified.

kernel - The kernel that is being convolved. Not modified.